A huge subclass of mostly marine CRUSTACEA, containing over 14,000 species. The 10 orders comprise both planktonic and benthic organisms, and include both free-living and parasitic forms. Planktonic copepods form the principle link between PHYTOPLANKTON and the higher trophic levels of the marine food chains.
Infestations by PARASITES which live on, or burrow into, the surface of their host's EPIDERMIS. Most ectoparasites are ARTHROPODS.
A suborder of CRUSTACEA, order Diplostraca, comprising the water fleas. They are benthic filter feeders that consume PHYTOPLANKTON. The body is laterally compressed and enclosed in a bivalved carapace, from which the head extends.
Minute free-floating animal organisms which live in practically all natural waters.
A large subphylum of mostly marine ARTHROPODS containing over 42,000 species. They include familiar arthropods such as lobsters (NEPHROPIDAE), crabs (BRACHYURA), shrimp (PENAEIDAE), and barnacles (THORACICA).
A class of minute animals of the phylum Aschelminthes.
The species Balaenoptera physalus, in the family Balaenopteridae, characterized by a large, strongly curved, dorsal fin. It is the second largest of the WHALES, highly migratory, but rarely seen near the shore.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
Diseases of freshwater, marine, hatchery or aquarium fish. This term includes diseases of both teleosts (true fish) and elasmobranchs (sharks, rays and skates).
Number of individuals in a population relative to space.
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Plants of the division Rhodophyta, commonly known as red algae, in which the red pigment (PHYCOERYTHRIN) predominates. However, if this pigment is destroyed, the algae can appear purple, brown, green, or yellow. Two important substances found in the cell walls of red algae are AGAR and CARRAGEENAN. Some rhodophyta are notable SEAWEED (macroalgae).
A commercially important species of SALMON in the family SALMONIDAE, order SALMONIFORMES, which occurs in the North Atlantic.
The most diversified of all fish orders and the largest vertebrate order. It includes many of the commonly known fish such as porgies, croakers, sunfishes, dolphin fish, mackerels, TUNA, etc.
Constituent of the 40S subunit of eukaryotic ribosomes. 18S rRNA is involved in the initiation of polypeptide synthesis in eukaryotes.
A genus of mosquitoes (CULICIDAE) frequently found in tropical and subtropical regions. YELLOW FEVER and DENGUE are two of the diseases that can be transmitted by species of this genus.
An acute febrile disease transmitted by the bite of AEDES mosquitoes infected with DENGUE VIRUS. It is self-limiting and characterized by fever, myalgia, headache, and rash. SEVERE DENGUE is a more virulent form of dengue.
A species of the genus FLAVIVIRUS which causes an acute febrile and sometimes hemorrhagic disease in man. Dengue is mosquito-borne and four serotypes are known.
A plant genus of the family BROMELIACEAE. Members contain karatasin and balansain (ENDOPEPTIDASES) and BROMELAINS.
Hospitals controlled by agencies and departments of the state government.
A province of eastern Canada, one of the Maritime Provinces with NEW BRUNSWICK; PRINCE EDWARD ISLAND; and sometimes NEWFOUNDLAND AND LABRADOR. Its capital is Halifax. The territory was granted in 1621 by James I to the Scotsman Sir William Alexander and was called Nova Scotia, the Latin for New Scotland. The territory had earlier belonged to the French, under the name of Acadia. (From Webster's New Geographical Dictionary, 1988, p871 & Room, Brewer's Dictionary of Names, 1992, p384)
An order of pelagic, shrimplike CRUSTACEA. Many consume ZOOPLANKTON and a few are predacious. Many antarctic species, such as Euphausia superba, constitute the chief food of other animals.
The continuous sequence of changes undergone by living organisms during the post-embryonic developmental process, such as metamorphosis in insects and amphibians. This includes the developmental stages of apicomplexans such as the malarial parasite, PLASMODIUM FALCIPARUM.
A species of gram-negative, anaerobic, spiral-shaped bacteria originally isolated from a saltwater pond in France. It contains a well-characterized metabolic pathway that enables it to survive transient contacts with OXYGEN.
A genus of PORPOISES, in the family Phocoenidae, comprised of several species. They frequent coastal waters, bays, estuaries, and the mouths of large rivers.
Large, robust forms of brown algae (PHAEOPHYCEAE) in the order Laminariales. They are a major component of the lower intertidal and sublittoral zones on rocky coasts in temperate and polar waters. Kelp, a kind of SEAWEED, usually refers to species in the genera LAMINARIA or MACROCYSTIS, but the term may also be used for species in FUCUS or Nereocystis.
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop.
A form-genus of spherical to rod-shaped CYANOBACTERIA in the order Chroococcales. They contain THYLAKOIDS and are found in a wide range of habitats.
Community of tiny aquatic PLANTS and ANIMALS, and photosynthetic BACTERIA, that are either free-floating or suspended in the water, with little or no power of locomotion. They are divided into PHYTOPLANKTON and ZOOPLANKTON.

Clinical efficacy of teflubenzuron (Calicide) for the treatment of Lepeophtheirus salmonis infestations of farmed Atlantic salmon Salmo salar at low water temperatures. (1/284)

The efficacy of teflubenzuron (Calicide) for the treatment of farmed Atlantic salmon Salmo salar L. infested with sea lice Lepeophtheirus salmonis (Kroyer, 1838), was investigated at low water temperatures in 2 commercial salmon farms. Calicide, coated on commercial feed pellets, was administered orally at 10 mg kg(-1) d(-1) for 7 consecutive days. Fish were randomly sampled and lice numbers recorded from both treated and control groups on 3 or 4 sampling occasions post-medication. Statistically significant reductions in the number of L. salmonis per fish were recorded. Maximum efficacy was observed toward chalimus and preadult stages of L. salmonis, and was achieved approximately 26 d post-medication. No adverse drug reactions or palatability problems were associated with the treatments.  (+info)

Laboratory evaluation of Mesocyclops annulatus (Wierzejski, 1892) (Copepoda: Cyclopidea) as a predator of container-breeding mosquitoes in Argentina. (2/284)

In laboratory bioassays we tested the predatory capacity of the copepod Mesocyclops annulatus on Aedes aegypti and Culex pipiens larvae. A single adult female of M. annulatus caused 51.6% and 52.3% mortality of 50 first instar larvae of Ae. aegypti and Cx. pipiens respectively, in a 72 h test period. When alternative food was added to the containers, mortality rates declined to 16% and 10.3% for Ae. aegypti and Cx. pipiens respectively. When 50 first instar larvae of each of the two mosquito species tested were placed together with a single adult female of M. annulatus, mortality rates were 75.5% for Ae. aegypti larvae and 23.5% for Cx. pipiens larvae in a three day test period. Different density of adult females of M. annulatus ranged from 5 to 25 females produced mortality rates of Ae. aegypti first instar larvae from 50% to 100% respectively. When a single adult female of M. annulatus was exposed to an increasing number of first-instar Ae. aegypti larvae ranging from 10 to 100, 100% mortality was recorded from 1 to 25 larvae, then mortality declined to 30% with 100 larvae. The average larvae killed per 24 h period by a single copepod were 29.  (+info)

Copepod feeding currents: flow patterns, filtration rates and energetics. (3/284)

Particle image velocimetry was used to construct a quasi 3-dimensional image of the flow generated by the feeding appendages of the calanoid copepod Temora longicornis. By scanning layers of flow, detailed information was obtained on flow velocity and velocity gradients. The flow around feeding T. longicornis was laminar, and was symmetrical viewed dorsally, but highly asymmetrical viewed laterally, with high levels of vorticity on the ventral side. The flow rate through the feeding appendages varied between 77 and 220 ml day(-1) per individual. The morphology of the flow field ensured that water was entrained over the full length of the first antennae. These were kept out of areas with high velocity gradients that could interfere with distant mechano- or chemoreception. The volume of influence, i.e. the volume of water around the foraging copepod, where shear rates were significantly higher than background levels, was calculated. Implications for encounter probability and mechanoreception are discussed. The average rate of energy dissipation within the copepod's volume of influence is several times higher than the levels of turbulent energy dissipation these animals are likely to encounter in their environment. Even in highly turbulent environments, adult T. longicornis will not experience very significant effects of turbulence. Within the volume of influence of the copepods the energy dissipation due to viscous friction varied between 6.6 x 10(-11) and 2.3 x 10(-10)W. Taking mechanical efficiency and muscle efficiency into account, this results in a total energetic cost of the feeding current of 1.6 x 10(-9)W per copepod. This value represents only a small percentage of the total energy budget of small calanoid copepods.  (+info)

Escape from viscosity: the kinematics and hydrodynamics of copepod foraging and escape swimming. (4/284)

Feeding and escape swimming in adult females of the calanoid copepod Temora longicornis Muller were investigated and compared. Swimming velocities were calculated using a 3-D filming setup. Foraging velocities ranged between 2 and 6 mm s(-1), while maximum velocities of up to 80 mm s(-1) were reached during escape responses. Foraging took place at Reynolds numbers between 2 and 6, indicating that viscous forces are considerable during this swimming mode. Inertial forces are much more important during escape responses, when Reynolds numbers of more than 100 are reached. High-speed film recordings at 500 frames s(-1) of the motion pattern of the feeding appendages and the escape movement of the swimming legs revealed that the two swimming modes are essentially very different. While foraging, the first three mouth appendages (antennae, mandibular palps and maxillules) create a backwards motion of water with a metachronal beating pattern. During escape movements the mouth appendages stop moving and the swimming legs beat in a very fast metachronal rhythm, accelerating a jet of water backwards. The large antennules are folded backwards, resulting in a streamlined body shape. Particle image velocimetry analysis of the flow around foraging and escaping copepods revealed that during foraging an asymmetrical vortex system is created on the ventral side of the animal. The feeding motion is steady over a long period of time. The rate of energy dissipation due to viscous friction relates directly to the energetic cost of the feeding current. During escape responses a vortex ring appears behind the animal, which dissipates over time. Several seconds after cessation of swimming leg movements, energy dissipation can still be measured. During escape responses the rate of energy dissipation due to viscous friction increases by up to two orders of magnitude compared to the rate when foraging.  (+info)

Spectral sensitivity of vertically migrating marine copepods. (5/284)

Light is a critical factor in the proximate basis of diel vertical migration (DVM) in zooplankton. A photobehavioral approach was used to examine the spectral sensitivity of four coastal species of calanoid copepod, representing a diversity of DVM patterns, to test whether species that migrate (nocturnal or reverse DVM) have response spectra that differ from non-migratory surface dwellers. The following species were given light stimuli at wavelengths from 350 to 740 nm, and their photoresponses were measured: Centropages typicus (nocturnal migrator), Calanopia americana (nocturnal migrator), Anomalocera ornata (reverse migrator), and Labidocera aestiva (non-migrator). Centropages typicus and A. ornata had peak responses at 500 and 520 nm, respectively, while Calanopia americana had maximum responses at 480 and 520 nm. Thus, the species that undergo DVM have peak photobehavioral responses at wavelengths corresponding to those available during twilight in coastal water, although the range of wavelengths to which they respond is variable. Non-migratory surface-dwelling L. aestiva had numerous response peaks over a broad spectral range, which may serve to maximize photon capture for vision in their broad-spectrum shallow-water habitat.  (+info)

Longitudinal processes in Salto Grande Reservoir (Americana, SP, Brazil) and its influence in the formation of compartment system. (6/284)

Studies on the longitudinal processes in reservoirs, involving physical, chemical and biological processes have been thoroughly appraised, suggesting the existence of a longitudinal organization controlled by the entrance and circulation of water which inserts modifications in the structuring of the system. To evaluate this effect, the Salto Grande reservoir (Americana, SP) was analyzed in 11 sampling stations in its longitudinal axis, in the rainy and dry seasons of 1997 considering the physical chemical and biological variables. Analyzing the results in agreement with the declining concentration degree of the river-barrage direction, a more significant correlation was verified in the dry period for total phosphorus (r2 = 0.86), dissolved total phosphate (r2 = 0.83), nitrite (r2 = 0.93), inorganic phosphate (r2 = 0.89), ammonium (r2 = 0.84) and suspended material (r2 = 0.85). In the rainy period, only nitrite (r2 = 0.90) and conductivity (r2 = 0.89) presented correlation with the distance of the dam, which demonstrates the effects of precipitation and the operational mechanism of the dam, as well as the distinction among the physical (sedimentation), chemical (oxidation) and biological (decomposition) processes in spatial heterogeneity of the system. These factors were decisive in the organization of these communities, with higher occurrence of rotifers and copepods in relation to cladocerans, the first ones being more abundant in the entrance of the Atibaia river, decreasing towards the dam direction, while copepods presented an inverse pattern. A distribution pattern similar to Copepoda was also verified for the Cladocera, evidencing a tendency to increase the density of organisms in the stations distant to the entrance of the Atibaia river, not being registered, however, a distribution gradient in the longitudinal axis, as observed for rotifers and copepods. In relation to the trophic degree a longitudinal gradient was also verified from eutrophic to oligotrophic depending on the location of the sampling station in relation to the longitudinal axis and period of analysis. The differences obtained, relating to the distribution of the environmental variables, demonstrate a characteristic pattern for reservoirs, with a longitudinal gradient in the sense river-barrage that inserts changes in the physical and chemical composition of the water, contributing to the differentiated establishing of biological communities.  (+info)

Susceptibility of rainbow trout Oncorhynchus mykiss, Atlantic salmon Salmo salar and coho salmon Oncorhynchus kisutch to experimental infection with sea lice Lepeophtheirus salmonis. (7/284)

Physiological, immunological and biochemical parameters of blood and mucus, as well as skin histology, were compared in 3 salmonid species (rainbow trout Oncorhynchus mykiss, Atlantic salmon Salmo salar and coho salmon O. kisutch) following experimental infection with sea lice Lepeophtheirus salmonis. The 3 salmonid species were cohabited in order to standardize initial infection conditions. Lice density was significantly reduced on coho salmon within 7 to 14 d, while lice persisted in higher numbers on rainbow trout and Atlantic salmon. Lice matured more slowly on coho salmon than on the other 2 species, and maturation was slightly slower on rainbow trout than on Atlantic salmon. Head kidney macrophages from infected Atlantic salmon had diminished respiratory burst and phagocytic capacity at 14 and 21 d post-infection (dpi), while infected rainbow trout macrophages had reduced respiratory burst and phagocytic capacities at 21 dpi, compared to controls. The slower development of lice, coupled with delayed suppression of immune parameters, suggests that rainbow trout are slightly more resistant to lice than Atlantic salmon. Infected rainbow trout and Atlantic salmon showed increases in mucus lysozyme activities at 1 dpi, which decreased over the rest of the study. Mucus lysozyme activities of infected rainbow trout, however, remained higher than controls over the entire period. Coho salmon lysozyme activities did not increase in infected fish until 21 dpi. Mucus alkaline phosphatase levels were also higher in infected Atlantic salmon compared to controls at 3 and 21 dpi. Low molecular weight (LMW) proteases increased in infected rainbow trout and Atlantic salmon between 14 and 21 dpi. Histological analysis of the outer epithelium revealed mucus cell hypertrophy in rainbow trout and Atlantic salmon following infection. Plasma cortisol, glucose, electrolyte and protein concentrations and hematocrit all remained within physiological limits for each species, with no differences occurring between infected and control fish. Our results demonstrate that significant differences in mucus biochemistry and numbers of L. salmonis occur between these species.  (+info)

Insights into fish host-parasite trophic relationships revealed by stable isotope analysis. (8/284)

Trophic relationships between 10 species of fish host and their associated nematode, cestode, and copepod parasites were investigated using stable isotopes of carbon and nitrogen. Nematodes and cestodes were consistently depleted in 15N with respect to their host, and such fractionation patterns are unlike those conventionally observed between consumers and their diets. Species of copepod parasite were sometimes depleted and sometimes enriched in 15N with respect to fish hosts, and this confirms earlier reports that the nature and magnitude of ectoparasite-host fractionations can vary. Significant differences in delta15N and delta13C were observed among fish tissues, and the isotopic signature of parasites did not always closely correspond to that of the tissue with which the parasite was found most closely associated, or on which the parasite was thought to be feeding. Several possible explanations are considered for such discrepancies, including selective feeding on specific amino acids or lipids, migration of the parasite among different fish tissues, changes in the metabolism of the parasite associated with life history and migration between different host animals.  (+info)

Hildebrandt, Nicole; Niehoff, Barbara; Sartoris, Franz-Josef (2014): Performance of the Arctic calanoid copepods Calanus glacialis and C. hyperboreus under elevated pCO2 and temperatures. PANGAEA, https://doi.org/10.1594/PANGAEA.834091, Supplement to: Hildebrandt, N et al. (2014): Long-term effects of elevated CO2 and temperature on the Arctic calanoid copepods Calanus glacialis and C. hyperboreus. Marine Pollution Bulletin, 80(1-2), 59-70, https://doi.org/10.1016/j.marpolbul.2014.01.050
The light intensity and spectral sensitivities of the calanoid copepod Acartia tonsa Dana were determined by measuring phototactic responses. Adult females
TY - JOUR. T1 - Spatial demography of Calanus finmarchicus in the Irminger Sea. AU - Heath, M. R.. AU - Rasmussen, J.. AU - Ahmed, Y.. AU - Allen, J.. AU - Anderson, C. I. H.. AU - Brierley, A. S.. AU - Brown, L.. AU - Bunker, A.. AU - Cook, K.. AU - Davidson, R.. AU - Fielding, S.. AU - Gurney, W. S. C.. AU - Harris, R.. AU - Hay, S.. AU - Henson, S.. AU - Hirst, A. G.. AU - Holliday, N. P.. AU - Ingvarsdottir, A.. AU - Irigoien, X.. AU - Lindeque, P.. AU - Mayor, Daniel Justin. AU - Montagnes, D.. AU - Moffat, C.. AU - Pollard, R.. AU - Richards, S.. AU - Saunders, R. A.. AU - Sidey, J.. AU - Smerdon, G.. AU - Speirs, D.. AU - Walsham, P.. AU - Waniek, J.. AU - Webster, L.. AU - Wilson, D.. PY - 2008/1. Y1 - 2008/1. N2 - Continuous Plankton Recorder data suggest that the Irminger Sea supports a major proportion of the surface-living population of the copepod Calanus finmarchicus in the northern North Atlantic, but there have been few studies of its population dynamics in the region. In this ...
Diapause plays a key role in the life cycle of high latitude zooplankton. During diapause animals avoid starving in winter by living in deep waters where metabolism is lower and met by lipid reserves. Global warming is therefore expected to shorten the maximum potential diapause duration by increasing metabolic rates and by reducing body size and lipid reserves. This will alter the phenology of zooplankton, impact higher trophic levels and disrupt biological carbon pumps. Here we project the impacts of climate change on the key North Atlantic copepod Calanus finmarchicus under IPCC RCP 8.5. Potential diapause duration is modelled in relation to body size and overwintering temperature. The projections show pronounced geographic variations. Potential diapause duration reduces by more than 30% in the Western Atlantic, whereas in the key overwintering centre of the Norwegian Sea it changes only marginally. Surface temperature rises, which reduce body size and lipid reserves, will have a similar ...
We studied the seasonal lipid dynamics of Calanus finmarchicus from Loch Etive, a semi-enclosed fjordic environment on the west coast of Scotland, in relation to the diapause behavior of this species. Levels of total lipid and triacylglycerol in individual copepodid stage V (CVs) exhibited clear seasonal trends, with highest levels in June and progressively decreasing through late summer to winter. Wax esters in CVs were more variable, but followed a similar pattern. An index of the level of unsaturation of wax esters, effectively an indicator of the levels of polyunsaturated fatty acids in the wax ester reserves, were highest in midsummer and declined progressively through autumn and winter. Fatty acid analysis of total lipid in the CVs confirmed that the amounts of polyunsaturated fatty acids in the wax esters decreased, while amounts of saturated and monounsaturated fatty acids remained comparatively stable. Polyunsaturated wax esters are selectively catabolized by C. finmarchicus during ...
Kattner, G. and Krause, M. (1987): Changes in lipids during the development of Calanus finmarchicus s.l. from copepodid I to adult. , Marine Biology ...
Scanning electron micrograph (SEM) of Marine calanoid copepod (Euchaeta sp.). Euchaeta is a genus of the calanoid copepods in the family Euchaetidae (order Calanoida). Calanoida is an order of copepods that can live in both marine and freshwater. Calanoid copepods are dominant in the plankton in many parts of the worlds oceans (55%-95% of plankton). They are very important in the aquatic food chain. Commercial fish are dependent on calanoid copepods (larval or adult forms). Magnification x7 when shortest axis printed at 25 millimetres. - Stock Image C037/0487
The efficacy of a range of anti-parasitic chemotherapeutic agents against the salmon louse Lepeophtheirus salmonis following topical application was studied in vitro and in vivo. In general, adult and preadult lice were susceptible to a wide range of compounds with dose rates, following 1 hour exposures, ranging several orders of magnitude (10.0 - 0.001 mg/L). Overall the pyrethroid compounds which were tested were found to have the widest therapeutic ratios, indicating the potential of this group of chemotherapeutants for sea lice control. Resistance to the organophosphorus (OP) compounds dichlorvos and azamethiphos was detected in isolated populations of lice. Field trials with azamethiphos indicated that the compound was highly efficacious against sensitive lice (@ 0.1 mg/L; however, where resistance was present, efficacy (@ 0.2 mg/L) was highly variable. When used at the above dose rates, azamethiphos was found to be well tolerated by fish as indicated by a lack of significant brain ...
Ohman, M. D. and Hirche, H. J. (2001): Density-dependent egg mortality in Calanus finmarchicus , ICES/GLOBEC Newsletter,8, December ...
Outcomes of infections with the salmon louse Lepeophtheirus salmonis vary considerably among its natural hosts (Salmo, Oncorhynchus spp.). Host-parasite interactions range from weak to strong host responses accompanied by high to low parasite abundances, respectively. Parasite behavioral studies indicate that the louse prefers the host Atlantic Salmon (Salmo salar), which is characterized by a weak immune response, and that this results in enhanced parasite reproduction and growth rates. Furthermore, parasite-derived immunosuppressive molecules (e.g., proteases) have been detected at higher amounts in response to the mucus of Atlantic Salmon relative to Coho Salmon (Oncorhynchus kisutch). However, the host-specific responses of the salmon louse have not been well characterized in either of the genetically distinct sub-species that occur in the Atlantic and Pacific Oceans. We assessed and compared the transcriptomic feeding response of the Pacific salmon louse (L. salmonis oncorhynchi,) while
We present an accurate, fast, simple and non-destructive photographic method to estimate wax ester and lipid content in single individuals of the calanoid copepod genus Calanus and test this method against gas-chromatographic lipid measurements ...
Marine calanoid copepod Acartia tonsa of known age are placed into test vessels containing a series of concentrations of the test material in water for 48 hours. The animals are observed after 24 and 48 hours and the number of mortalities in each vessel are recorded. EC50 values, NOECs and LOECs are estimated.. ...
TY - JOUR. T1 - Taxonomic and systematic assessment of planktonic copepods using mitochondrial COI sequence variation and competitive, species-specific PCR. AU - Bucklin, A.. AU - Guarnieri, M.. AU - Hill, R. S.. AU - Bentley, A. M.. AU - Kaartvedt, Stein. PY - 1999/5/1. Y1 - 1999/5/1. N2 - Accurate taxonomic identification of species at all life stages is critical to understand and predict the processes that together determine marine community dynamics. However, zooplankton assemblages may include numerous sibling and congeneric species distinguished by subtle morphological characteristics. Molecular systematic databases, including DNA sequences of homologous gene regions for selected taxonomic groups, allow the design of rapid protocols to determine species diversity and identify individuals. In this study, the DNA sequence of a 300 base-pair region of the mitochondrial cytochrome oxidase I (COI) gene was determined for eight species of three genera of calanoid copepods: Calanus finmarchicus, ...
This set includes: 2 x Tig Pods - 3000+ Live Single Species Copepods (Tigriopus Californicus) 16 oz - Algae Barn 2 x OceanMagik - Live 4 Species Phytoplankton Blend (Nano, Tet, Iso & Thal) 16 oz - Algae Barn Tig Pods - Tigriopus CalifornicusAKA Tiger Pods, as their scientific name sugge
ABSTRACT The diploid chromosome number 2n = 24 has been established in the harpacticoid copepod Tigriopus sp. coming from Kerguelen Island, while the population of Tigriopus inhabiting Crozet Island possesses the diploid number 2n = 22. The two populations differ also in homogeneity of the karyotype, thereby further supporting the hypothesis that these two populations belong to different species.
Walter, T. Chad (2013). Tigriopus fulvus adriatica Douwe, 1913. In: Walter, T.C. & Boxshall, G. (2017). World of Copepods database. Accessed at http://www.marinespecies.org/copepoda/aphia.php?p=taxdetails&id=363760 on 2017-12- ...
original description Chullasorn S., H.U. Dahms & P. Klangsina. (2013). A new species of Tigriopus (Copepoda: Harpacticoida: Harpacticidae) from Thailand with a key to the species of the genus. Journal of Natural History 47(5-12):427-447. , available online at https://doi.org/10.1080/00222933.2012.757660 [details] Available for editors ...
Tigriopus kingsejongensis is a free-living intertidal copepod endemic to the Antarctic. The T. kingsejongensis genome has been recently published and provides an interesting example of cold adaptation [1]. The genome annotation was done using the Maker pipeline. The T. kingsejongensis genome and annotation have been imported into LiceBase from public data provided with the original publication and orthologs between the species have been computed by BlastP based on the automatic annotations. 1: Kang S, Ahn DH, Lee JH, Lee SG, Shin SC, Lee J, Min GS, Lee H, Kim HW, Kim S, Park H. The genome of the Antarctic-endemic copepod, Tigriopus kingsejongensis. Gigascience. 2017 Jan 1;6(1):1-9. doi: 10.1093/gigascience/giw010. PubMed PMID: 28369352; PubMed Central PMCID: PMC5467011. ...
The oil exploration and search for new oil production fields is expanding further north and has reached the Arctic. Oil drilling activities release large amounts of produced water (PW) to the marine environment and sub-lethal effects on biota cannot be excluded. The polycyclic aromatic hydrocarbons (PAHs) present in PW have previously been shown to exhibit negative effects on growth, development and survival of aquatic organisms. The Arctic copepod Calanus glacialis is an abundant zooplankton species and holds a key position in the energy transfer from primary production to higher trophic levels. C. glacialis accumulates large volumes of lipids during late developmental stages which makes it prone to the uptake of lipophilic oil components. This study assesses the potential impact of PW-related PAHs on the metabolism of C. glacialis. In a semi-static setup, stage V C. glacialis copepodites from Kongsfjorden, Svalbard were exposed to the water soluble fraction of 11 selected PAHs (ΣPAH 7,90 µg ...
The salmon louse (Lepeophtheirus salmonis) is an ectoparasitic copepod feeding on skin, mucous and blood from salmonid hosts. Recently it was shown that L. salmonis infections in farmed fish induce epizootics in wild fish [1,2]. The life cycle of L.salmonis consists of 8 developmental stages separated by ecdysis [3,4] and after the final molt, females develop into mature adults that continuously produce eggs for life. The first free-living larvae (naupli I) hatch directly from egg-strings attached to adult females and all three larval stages (naupli I, naupli II and the infectious copepidid stage) can be transported by the ocean currents over large distances depending on hydrographical conditions [5]. After host settlement the infectious copepodids stage molt into chalimus. The two chalimus stages, all separated by molting, are anchored to the host by a frontal filament [6], which restricts the feeding area. However, in the succeeding pre-ad I and -II and adult stages the salmon louse can move ...
TY - JOUR. T1 - Unsteady motion: escape jumps in planktonic copepods, their kinematics and energetics. AU - Kiørboe, Thomas. AU - Andersen, Anders Peter. AU - Langlois, Vincent J.. AU - Jakobsen, Hans Henrik. PY - 2010. Y1 - 2010. N2 - We describe the kinematics of escape jumps in three species of 0.3-3.0 mm-sized planktonic copepods. We find similar kinematics between species with periodically alternating power strokes and passive coasting and a resulting highly fluctuating escape velocity. By direct numerical simulations, we estimate the force and power output needed to accelerate and overcome drag. Both are very high compared with those of other organisms, as are the escape velocities in comparison to startle velocities of other aquatic animals. Thus, the maximum weight-specific force, which for muscle motors of other animals has been found to be near constant at 57 N (kg muscle)−1, is more than an order of magnitude higher for the escaping copepods. We argue that this is feasible because ...
2020. Sperfeld, E., Nilssen, J.P., Rinehart, S., Schwenk, K. and Hessen, D.O. (2020) Ecology of predator-induced morphological defense traits in Daphnia longispina (Cladocera, Arthropoda). Oecologia.. 2019. Langer, J.A.F., Meunier, C.L., Ecker, U., Horn, H.G., Schwenk, K. and Boersma, M. (2019) Acclimation and adaptation of the coastal calanoid copepod Acartia tonsa to ocean acidification: a long-term laboratory investigation. Marine Ecology Progress Series 619, 35-51.. Theissinger, K., Roder, N., Allgeier, S., Beermann, A.J., Bruhl, C.A., Friedrich, A., Michiels, S. and Schwenk, K. (2019) Mosquito control actions affect chironomid diversity in temporary wetlands of the Upper Rhine Valley. Mol Ecol 28, 4300-4316.. van den Berg-Stein, S., Thielsch, A., Schwenk, K. and Hahn, H.-J. (2019) StygoTracing - ein biologisches Tracerverfahren für Grund- und Trinkwasser. KW Korrespondenz Wasserwirtschaft 12, 217-223.. 2018. Herrmann, M., Ravindran, S.P., Schwenk, K. and Cordellier, M. (2018) Population ...
대전광역시 유성구 대학로 245 한국과학기술정보연구원TEL : 042.869.1234 서울시 동대문구 회기로 66NDSL고객센터 : 080.969.4114E-mail : [email protected] 대표자 : 한선화사업자등록번호 : 205-82-04043 ...
ABSTRACT: Fine-scale water column structure was mimicked in a laboratory plane jet flume to examine responses of the calanoid copepods Temora longicornis and Acartia tonsa to layers consisting of a velocity gradient, density gradient, phytoplankton exudates and food (phytoplankton). Copepods were exposed to isolated layers and combinations of cues as defined by in situ conditions. Behaviors elicited by the velocity gradient and chemical exudate layers included increased swimming speed and turn frequency consistent with excited area-restricted search behavior, which led to increased proportional residence time in the layers. Both species had significant responses to isolated layers of velocity gradients and chemical exudates, with T. longicornis responding more intensely to chemical cues than velocity gradients and A. tonsa responding equally to both. Combined fluid mechanical and chemical cues elicited species-specific responses. For T. longicornis, chemical presence induced responses that ...
Thermo Scientific™ Gaussia Luciferase Reporter Assay Vectors pMCS-Gaussia Luc Vector Thermo Scientific™ Gaussia Luciferase Reporter Assay Vectors...
Thermo Scientific™ Pierce™ Gaussia Luciferase Flash Assay Kit 100-rxn kit Thermo Scientific™ Pierce™ Gaussia Luciferase Flash Assay...
Use the simple Search box at the top of the page or the Advanced Search linked from the top of the page to find book and journal content. Refine results with the filtering options on the left side of the Advanced Search page or on your search results page. Click the Browse box to see a selection of books and journals by: Research Area, Titles A-Z, Publisher, Books only, or Journals only.. ...
The effects of Lepeophtheirus salmonis infections on the stress response and immunological status of Atlantic salmon (Salmo salar)
ABSTRACT: During mid-May-early June 1997 observations of hydrography, phytoplankton and nitrate concentrations, and abundance and stage distribution of Calanus finmarchicus populations were made in the Labrador Sea and south of Greenland. Egg production rates were also measured for isolated C. finmarchicus females. Surface nitrate and integrated phytoplankton concentrations indicated that, in the deep water, the phytoplankton bloom had ended in the north and east, was in progress in the north central Labrador Sea and near the basin margins, and had not yet become established in an area stretching from the central Labrador Sea to the south of Greenland. C. finmarchicus egg production rates and stage distributions at stations in the 3 areas designated as early, mid- and late/post-bloom zones, suggested that development rates of the overwintered G0 generation into mature adults (females and males) were probably low before the bloom, but accelerated during its development. Individual and areal rates ...
We developed a Gaussia luciferase (Gluc) reporter replicon of West Nile virus (WNV) and used it to quantify viral translation and RNA replication. The advantage of the Gluc replicon is that Gaussia luciferase is secreted into the culture medium from cells transfected with Gluc replicon RNA, and the medium can be assayed directly for luciferase activity. Using a known Flavivirus inhibitor (NITD008), we demonstrated that the Gluc-WNV replicon could be used for antiviral screening. The Gluc-WNV-Rep will be useful for research in antiviral drug development programs, as well as for studying viral replication and pathogenesis of WNV.
Phytoplankton color index from the Continuous Plankton Recorder transect across the Gulf of Maine is shown in the top panel. The decrease in spring chlorophyll concentration observed from satellites is also evident in the in situ data. Extremely low color indices were observed in the 1960s and early 1970s. There was then a rapid increase until about 1985 when a gradual decrease started. The decrease in color index seemed to accelerate in 2000 and low levels have been observed since. Abundances of two species of copepods from the Gulf of Maine Continuous Plankton Recorder transect are shown. Adult Calanus finmarchicus, which is a key indicator species for ecosystem status in the Gulf of Maine, has recently increases after a period of lower values in the 1990s. Smaller zooplankton, as exemplified by Oithona, have decreased after a period of higher values in the 1990s. These changes are indicators of shifts in community structure from larger bodied copepods, including Calanus in the 1980s, to ...
However, the actual feeding mechanisms employed by different zooplankters exert an overriding primary control that of food particle acquisition. It is in this context that we primarily attribute Ceratiums influence on zooplankton composition favouring Bosmina and calanoid copepods, while inhibiting Daphnia and Moina (as explained below).. Bosmina has been characterised as an undergrowth taxon able to find and feed on diffuse small food particles (including bacteria) in a nutritional environment overwhelmed by large, mostly inedible particles (Sommer et al., 1986). Similarly, the raptorial feeding mechanism of calanoid (and cyclopoid) copepods allows them to very selectively locate scarce suitable food particles (Koehl and Strickler, 1981; Strickler, 1984; Vanderploeg and Paffenhofer, 1985; Paffenhofer and Lewis, 1990; Brandl, 1998). Conversely, Daphnia employs non-selective bulk filtration, a mode of food collection that greatly compromises it when suspended particles are predominantly ...
Marine planktonic copepods of the order Calanoida are central to the ecology and productivity of high latitude ecosystems, representing the interface between primary producers and fish. These animals typically undertake a seasonal vertical migration into the deep sea, where they remain dormant for periods of between three and nine months. Descending copepods are subject to low temperatures and increased hydrostatic pressures. Nothing is known about how these organisms adapt their membranes to these environmental stressors. We collected copepods (Calanoides acutus) from the Southern Ocean at depth horizons ranging from surface waters down to 1000 m. Temperature and/or pressure both had significant, additive effects on the overall composition of the membrane phospholipid fatty acids (PLFAs) in C. acutus. The most prominent constituent of the PLFAs, the polyunsaturated fatty acid docosahexanoic acid [DHA - 22:6(n-3)], was affected by a significant interaction between temperature and pressure. This ...
The present study provides the first phylogenomic evidence to support the monophyletic origin of four major orders of copepods and the group of podopleans. The monophyletic status of Copepoda has been broadly accepted by both morphological [5, 14] and large-scale phylogenomic analyses [28-30]. Although this study does not include all copepod orders, there can be no doubt of the monophyly of copepods. The subclass Copepoda consists of two infraclasses, Progymnoplea and Neocopepoda, suggested by Huys and Boxshall [5]. The infraclass Neocopepoda can be further divided into two superorder groups, Gymnoplea and Podoplea (Fig. 1). The concept of this classification was proposed by Giesbrecht [67] and became generally accepted [5, 12, 68]. However, the naupliar musculature and the molecular phylogeny using partial nuclear 28S rRNA gene (a total aligned sequence length of 484 bp from the D9/D10 region) (Fig. 2A) showed conflicting results and suggested a possible paraphyletic origin of podopleans [15, ...
Salmonid aquaculture is an important industry on both sides of the North Atlantic, contributing to the local societies and producing highly demanded marine food. However, the industry has its environmental challenges, such as the ectoparasitic salmon louse (Lepeophtheirus salmonis). The salmon louse occurs naturally in the North Atlantic wherever there are wild salmonids. With the onset of salmonid farming in open net pens, the parasite obtained access to hosts held at high densities throughout the year. Fish farmers around the North Atlantic have since the 1970s used chemicals to control the number of lice in the fish pens. However, the salmon louse has developed resistance to four out of five chemical groups that have been available, forcing the industry to look for alternative non-chemical methods.. A fascinating aspect with the salmon louse is that there appears to be only one, pan-Atlantic, population. Because of the migratory life history of one of the main hosts, the wild Atlantic salmon, ...
TY - JOUR. T1 - Achiasmatic meiosis and complex heterozygosity in female cyclopoid copepods (Copepoda, Crustacea). AU - Chinnappa, C. C.. AU - Victor, Reginald. PY - 1979/1. Y1 - 1979/1. N2 - In Mesocyclops edax S.A. Forbes, 2n=14, a North American copepod, the females are heterozygous for several interchanges leading to the formation of large rings of chromosomes (rings of 14, or of 12 plus 1 bivalent) at meiotic metaphase, comparable to those of the plant Oenothera, although no chiasmata are present. The chromosomes are more or less metacentric and have large terminal H-segments. In the rings homologous arms are held together by connecting fibers which insert close to the euchromatin-heterochromatin junctions. Coordinated orientation of the zigzag type seems to be the role.. AB - In Mesocyclops edax S.A. Forbes, 2n=14, a North American copepod, the females are heterozygous for several interchanges leading to the formation of large rings of chromosomes (rings of 14, or of 12 plus 1 bivalent) at ...
JARAMILLO, R et al. Polysiphonia spp as epibiont of Caligus rogercresseyi (Crustacea: Copepoda) in Salmo salar farming centers. Arch. med. vet. [online]. 2016, vol.48, n.3, pp.321-324. ISSN 0301-732X. http://dx.doi.org/10.4067/S0301-732X2016000300013.. The association between Polysiphonia spp and ovigerous females of Caligus rogercresseyi is analysed. Females carrying egg sacs exhibited individuals of Polysiphonia spp externally attached to the cuticle of both dorsal cephalothorax and abdomen by a mounting disk without penetrating the tissues.. Palavras-chave : Polysiphonia; epibiont; Caligus; Salmo. ...
Wold, Anette; Darnis, Gerald; Søreide, Janne E; Leu, Eva; Philippe, Benoit; Fortier, Louis; Poulin, Michel; Kattner, Gerhard; Graeve, Martin; Falk-Petersen, Stig (2011): Diatom abundance and fatty acid composition of ice algae and of Calanus glacialis in samples obtained in 2008 in the eastern Beaufort Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.817986, Supplement to: Wold, A et al. (2011): Life strategy and diet of Calanus glacialis during the winter-spring transition in Amundsen Gulf, south-eastern Beaufort Sea. Polar Biology, 34(12), 1929-1946, https://doi.org/10.1007/s00300-011-1062-6
1. Sodium uptake and loss rates are given for three gammarids acclimatized to media ranging from fresh water to undiluted sea water.. 2. In Gammarus zaddachi and G. tigrinus the sodium transporting system at the body surface is half-saturated at an external concentration of about 1 mM/l. and fully saturated at about 10 mM/l. sodium. In Marinogammarus finmarchicus the respective concentrations are six to ten times higher.. 3. M. finmarchicus is more permeable to water and salts than G. zaddachi and G. tigrinus. Estimated urine flow rates were equivalent to 6.5% body weight/hr./ osmole gradient at 10°C. in M. finmarchicus and 2.8% body weight/hr./osmole gradient in G. zaddachi. The permeability of the body surface to outward diffusion of sodium was four times higher in M. finmarchicus, but sodium losses across the body surface represent at least 50% of the total losses in both M. finmarchicus and G. zaddachi.. 4. Calculations suggest that G. zaddachi produces urine slightly hypotonic to the blood ...
Assessing the impact of global warming on the food web of the North Atlantic will require difficult-to-obtain physiological data on a key copepod crustacean, Calanus finmarchicus. The de novo transcriptome presented here represents a new resource for acquiring such data. It was produced from multiplexed gene libraries using RNA collected from six developmental stages: embryo, early nauplius (NI-II), late nauplius (NV-VI), early copepodite (CI-II), late copepodite (CV) and adult (CVI) female. Over 400,000,000 paired-end reads (100 base-pairs long) were sequenced on an Illumina instrument, and assembled into 206,041 contigs using Trinity software. Coverage was estimated to be at least 65%. A reference transcriptome comprising 96,090 unique components (
There has been a common understanding that wax esters are poorly absorbed by humans, partly due to outbreaks of the purgative effect named keriorrhea, associated with consumption of oilfish (Ruvettus pretiosus) and escolar (Lepdocybium flavobrunneum). Fillets from these fish species contain up to 20% fat, where 90% of the fat comes as wax esters, resulting in a typical intake of more than 30 000 mg wax esters from one single meal. Orange roughy (Hoplostethus atlanticus) is an attractive food fish with 5,5% fat, where 90% of the fat comes as wax esters. Consumption of this fish gives no unpleasant adverse effects, most likely due to the relatively low fat content that provides approximately 10 000 mg wax ester per 200 grams serving of fish.. In 2015 a randomized, two-period crossover human study, showed that EPA and DHA from oil extracted from the small crustacean Calanus finmarchicus was highly bioavailable and the study concluded that oil from C. finmarchicus could serve as a relevant source of ...
Young, P., Kibenge, F. S. B., & Burka, J. F. (2007). Binding characteristics of emamectin benzoate to GABA-and glutamate-gated chloride channels of sea lice (Lepeophtheirus salmonis) ...
Durbin E, Teegarden G, Campbell R, Cembella A, Baumgartner MF, Mate B. North Atlantic right whales, Eubalaena glacialis, exposed to paralytic shellfish poisoning (PSP) toxins via a zooplankton vector, Calanus finmarchicus. Harmful Algae. 2002 ;1:243-251. ...
Anthropogenically driven climate change not only results in rising of sea temperature but also leads to more frequent and longer-lasting cold and heat waves. Meanwhile, coastal marine ecosystems are constantly challenged by increasing threats of chemical pollution. Temperature and chemical stressors can jointly affect the livelihood of marine organisms, but their combined effects are still poorly understood. Therefore, this study aimed to investigate the effects of thermal stress and chemical exposure on the marine medaka Oryzias melastigma, copepod Tigriopus japonicus and rotifer Brachionus koreanus. The four selected chemical contaminants included copper sulphate pentahydrate (Cu), dichlorophenyltrichloroethane (DDT), triphenyltin chloride and copper pyrithione. It was hypothesized that marine organisms are more susceptible to chemical exposure at both cold and warm extremes. In vivo acute ecotoxicity tests were conducted over a wide temperature range to ascertain the relationship between ...
Blanco-Bercial, L., Cornils, A., Copley, N., Bucklin, A. 2014. DNA barcoding of marine copepods: assessment of analytical approaches to species identification. PLOS Currents Tree of Life. 2014 Jun 23. Edition 1 (doi:10.1371/currents.tol.cdf8b74881f87e3b01d56b43791626d2). More than 2,500 species of copepods (Class Maxillopoda; Subclass Copepoda) occur in the marine planktonic environment. The exceptional morphological conservation of the group, with numerous sibling species groups, makes the identification of species challenging, even for expert taxonomists. Molecular approaches to species identification have allowed rapid detection, discrimination, and identification of species based on DNA sequencing of single specimens and environmental samples. Despite the recent development of diverse genetic and genomic markers, the barcode region of the mitochondrial cytochrome c oxidase subunit I (COI) gene remains a useful and - in some cases - unequaled diagnostic character for species-level ...
Zooplankton, fish and other marine organisms move between the surface of the oceans and deeper waters every day. Zooplankton typically reside at depths during daytime to avoid predation from visual organisms. At night, zooplankton migrate to the surface to feed on small phytoplankton, and fish and other organisms feeding on zooplankton follow their prey to the surface. This movement is called diel vertical migration and is believed to be the largest natural daily movement of biomass of the planet, only potentially exceeded by human commuters.. During his PhD study at DTU Aqua, Jérôme Pinti has developed a method that can improve our understanding of the optimal vertical migration patterns. The method relies on game theory, where organisms are seen as players trying to optimize their fitness-a measure of how well they are doing-considering the behaviour of all other organisms.. Jérôme Pinti has used the method to model, among others, a whole pelagic community-from mesozooplankton to ...
During a survey of the zooplankton community of Bahía Amuay, Venezuelan Caribbean, specimens of an undescribed species of Caligus Müller were collected. It resembles C. xystercus Cressey and C. ocyurus Cressey, both known only from the Caribbean Sea. The new species can be distinguished from these and other congeners by a combination of characters including the armature of legs 1 and 4, but mainly by its unique female genital complex. This is the first species of Caligus described from Venezuela. The species is described in full and a key to the species of the genus recorded in Venezuela is provided.
From September 2000 to June 2003, a community-based program for dengue control using local predacious copepods of the genus Mesocyclops was conducted in three rural communes in the central Vietnam provinces of Quang Nam, Quang Ngai, and Khanh Hoa. Post-project, three subsequent entomologic surveys were conducted until March 2004. The number of households and residents in the communes were 5,913 and 27,167, respectively, and dengue notification rates for these communes from 1996 were as high as 2,418.5 per 100,000 persons. Following knowledge, attitude, and practice evaluations, surveys of water storage containers indicated that Mesocyclops spp. already occurred in 3-17% and that large tanks up to 2,000 liters, 130-300-liter jars, wells, and some 220-liter metal drums were the most productive habitats for Aedes aegypti. With technical support, the programs were driven by communal management committees, health collaborators, schoolteachers, and pupils. From quantitative estimates of the standing crop of
Das Vorkommen von Pseudodiaptomus marinus Sato, 1913, ist für Port Louis auf der Insel Mauritius festgestelt worden. Die Art wird beschrieben und hier zum ersten Mal detailliert abgebildet. Sie steht in Beziehung zu einer orientalischen Gruppe von Arten derselben Gattung. Ihres abnormalen zoogeographischen Verhaltens wegen wird angenommen, dass die Art durch Schiffe von Japan nach Mauritius transportiert worden ist. Intraspezifische Variationen zwischen Exemplaren von verschiedenen Lokalitäten werden beschrieben.
Friday, January 18, 2013, 05:20 (GMT + 9) A new study provides unprecedented evidence of viral infections in copepods, or tiny marine crustaceans. Viruses could account for part of the up to 35 per cent of the zooplanktons mortalities, whose causes are currently unknown but suspected to be harmful algae, environmental stressors, parasites and diseases. Researchers used genomic techniques to support the hypothesis that viral infections are a major cause of copepod deaths.. The study was published in the Proceedings of the National Academies of Science.. This is the first evidence of viruses in marine zooplankton, said Ian Hewson, Cornell University assistant professor of microbiology and senior author of the paper. Copepods are critical in oceanic food webs and ocean carbon cycling, which helps regulate the Earths climate. They also consume most of the oceans phytoplankton, which seize about half of the carbon dioxide pulled from the atmosphere and fixed in plant cells. As copepods defecate ...
Redescription of Adults and Description of Copepodid Development of Dermatomyson nigripes (Brady & Robertson, 1876) and Asterocheres lilljeborgi Boeck, 1859 (Copepoda: Siphonostomatoida: Asterocheridae ...
Reliability of genomic selection (GS) models was tested in an admixed population of Atlantic salmon, originating from crossing of several wild subpopulations. The models included ordinary genomic BLUP models (GBLUP), using genome-wide SNP markers of varying densities (1 to 220k), a genomic identity-by-descent model (IBD-GS), using linkage analysis of sparse genome-wide markers, as well as a classical pedigree-based model. Reliabilities of the models were compared through 5-fold cross-validation. The traits studied were salmon lice (Lepeophtheirus salmonis) resistance (LR), measured as (log) density on the skin and fillet color (FC), with respective estimated heritabilities of 0.14 and 0.43. All genomic models outperformed the classical pedigree-based model, for both traits and at all marker densities. However, the relative improvement differed considerably between traits, models and marker densities. For the highly heritable FC, the IBD-GS had similar reliability as GBLUP at high marker densities (|22k)
Control of the of the salmon louse, Lepeophtheirus salmonis, is considered as a major problem for the salmon farming industry in Norway, as the parasite affects both farmed and wild salmonids. As a result of this challenge, a research centre for study of the biology of the louse has been established... ...
The surface temperature (within 1 m) at the fixed hydrographic station in Sognesjøen (outer region of Sognefjorden) during January and February was 6.4 and 3.5°C in 2013 and 6.1 and 5.7°C in 2014 (6.3 and 5.5°C on average for the period 2000− 2012, www.imr.no), respectively.. Consequently, the temperature was well below temperatures that routinely occur during the summer and early autumn months in Sognefjorden (July average = 15.4°C).. According to the model by Stien et al. (2005), it will take more than 28 d for individuals to reach the chalimus 1 stage at 5.7°C. This suggests that the production of the main proportion of the lice observed on the fish occurred in January or February. Natural salmon lice intensity during winter months on sea trout is usually not above 3 lice per fish, with a prevalence seldom exceeding 20% (Schram et al. 1998, Rikardsen 2004).. Consequently, the prevalence and abundance observed here are above normal and can be defined as a winter epizootic.. One likely ...
The aim of my project is to investigate the ecophysiology and vertical migration patterns of different phytoplankton species from the Gippsland Lakes. More specifically I will be studying the influence that vertical migration has on nutrient redistribution, species succession and competition ...
To evaluate the effects of different anthropogenic activities on zooplankton and the pelagic ecosystem, we conducted seasonal cruises in 2010 to assess spatial heterogeneity among the mesozooplankton communities of Xiangshan Bay, a subtropical semi-enclosed bay in China. The evaluation included five different areas: a kelp farm, an oyster farm, a fish farm, the thermal discharge area of a power plant, and an artificial reef, and we aimed to identify whether anthropogenic activities dominated spatial variation in the mesozooplankton communities. The results demonstrated clear spatial heterogeneity among the mesozooplankton communities of the studied areas, dominantly driven by natural hydrographic properties, except in the area near the thermal discharge outlet of the power station. In the outlet area, thermal shock caused by the discharge influenced the mesozooplankton community by decreasing abundance and biomass throughout the four seasons, even causing a shift in the dominant species near the ...
Wild Norwegian salmon are members of an ancient species that heads downriver early in its life cycle, swimming through Norways famous fjords, and out to saltwater feeding grounds, before returning to their native rivers to spawn.. In recent years, however, the wild salmon population has more than halved, partly because of the spread of sea lice, parasites that feast on the mucus and skin of the fish before moving on to the muscle and fat, making the fish vulnerable to infections and sometimes killing them.. Sea lice, like the salmon, have existed in the ocean for eons but have emerged as a huge problem for the fish farms. They multiply there in such numbers that they kill farmed fish and endanger young wild salmon as they pass the pens on their way to the open sea.. The lice problem is so bad that the worldwide supply of salmon on sale, the overwhelming majority of which is farmed, fell significantly last year, with Norway, the largest producer, hit especially hard.. To contain the problem, a ...
Thamnocephalus cerebrinoxius n. g., n. sp. is a sphyriid copepod found in the nasal capsules of a small enzootic west African shark, Leptocharias smithii (Leptochariidae), caught off the coast of Sene
The morphology and host-specificity of the histophagous apostome ciliate Vampy- rophrya pelagica infecting pelagic copepods in the Seto Inland Sea, Japan, were intensively investi- gated. Four stages were reconfirmed in the life cycle of the ciliate. A mature cell within the phoront bears cilia ready for quick excystation, and unique lamellar structures in the cytoplasm appear to be precursors of food vacuole membranes. These lamellar structures completely disappear in the fully grown trophont. The phoronts were attached to the ventral surface of the copepod prosome or legs, but were almost totally absent on the urosome. The number of phoronts per copepod was up to 43 for the adult female of Paracalanus parvus s.l. Phoront attachment was found irrespective of develop- mental stage and sex of P. parvus s.l., although the early copepodid stages were less frequently infected than the later stages, and the adult female was more intensively infected than the adult male. There was a marked seasonal change in
We test if the establishment of salmon farms in remote coastal areas had a significant impact on poverty reduction in the period 1992-2002 in Los Lagos Region, Chile.. We employ impact assessment techniques using as control group people residing in geographic areas where no salmon farms were established during the period studied. Poverty incidence is estimated using small-area models at the household level that combines socioeconomic surveys with census data. Our results show that poverty decreased considerably more in localities where salmon farms were installed than in localities without salmon farms. We identify the distances between localities and salmon farms where this impact was significant. Our findings contribute to the debate on the socioeconomic effects of aquaculture for capital-intensive, international market-oriented industries.. ...
Barreto F.S, Burton RS. 2013. Elevated oxidative damage is correlated with reduced fitness in interpopulation hybrids of a marine copepod. Proceedings of the Royal Society B-Biological Sciences. 280 ...
The Egg Production Rate of Acartia (Acartiura) clausi Giesbrecht, 1889 (Copepoda) in Sinop Peninsula (Southern Black Sea) Funda Üstün , Levent Bat Abstract Full Text:PDF Recommended articles Mail to Author How to Cite Effect of Three Different Anticoagulants and Storage Time on Haematological Parameters of Mugil cephalus (Linneaus, 1758) Caterina Faggio , Francesca Arfuso , Giuseppe Piccione , Alessandro Zumbo , Francesco Fazio Abstract Full Text:PDF Recommended articles Mail to Author How to Cite Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea Sabri Bilgin , Burak Taşçı , Hatice Bal Abstract Full Text:PDF Recommended articles Mail to Author How to Cite Effects of Supplementation Coated Lysine and Methionine in Mixture Protein Diets on Growth Performance, Digestibility and Serum Biochemical Indices of Juvenile Black Sea Bream, Acanthopagrus schlegelii Jing Lu , Ying Hua , Wen-zhong Fu , Fan Zhou , Bin-bin Yang , Jin-xing Xiao ...
Figure 2. Mean number of copepod species and salinity recorded at two sites over the salinity gradient of the Río de la Plata: Montevideo and Bahía Maldonado (Punta del Este). Data from Montevideo are from Cervetto et al. (1988) and data from Bahía Maldonado are from Milstein & Juanico (1985). Figura 2. Número promedio de especies de copépodos y salinidad registrados en dos sitios a lo largo del gradiente salino del Río de la Plata: Montevideo y Bahía Maldonado. Los datos de Montevideo son tomados de Cervetto et al. (1988) y los de Bahía Maldonado son tomados de Milstein & Juanico (1985). According to the synthesis by Odebrecht & García (1997) and Odebrecht & Castello (2000), continental runoff (from Lagoa dos Patos and RdlP) and turbulence over shallow waters control nutrient inputs to the inner shelf (Ciotti et al. 1995, Odebrecht & Djurfeldt 1996). This influences phytoplankton development which, during the productive season, reduces the nutrient levels seaward of the chlorophyll ...
The first scientific evidence that large numbers of wild salmon are becoming infected with piscine reovirus (PRV) through exposure to salmon farms was published this week in the scientific journal Public Library of Science One. The effect of exposure to farmed salmon on piscine orthoreovirus [reovirus] infection and fitness in wild Pacific salmon in British Columbia, Canada
The name plankton is derived from the Greek adjective πλαγκτός - planktos, meaning errant, and by extension wanderer or drifter.[1] Plankton typically flow with ocean currents. While some forms are capable of independent movement and can swim hundreds of meters vertically in a single day (a behavior called diel vertical migration), their horizontal position is primarily determined by the surrounding currents. This is in contrast to nekton organisms that can swim against the ambient flow and control their position (e.g. squid, fish, and marine mammals).. Within the plankton, holoplankton spend their entire life cycle as plankton (e.g. most algae, copepods, salps, and some jellyfish). By contrast, meroplankton are only planktic for part of their lives (usually the larval stage), and then graduate to either a nektic or benthic (sea floor) existence. Examples of meroplankton include the larvae of sea urchins, starfish, crustaceans, marine worms, and most fish.. Full article ▸. ...
In March 2018, the Scottish Parliaments Environment, Climate Change and Land Reform Committee published a report on the environmental impacts of salmon farming. The report voiced deep concerns about the continuing growth of the sector absent a full understanding of its environmental impacts. The committee was particularly concerned about the 25% mortality rate of farmed salmon, sea lice epidemics and the impact on wild stocks, and the use of chemicals on the environment. Discharge of waste nutrients and their interaction in the wider marine environment, including solid wastes from open net pen farms and effects on sediments, was also a major concern. The committee concluded that not enough is known about the environmental effect of salmon farming and that the status quo is not sustainable.. In 2015, Scottish fisheries scientists, joined by peers from Norway and Ireland, reviewed over 300 scientific publications on the damaging effects of sea lice on sea trout stocks in salmon farming areas and ...
site_name: Stockton, linked_photo: false, month: null, county: Tooele (UT), record_type: literature, year: null, females: 0, subspecies: null, collector: null, id: 178836, locality: Stockton, state: UT, latitude: 40.45, elevation: 5147, males: 1, collection: null, collection__url: null, date: None/None/None, day: null, notes: Troubridge & Lafontaine, 2002, longitude: -112.36}, {site_name: Denio, 2mNE, linked_photo: false, month: 7, county: Harney (OR), record_type: specimen, year: 2001, females: 0, subspecies: null, collector: Troubridge/Crabo/Laf., id: 92672, locality: Denio, 2mNE, state: OR, latitude: 42.01, elevation: 4174, males: -99999, collection: LGCC, collection__url: null, date: 2001/7/20, day: 20, notes: , longitude: -118.59}, {site_name: Big Pine Mts, Formation Cyn, linked_photo: false, month: 7, county: Cassia (ID), record_type: specimen, year: ...
Blood tests are necessary, easy-to-perform and low-cost alternatives for monitoring of oncolytic virotherapy and other biological therapies in translational research. Here we assessed three candidate proteins with the potential to be used as biomarkers in biological fluids: two glucuronidases from E. coli (GusA) and Staphylococcus sp. RLH1 (GusPlus), and the luciferase from Gaussia princeps (GLuc). The three genes encoding these proteins were inserted individually into vaccinia virus GLV-1h68 genome under the control of an identical promoter. The three resulting recombinant viruses were used to infect tumor cells in cultures and human tumor xenografts in nude mice. In contrast to the actively secreted GLuc, the cytoplasmic glucuronidases GusA and GusPlus were released into the supernatants only as a result of virus-mediated oncolysis. GusPlus resulted in the most sensitive detection of enzyme activity under controlled assay conditions in samples containing as little as 1 pg/ml of GusPlus, ...
Among copepods, reproduction is facilitated by a combination of sensory modalities, such as mechano- and chemoreception. The role of chemical communication in copepod mate recognition was assessed using behavioural bioassays that were based on precopulatory behaviours of an estuarine harpacticoid, Coullana canadensis, and the sibling species Coullana sp. Intra- and interspecific crosses demonstrated that males recognize genetically distinct conspecific and heterospecific females, indicating that prezygotic isolation remains incomplete. There was no association between the frequency of mate-guarding behaviour and geographic distance between populations of C. canadensis. However, reduced levels of interspecific mate guarding relative to intraspecific frequencies suggest the existence of a species-specific mate-recognition system. Lectins, which possess strong affinities for specific carbohydrate groups, were used to confirm that glycoproteins on the surface of females function as mate-recognition ...
Purpose: One of the key limiting parameters in the penetration and effectiveness of topically applied ocular therapeutics is their mean residence time. Most of an instilled solution clears through drainage, with first-order clearance about 4 times that of bulk tear flow (~5 ul/min). For protein drugs, the problem becomes more acute due to the additional burden of reduced penetrance through the cornea and conjunctiva. Residence time might be increased however by fusing a protein of interest to a mucosal surface binding protein, such as galectin-3 (gal-3). Gal-3 is a small pentameric ocular surface resident protein that cross-links O-type mucins.. Methods: We used Gaussia luciferase (luc) as our test protein, fused at its N-terminus to one or 2 copies of the carbohydrate binding domain of gal-3 (gal). Fusions were expressed in HEK cells and purified by IMAC chromatography, and evaluated mucin binding by ELISA and by their ocular surface half-lives on mouse eyes and rabbit corneas, using luciferase ...
This post is about study on Balaenophilus manatorum - a tiny parasitic copepod that lives on sea turtles. How does a tiny crustacean like that manage to find their way onto a turtle in the wide expanse of the sea? Do they jump on board when the turtle come into contact with each other, or can the larval stage swim on their own? Obviously they have managed to find a way because this copepod is very common among the juvenile loggerheads in the western Mediterranean, with over 80 percent of loggerhead turtles infected with B. manatorum. Given how small they are (the adult copepod is only about a millimetre long), it seems as if they would be barely a nuisance to their host. But when they occur in large numbers, they can be an serious menace. And they seem to have a very particular taste. It was thought that B. manatorum feed mostly (if not exclusively) on sea turtle skin ...
Copepoda[edit]. Copepods have six naupliar stages, followed by a stage called the copepodid, which has the same number of body ... First chalimus of Lepeophtheirus elegans Gusev, 1951 (Copepoda, Caligidae): A, leg 3; B, leg 3 (other specimen); C, leg 4; D, ... The salmon louse Lepeophtheirus salmonis (Copepoda: Caligidae) life cycle has only two chalimus stages. LA Hamre, C Eichner, ... "The caligid life cycle: new evidence from Lepeophtheirus elegans reconciles the cycles of Caligus and Lepeophtheirus (Copepoda ...
Copepoda. I. Gymnoplea, Berlin 1898 (with Wilhelm Giesbrecht) - The animal kingdom. Copepoda. I. Gymnoplea. In 1901 Schmeil's ...
Crustacea: Copepoda". Transactions of the Linnean Society of London. 3rd series. 1 (3): 219-247. doi:10.1111/j.1096-3642.1955. ... CS1 maint: discouraged parameter (link) Ian A. E. Bayly (1992). "Fusion of the genera Boeckella and Pseudoboeckella (Copepoda) ... T. Chad Walter (2010). T. C. Walter; G. Boxshall (eds.). "Boeckella palustris (Harding, 1955)". World Copepoda database. World ... Copepoda: Centropagidae): a track analysis". Journal of Crustacean Biology. 20 (2): 262-272. doi:10.1651/0278-0372(2000)020[ ...
Ohtsuka, Susumu; Piasecki, Wojciech; Ismail, Norshida; Kamarudin, Ahmad Syazni (2020). "A new species of Brachiella (Copepoda, ... "Copepoda: copepods". In Klaus Rohde (ed.). Marine Parasitology. CSIRO Publishing. pp. 121-133. ISBN 978-0-643-09927-2. Geoff ...
1895 A monograph of the free and semi-parasitic Copepoda of the British Islands. GS Brady - 1880 Boxshall, G. (2001). Copepoda ...
Luiz E. R. Tavares & José L. Luque (2003). "A New Species of Acantholochus (Copepoda: Bomolochidae) Parasitic on Centropomus ... Ju-shey Ho (2010). T. Chad Walter & Geoff Boxshall (ed.). "Hamaticolax unisagittatus (Tavares & Luque, 2003)". World Copepoda ...
World Copepoda database. World Register of Marine Species. Retrieved May 16, 2010. CS1 maint: discouraged parameter (link) v t ...
CS1 maint: discouraged parameter (link) J. B. Jones (1998). "Distant water sailors: parasitic Copepoda of the open ocean". ... ISBN 978-0-313-33922-6. Z. Kabata (1979). Parasitic Copepoda of British Fishes. London: Ray Society. ISBN 978-0-903874-05-2. ... Geoff Boxshall (2011). T. Chad Walter & Geoff Boxshall (ed.). "Lernaeocera branchialis (Linnaeus, 1767)". World Copepoda ... Copepoda : Pennellidae) (PDF) (PhD thesis). University of Stirling.[permanent dead link] Bernard E. Matthews (1998). "From host ...
T. Chad Walter (2018). T. Chad Walter; Geoff Boxshall (eds.). "Mesocyclops Sars G.O., 1914". World Copepoda database. World ... January 2005). "Elimination of dengue by community programs using Mesocyclops (Copepoda) against Aedes aegypti in central ...
World Copepoda database. World Register of Marine Species. Retrieved October 3, 2010. CS1 maint: discouraged parameter (link) v ...
T. Chad Walter (2010). T. Chad Walter; Geoff Boxshall (eds.). "Notodiaptomus Kiefer, 1936". World Copepoda database. World ...
copepodite Copepoda fam. gen. sp. copepodite Copepoda - adults Acanthochondria soleae Caligus curtus Caligus diaphanus Caligus ... adults Calliobdella nodulifera Johanssonia arctica Copepoda - larval forms Caligus sp. ...
T. Chad Walter (2009). T. C. Walter & G. Boxshall (ed.). "Mastigodiaptomus Light, 1939". World Copepoda database. World ... Copepoda, Diaptomidae) from southeastern Mexico, with a key for the identification of the known species of the genus" (PDF). ...
Copepoda: Harpacticoida: Darcythompsoniidae)". Journal of the Marine Biological Association of the United Kingdom (in press): 1 ... T. Chad Walter & Rony Huys (2009). T. C. Walter & G. Boxshall (eds.). "Leptocaris Scott T., 1899". World Copepoda database. ...
T. Chad Walter & Geoff Boxshall (2011). T. C. Walter & G. Boxshall (ed.). "Pontella Dana, 1846". World Copepoda database. World ...
World Copepoda database. World Register of Marine Species. Retrieved May 16, 2010. CS1 maint: discouraged parameter (link) Reid ...
J. Kouwenberg & G. Boxshall (2009). "Calocalanus pavo (Dana, 1852)". World Copepoda database. Retrieved March 3, 2009. CS1 ...
CS1 maint: discouraged parameter (link) Janet Bradford (1976). "Partial Revision of the Acartia Subgenus Acartiura (Copepoda: ... World Copepoda database. World Register of Marine Species. Retrieved July 22, 2011. ...
Geoff Boxshall (August 20, 2008). T. Chad Walter & Geoff Boxshall (ed.). "Basipodellidae". World Copepoda database. World ... World Copepoda database. World Register of Marine Species. Retrieved 2016-09-10. CS1 maint: discouraged parameter (link) Geoff ... Boxshall (August 20, 2008). T. Chad Walter & Geoff Boxshall (ed.). "Microdajidae". World Copepoda database. World Register of ...
World Copepoda database. World Register of Marine Species. Retrieved June 24, 2011. CS1 maint: discouraged parameter (link) ...
World Copepoda database. World Register of Marine Species. Retrieved June 19, 2018. B. Sket (1996). "Metacyclops campestris". ...
Pascal Moeschler & Raymond Rouch (1988). "Découverte d'un nouveau représentant de la famille des Gelyellidae (Copepoda, ... World Copepoda database. World Register of Marine Species. Retrieved March 8, 2010. CS1 maint: discouraged parameter (link) ... Copepoda: Developments in Ecology, Biology and Systematics. Hydrobiologia 453/454. pp. 227-253. doi:10.1023/A:1013100924948. ...
World Copepoda database. World Register of Marine Species. Retrieved October 28, 2010. CS1 maint: discouraged parameter (link) ...
Geoff Boxshall (2009). T. Chad Walter; Geoff Boxshall (eds.). "Ommatokoita Leigh-Sharpe, 1926". World Copepoda database. World ...
2013). Argulus foliaceus (Linnaeus, 1758). World Copepoda Database. Accessed through World Register of Marine Species 28 August ...
T. Chad Walter (July 15, 2008). T. Chad Walter; Geoff Boxshall (eds.). "Dussartius Kiefer, 1978". World Copepoda database. ... Copepoda, Calanoida)". Crustaceana. 76 (11): 1399-1407. doi:10.1163/156854003323009876. JSTOR 20105677. v t e. ...
"Cyclops Müller, 1785". World Copepoda database. G. G. Marten (1986). "Issues in the development of Cyclops for mosquito control ...
WoRMS (2009). T. Chad Walter & Geoff Boxshall (ed.). "Gastrodelphyidae". World Copepoda database. World Register of Marine ...
J. Kouwenberg & G. Boxshall (2009). T. C. Walter & G. Boxshall (ed.). "Gaussia princeps (Scott T., 1894)". World Copepoda ...
T. Chad Walter (July 15, 2008). T. Chad Walter; Geoff Boxshall (eds.). "Dipteropeltis hirundo Calman, 1912". World Copepoda ...
... Click on an image to view larger version & data in a new window ... Copepoda. Version 01 January 2002 (temporary). http://tolweb.org/Copepoda/6246/2002.01.01 in The Tree of Life Web Project, http ... Diversity and Geographical Distribution of Pelagic Copepoda. Observatoire océanologique, Laboratoire Arago, Banyuls/Mer, France ...
... Click on an image to view larger version & data in a new window ...
Copepoda: les Harpacticoïdes souterrains des eaux douces continentales. In Botosaneanu, L. (ed.), Stygofauna Mundi, E.J.Brill, ... Phylogeny and biogeography of the genus Pseudectinosoma and description of P. janineae sp.n. (Crustacea, Copepoda, ... Global diversity of copepods (Crustacea: Copepoda) in freshwater. *Geoff A. Boxshall. 1. & ... Boxshall, G.A., Defaye, D. Global diversity of copepods (Crustacea: Copepoda) in freshwater. Hydrobiologia 595, 195-207 (2008 ...
Copepoda (2021). Copepoda. Accessed at: http://www.marinespecies.org/copepoda/aphia.php?p=taxdetails&id=1080 on 2021-05-08 ... Infraclass Copepoda incertae sedis (temporary name). Order Herpyllobioida accepted as Herpyllobiidae Hansen, 1892 (Higher taxon ...
LANSAC-TOHA, F. A.; VELHO, L. F. M.; HIGUTI, J. and TAKAHASHI, E. M.. Cyclopidae (Crustacea, Copepoda) from the upper Paraná ...
Hansen, A.V. (1923) Crustacea Copepoda. 2. Copepoda Parasita and Hemiparasita. Danish Ingolf-Expedition, 3, 1-92.Google Scholar ... Copepoda: Lernaeopodidae) parasitic on Triakis maculata (Kner & Steindachner) from the Chilean coast, South Pacific. Systematic ... Kabata, Z. (1979) Parasitic Copepoda of British fishes. London: The Ray Society, 468 pp.Google Scholar ... Copepoda: Lernaeopodidae) from the gills of Centroscyllium fabricii from the Northwest Atlantic. ...
Feeding of copepodite and adult stages of Eudiaptomus gracilis (Sars, G.O., 1863) (Copepoda, Calanoida) on mixed plastic beads ... West Australian freshwater calanoids (Copepoda) I. Three new species of Boeckella with a description of the developmental ... Biology of Boeckella poopoensis Marsh, 1906 (Copepoda, Calanoida) in natural conditions in temporary saline lakes of the ... Copepoda: Calanoida). Journal of Marine and Freshwater Research 10(1):131-137. [ Links ] ...
JARAMILLO, R et al. Polysiphonia spp as epibiont of Caligus rogercresseyi (Crustacea: Copepoda) in Salmo salar farming centers. ...
n. (Crustacea, Copepoda, Nicothoidae) from São Sebastião, SP, Brazil Dataset homepage. Citation. Björnberg T (2003). ... n. (Crustacea, Copepoda, Nicothoidae) from São Sebastião, SP, Brazil. Zootaxa 603: 1-12, DOI: 10.5281/zenodo.158250 Taxonomic ... n. (Crustacea, Copepoda, Nicothoidae) from São Sebastião, SP, Brazil. Plazi.org taxonomic treatments database. Checklist ...
Vásquez Yeomans L, Ramos Rivera P (2017). Actualización de bases de datos de invertebrados (Rotifera, Cladocera y Copepoda) y ... Actualización de bases de datos de invertebrados (Rotifera, Cladocera y Copepoda) y peces Dataset homepage ...
Buy Copepoda: Calanoida: Diaptomidae (9789051030891): Key to the genera Heliodiaptomus, Allodiaptomus, Neodiaptomus, ... Copepoda: Calanoida: Diaptomidae Key to the genera Heliodiaptomus, Allodiaptomus, Neodiaptomus, Phyllodiaptomus, Eodiaptomus, ...
"Copepoda" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical Subject Headings ... This graph shows the total number of publications written about "Copepoda" by people in this website by year, and whether " ... Below are the most recent publications written about "Copepoda" by people in Profiles. ...
Phylogenetic Analysis of Ridgewayia (Copepoda: Calanoida) from the Galapagos and of a New Species from the Florida Keys With a ... Diego F. Figueroa "Phylogenetic Analysis of Ridgewayia (Copepoda: Calanoida) from the Galapagos and of a New Species from the ... Diego F. Figueroa "Phylogenetic Analysis of Ridgewayia (Copepoda: Calanoida) from the Galapagos and of a New Species from the ...
The subclass Copepoda is an important driving force in linking the lower trophic to higher trophic levels in aquatic ecosystems ... The subclass Copepoda is an important driving force in linking the lower trophic to higher trophic levels in aquatic ecosystems ... Nicholls AG (1944) Littoral Copepoda from the Red Sea. Ann Mag Nat Hist 11:487-503CrossRefGoogle Scholar ... Al-Aidaroos A.M., El-Sherbiny M.M., Mantha G. (2019) Copepoda-Their Status and Ecology in the Red Sea. In: Rasul N., Stewart I ...
Soh H. Y. , Suh H-L. 2000 "A new species of Acartia (Copepoda, Calanoida) from the Yellow Sea." Journal of Plankton Research ... Ferrari F. D. , Dahms H-U. 2007 "Post-embryonic development of the Copepoda." Crustaceana Monographs Vol 8 1 226 ... Yoon W. D. , Shim M. B. , Choi J. K. 1998 "Description of the developmental stages in Acartia bifilosa Giesbrecht (Copepoda: ... Onoue Y. , Toda T. , Ban S. 2004 "Morphological features and hatching patterns of eggs in Acartia steueri (Crustacea, Copepoda ...
f Control of aedes vectors of dengue in three provinces of Vietnam by use of Mesocyclops (Copepoda) and community-based methods ...
Copepoda (Crustacea) parasitic on fishes: Problems and perspectives. Advances in Parasitology, 19, 1-71. CrossrefGoogle Scholar ... Parasitic Copepoda. Proceedings of the Symposium on scombroid fishes held at Mandapam Camp from January 12-15, 1962. Part III. ... Parasitic Copepoda from Australian waters. Records of the Australian Museum, 25, 149-234Google Scholar ... South African parasitic Copepoda. Annals of the South African Museum, 62, 69-130Google Scholar ...
f ELIMINATION OF DENGUE BY COMMUNITY PROGRAMS USING MESOCYCLOPS(COPEPODA) AGAINST AEDES AEGYPTI IN CENTRAL VIETNAM * VU SINH ... Copepoda. Thorp JH, Covich AP, eds. Ecology and Classification of North American Freshwater Invertebrates. New York: Academic ... Control of Aedes vectors of dengue in three provinces of Vietnam by use of Mesocyclops (Copepoda) and community-based methods ... National progress in dengue vector control in Vietnam; survey for Mesocyclops (Copepoda), Micronecta (Corixidae) and fish as ...
Crustacea Copepoda. II. Copepoda Parasita and Hemiparasita. Danish Ingolf-Expedition, 3, 1-92, pls. 1-5Google Scholar ... Copepoda and Branchiura. In: (Eds L. Margolis, and Z. Kabata) Guide to the parasites of fishes of Canada. Part II - Crustacea. ... Copepoda: Caligidae), a parasite of fishes from the Pacific coast of North America. Journal of the Fisheries Research Board of ... Parasitic Copepoda from Gulf of Mexico fish. Occasional Papers of the Marine Laboratory of Louisiana State University, 9, 1-19 ...
Parasitic Copepoda of British Fishes. The Ray Society, British Museum, London, United Kingdom. [ Links ]. Luque, J.L. & L.E.E. ... Parasitic Copepoda from Mexican coastal fishes. Bull. Mar. Sci. 10: 323-337. [ Links ]. Cressey, R. & H.B. Cressey. 1980. ... Checklist of Copepoda associated with fishes from Brazil. Zootaxa 1579: 1-39. [ Links ]. Morales-Ramírez, A. 2008. ... Sea Lice of Taiwan (Copepoda: Siphonostomatoida: Caligidae). The Sueichan Press, Keelung, Taiwan. [ Links ]. Jackson, D. & D. ...
The parasitic Copepoda and the Branchiura of the fishes of Lake Victoria and the Victoria Nile. Proc. Zool. Soc. London137: 41- ... A report on the parasitic Copepoda and Branchiura of the fishes of the Lake Nyasa. Proc. Zool. Soc. London127: 293-344. ... Postembryonic development of the Copepoda. Crustaceana Monographs 8: 1-232. (BrillLeiden). ... spatulatus, and Ectocyclops medius Kiefer, 1930 (Copepoda: Cyclopidae). Zool. Stud.48: 12-32. ...
Studies on Decapoda and Copepoda in Memory of Michael Türkay. Series:*Crustaceana Monographs, Volume: 22 ... A new species of the genus Typhlamphiascus (Copepoda, Harpacticoida, Miraciidae) from the South China Sea ...
Definition of Copepoda - a large class of small aquatic crustaceans, many of which occur in plankton and some of which are ... The Copepoda are an incredibly numerous group of crustaceans.. * However, cladistic analysis indicates that the Cycloidea ... Hemoglobins have been described in a select number of crustacean groups, including the Branchiopoda, Ostracoda, Copepoda, ... Monstrilloid copepods represent one of the ten orders of Copepoda currently recognized. ...
AETIDEOPSIS ALBATROSSAE, NEW SPECIES (CRUSTACEA: COPEPODA) FROM EAST OF MINDORO, THE PHILIPPINES ...
Genome- and transcriptome-assisted development of nuclear insertion/deletion markers for Calanus species (Copepoda: Calanoida) ... Genome- and transcriptome-assisted development of nuclear insertion/deletion markers for Calanus species (Copepoda: Calanoida) ...
2007 Life-cycle and population dynamics of Rhincalanus gigas (Copepoda: Calanoida) in the Scotia Sea. Marine Ecology Progress ... Life-cycle and population dynamics of Rhincalanus gigas (Copepoda: Calanoida) in the Scotia Sea ...
Life Cycle and Population Dynamics of the marine ectoparasite Dichelesthium oblongum (Copepoda: Dichelesthiidae) on Atlantic ... Life Cycle and Population Dynamics of the marine ectoparasite Dichelesthium oblongum (Copepoda: Dichelesthiidae) on Atlantic ... Dichelesthium oblongum belongs to the family Dichelesthiidae, within the Suborder Siphonostomatoida, subclass Copepoda (Kabata ...
Expansicervinia glacieria new genus new species of cerviniidae copepoda harpacticoida from the beaufort sea with a revision of ... A new species and a new genus of Cerviniidae Copepoda Harpacticoida from the Beaufort Sea, with a revision of the family. ... Meiobenthic Harpacticoida (Crustacea, Copepoda) from the deep sea off North Carolina. 2. The family Cerviniidae Sars. Lang. ... A new genus and species of the family Canthocamptidae Copepoda, Harpacticoida from a hot spring at Dusun Tua, Selangor, ...
Two Species of Caligus (Copepoda, Caligidae) from Australian Waters, with a Description of Some Developmental Stages. File. ... Two species of Caligus (Copepoda, Caligidae) from Australian waters, with a description of some developmental stages. Pac Sci ... Two Species of Caligus (Copepoda, Caligidae) from Australian Waters, with a Description of Some Developmental Stages ... Two Species of Caligus (Copepoda, Caligidae) from Australian Waters, with a Description of Some Developmental Stages ...
Reproduction, growth and secondary production of Pseudocalanus elongatus Boeck (Copepoda, Calanoida) in the southern North Sea ... Copepoda, Calanoida) in the southern North Sea , Journal of Plankton Research, 30 (5), pp. 511-528 . doi: 10.1093/plankt/fbn016 ...
  • World Directory of Crustacea Copepoda of Inland Waters. (springer.com)
  • Crustacea, Copepoda, Ectinosomatidae). (springer.com)
  • Hansen, A.V. (1923) Crustacea Copepoda. (springer.com)
  • Kabata, Z. (1986) Redescription of and comments on four little-known Lernaeopodidae (Crustacea: Copepoda). (springer.com)
  • Almeida Prado-Por MS (1990) A diel cycle of vertical distribution of the Calanoida (Crustacea: Copepoda) in the northern Gulf of Aqaba (Elat). (springer.com)
  • However, cladistic analysis indicates that the Cycloidea possibly belong within the Crustacea as a sister group of the Copepoda. (oxforddictionaries.com)
  • Copepoda (phylum Arthropoda , sub-phylum Crustacea ) Large and diverse class of mostly marine crustaceans, though there are many freshwater species and a few which live in water films between mosses and soil particles. (encyclopedia.com)
  • Previattelli D, Perbiche-Neves G, Da Rocha C (2017) A new species of Notodiaptomus (Crustacea: Copepoda: Calanoida: Diaptomidae) from the Amazon basin. (pensoft.net)
  • Recherche uO Research: Chromatin Diminution in 'Mesocyclops edax' (Crustacea, Copepoda): Similarity of the Pre- and Post-diminution Euchromatic Genomes. (uottawa.ca)
  • Two new genera and three new species of subterranean cyclopoids (Crustacea, Copepoda) from New Zealand, with redescription of Goniocyclops silvestris Harding, 1958. (wikimedia.org)
  • Description of the first Boeckella (Copepoda, Calanoida, Centropagidae) from New Caledonia. (springer.com)
  • Al-Aidaroos AM, Salama AJ, El-Sherbiny MM (2016b) New record and redescription of Calanopia thompsoni A. Scott, 1909 (Copepoda, Calanoida, Pontellidae) from the Red Sea, with notes on the taxonomic status of C. parathompsoni Gaudy, 1969 and a key to species. (springer.com)
  • Almeida Prado-Por MS (1983) The diversity and dynamics of Calanoida (Copepoda) in the northern Gulf of Elat (Aqaba), Red Sea. (springer.com)
  • Almeida Prado-Por MS (1985) Distribution of Calanoida Copepoda along the Gulf of Elat (Aqaba). (springer.com)
  • Bradford J. M. 1976 "Partial revision of the Acartia subgenus Acartiura (Copepoda: Calanoida: Acartiidae). (brillonline.com)
  • Castro-Longoria E. , Williams J. A. 1999 "Acartia bifilosa (Copepoda, Calanoida): Acanthacartia or Acartiura? (brillonline.com)
  • Ward, P. . 2007 Life-cycle and population dynamics of Rhincalanus gigas (Copepoda: Calanoida) in the Scotia Sea. (nerc.ac.uk)
  • Monstrilloid copepods represent one of the ten orders of Copepoda currently recognized. (oxforddictionaries.com)
  • Copepoda -- Copepods are free-swimming microcrustacea. (fda.gov)
  • Jocquè, M. 2013: Leaf litter copepods from a cloud forest mountain top in Honduras (Copepoda: Cyclopidae, Canthocamptidae). (wikimedia.org)
  • Kutu laut adalah sekelompok spesies hewan copepoda dari ordo Siphonostomatoida , yaitu famili Caligidae . (wikipedia.org)
  • Copepoda: Siphonostomatoida: Lernaeopodidae) is described from adult female specimens collected from gill filaments of a diamond ray Gymnura natalensis (Gilchrist and Thompson, 1911) captured in the Indian Ocean off the South African coast. (allenpress.com)
  • A new genus and two new species of Pennellidae (Copepoda: Siphonostomatoida) and an analysis of evolution within the family. (parasite-journal.org)
  • 2014. Description of two species of Peniculus von Nordmann, 1832 (Copepoda: Siphonostomatoida: Pennellidae) parasitic on commercial fishes from Korea, including a new species. (parasite-journal.org)
  • Bernot JP, Boxshall GA (2017) A new species of Pseudopandarus Kirtisinghe, 1950 (Copepoda: Siphonostomatoida: Pandaridae) from sharks of the genus Squalus L. in New Caledonian waters. (nhm.ac.uk)
  • A mathematical model of population dynamics is proposed which embodies the principal biological processes involved in the energetic budget of Euterpina acutifrons Dana (Copepoda: Harpacticoida): ingestion, excretion, egestion, and reproduction. (archives-ouvertes.fr)
  • This study attempted to resolve phylogenetic relationships among and within four major copepod orders including Harpacticoida and the phylogenetic position of Copepoda among five other crustacean groups (Anostraca, Cladocera, Sessilia, Amphipoda, and Decapoda) using 24 nuclear protein-coding genes. (beds.ac.uk)
  • Elaphoidella grandidieri (Harpacticoida: Copepoda): Demographic characteristics and possible use as live prey in aquaculture. (bvsalud.org)
  • The sea lice (Copepoda: Caligidae) of Moreton Bay (Queensland, Australia) with descriptions of thirteen new species. (degruyter.com)
  • Fusion of the genera Boeckella and Pseudoboeckella (Copepoda) and revision of their species from South America and sub-Antarctic islands" (PDF). (wikipedia.org)
  • A New Species of Acantholochus (Copepoda: Bomolochidae) Parasitic on Centropomus undecimalis (Osteichthyes: Centropomidae) from the Coastal Zone of the State of Rio de Janeiro, Brazil" (PDF). (wikipedia.org)
  • he acute toxicity of 468 organic pollutants to planktonic crustaceans (Branchiopoda, Copepoda and Ostracoda) from preexisting data was compared by means of statistical analysis and relative tolerance indices A surrogate species commonly used in toxicity bioassays (Daphnia magna) showed toxicity levels - within one order of magnitude - similar to all other Cladocera species, at least For 82% of the chemicals studied. (edu.au)
  • 1977. Peniculus asinus (Copepoda: Pennellidae), a new species of copepod parasitic on fishes of the genus Sebastes along the west coast of North America. (parasite-journal.org)
  • Pérez-i-García D, Carrassón M, Boxshall GA (2017) A new species of Hamaticolax Ho & Lin, 2006 (Copepoda: Bomolochidae) from deep water macrourids in the Mediterranean. (nhm.ac.uk)
  • A cladistic analysis and taxonomic revision of Australian Metacyclops and Goniocyclops , with description of four new species and three new genera (Copepoda, Cyclopoida). (wikimedia.org)
  • The host specificity of Lepeophtheirus pectoralis (Müller, 1776) (Copepoda: Caligidae). (degruyter.com)
  • STORRE: Studies on aspects of the chemotherapeutic control of the salmon louse Lepeophtheirus salmonis Kroyer 1837 (Copepoda: Caligidae). (stir.ac.uk)
  • 2013) The Salmon Louse Lepeophtheirus salmonis (Copepoda: Caligidae) Life Cycle Has Only Two Chalimus Stages. (nhm.ac.uk)
  • Özak AA, Yanar A, Boxshall GA (2017) The discovery of Caligus macrurus Heller, 1865 (Copepoda: Caligidae) in the Mediterranean Sea, and the recognition of Sciaenophilus van Beneden, 1852 as a junior synonym of Caligus Müller, 1785. (nhm.ac.uk)
  • 1991. Speleoithonidae, a new family of Copepoda (Cyclopoida) from anchialine caves on the Bahama Islands. (tamug.edu)
  • In insects the Orthoptera (especially grasshoppers), and in crustaceans the Decapoda (especially caridean shrimps), Stomatopoda (mantis shrimps) and calanoid Copepoda, are the only groups to far exceed a typically small range. (oxforddictionaries.com)
  • The Copepoda are an incredibly numerous group of crustaceans. (oxforddictionaries.com)
  • The Copepoda are an abundant group of minute aquatic crustaceans, including both free-living and parasitic lineages. (fieldofscience.com)
  • Copepoda A class of crustaceans occurring in marine and freshwater habitats. (encyclopedia.com)
  • The first phylogenomic study of Copepoda provides new insights into taxonomic relationships and represents a valuable resource that improves our understanding of copepod evolution and their wide range of ecological adaptations. (beds.ac.uk)
  • The subclass Copepoda is an important driving force in linking the lower trophic to higher trophic levels in aquatic ecosystems. (springer.com)
  • For example, the crustacean subclass Copepoda supplies the food of the crustacean crustacean order Euphausiacea, the euphausids or krill, shrimplike creatures that are the food of baleen whales and other marine animals. (encyclopedia.com)
  • Laboratory evaluation of Brazilian Mesocyclops (Copepoda: Cyclopidae) for mosquito control. (semanticscholar.org)
  • IMSEAR at SEARO: Laboratory evaluation of the biocontrol potential of Mesocyclops thermocyclopoides (Copepoda: Cyclopidae) against mosquito larvae. (who.int)
  • Control of aedes vectors of dengue in three provinces of Vietnam by use of Mesocyclops (Copepoda) and community-based methods validated by entomologic, clinical, and serological surveillance. (ajtmh.org)
  • survey for Mesocyclops (Copepoda), Micronecta (Corixidae) and fish as biological control agents. (ajtmh.org)
  • Se describe una nueva especie de copépodo calígido del género Lepeophtheirus con base en especímenes femeninos recolectados a partir de muestras de plancton en aguas de Bahía Wafer, isla del Coco, una isla oceánica del Pacífico Tropical Oriental. (scielo.sa.cr)
  • La nueva especie representa el primer Lepeophtheirus descrito en aguas del Pacífico de Costa Rica. (scielo.sa.cr)
  • Boeckella poopoensis Marsh, 1906 es uno de los copépodos más frecuentes en el zooplancton de los lagos salinos sudamericanos, donde generalmente es la especie que más contribuye a la biomasa de la comunidad zooplanctónica. (scielo.br)
  • Infection with Peniculus minuticaudae (Copepoda: Pennellidae) on threadsail filefish ( Stephanolepis cirrhifer ) and black scraper ( Thamnaconus modestus ) farmed in Japan. (parasite-journal.org)
  • Redescription of Peniculus minuticaudae Shiino, 1956 (Copepoda: Pennellidae) from aquarium-held marine fishes in Japan, with notes on its occurrence and life cycle in captivity. (parasite-journal.org)
  • Copepoda has a close affinity to the clade of Malacostraca and Thecostraca but not to Branchiopoda. (beds.ac.uk)
  • 1993. New cyclopoids (Copepoda) from anchialine caves in Bermuda. (tamug.edu)
  • Copepoda: Lernaeopodidae ) parasitic on Triakis maculata (Kner & Steindachner) from the Chilean coast, South Pacific. (springer.com)
  • Kabata, Z. (1964) Redescription of Lernaeopoda centroscyllii Hansen, 1923 (Copepoda: Lernaeopodidae). (springer.com)
  • Albionella kabatai Bens & Izawa, 1993 (Copepoda : Lernaeopodidae) from Apristurus profundorum (Goode & Bean, 1896) (Chondrichthyes: scyliorhinidae) in the Northwest Atlantic Ocean. (naturalsciences.be)
  • Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Albionella kabatai Bens & Izawa, 1993 (Copepoda : Lernaeopodidae) from Apristurus profundorum (Goode & Bean, 1896) (Chondrichthyes: scyliorhinidae) in the Northwest Atlantic Ocean. (naturalsciences.be)
  • Influence of food quality on carbon and nitrogen budget of Calanus glacialis (Copepoda). (geomar.de)
  • Phylogenomics has confirmed the monophyly of Copepoda and Podoplea. (beds.ac.uk)