An order of CRUSTACEA that are parasitic on freshwater fish.
The hard rigid covering of animals including MOLLUSCS; TURTLES; INSECTS; and crustaceans.
One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.
Family of large marine CRUSTACEA, in the order DECAPODA. These are called clawed lobsters because they bear pincers on the first three pairs of legs. The American lobster and Cape lobster in the genus Homarus are commonly used for food.
An infraorder of chiefly marine, largely carnivorous CRUSTACEA, in the order DECAPODA, including the genera Cancer, Uca, and Callinectes.
Infections or infestations with parasitic organisms. The infestation may be experimental or veterinary.
A plant genus of the family ASTERACEAE. Members contain arctiin and onopordopicrin.
Infestations by PARASITES which live on, or burrow into, the surface of their host's EPIDERMIS. Most ectoparasites are ARTHROPODS.
The buckthorn plant family, of the order Rhamnales, includes some species with edible fruits and some that are medicinal.
A family of freshwater fish comprising the minnows or CARPS.
Group of chronic blistering diseases characterized histologically by ACANTHOLYSIS and blister formation within the EPIDERMIS.
Common name for a number of different species of fish in the family Cyprinidae. This includes, among others, the common carp, crucian carp, grass carp, and silver carp.

Growth and development of Argulus coregoni (Crustacea: Branchiura) on salmonid and cyprinid hosts. (1/7)

The obligate fish ectoparasite Argulus coregoni is strictly specific to salmonids and is very rarely found on other fish species. The ability of the parasite to grow and complete its life cycle on a cyprinid host, Rutilus rutilus, was compared with that on a typical salmonid host, Oncorhynchus mykiss. Rearing experiments were run for 42 d with newly hatched metanauplii in flow-through tanks. Body length and sex of the parasites were recorded every 5 d. Growth rates on O. mykiss exceeded those on R. rutilus from the age of 2 wk, at which time the parasites reached a length of about 3.5 mm. Males grew faster than females at the beginning of the experiment up to a length of 2.5 to 3.0 mm; thereafter, a faster growth rate was observed in females. In another experiment, association of parasites with the hosts was monitored and residence time defined as the period between attachment and first detachment from the host. Longer residence time was observed on O. mykiss than on R. rutilus; female parasites stayed on both fish species longer than did males. Faster growth of parasites could be associated with longer uninterrupted periods of attachment to hosts, since frequent detachment means higher energy losses and less time available for feeding. Despite its slower growth on R. rutilus, A. coregoni matured and laid egg clutches, but took 5 d longer than on O. mykiss. The potential of A. coregoni to complete its life cycle on cyprinids could have important ecological consequences, creating an infection reservoir when the main salmonid hosts are rare or temporarily missing.  (+info)

Efficacy of emamectin benzoate in the control of Argulus coregoni (Crustacea: Branchiura) on rainbow trout Oncorhynchus mykiss. (2/7)

Efficacy of in-feed treatment with emamectin benzoate (Slice) for the control of ectoparasitic Argulus coregoni on rainbow trout Oncorhynchus mykiss was tested under laboratory and field conditions. In both experiments fish were fed with fish feed to deliver a therapeutic dose of 0 (control) or 50 microg emamectin benzoate kg(-1) d(-1) (treatment) for a period of 7 d. After 3 d of challenge with A. coregoni in the laboratory, the infestation level in treated fish was lower than that observed in the controls (p < 0.001). Efficacy of 100% against newly hatched A. coregoni metanauplii and adults and 80% against juveniles was observed. In the field, trial medication was undertaken at 2 sections on a flow-through canal with 1 wk between treatments. Mean infestations of 100 to 200 A. coregoni per fish with 100% prevalence was recorded prior to medication. Following the treatment, the mean infestation of A. coregoni on fish declined to 31 lice per fish at Section A and 2.5 lice per fish at Section B. Then, after 28 d of treatment, the number of lice per fish was < 1 at Section A; in contrast the mean number of A. coregoni per fish at the control section was > 20. The prevalence of A. coregoni remained < 50% over a period of 72 d of treatment, but started to increase again thereafter. This suggests that emamectin benzoate concentration in fish remained at a level high enough to kill A. coregoni over a period of 9 wk. Emamectin benzoate was very effective in the control of A. coregoni infesting trout.  (+info)

Seasonal and vertical patterns of egg-laying by the freshwater fish louse Argulus foliaceus (Crustacea: Branchiura). (3/7)

Argulus foliaceus is a damaging fish ectoparasite for which new control measures are being developed based on egg-removal. In an attempt to develop further understanding of seasonal and vertical egg-laying patterns in this parasite, egg-laying activity was monitored over the period 14 April to 17 November 2003 in 2 rainbow trout Oncorhynchus mykiss fisheries in Northern Ireland, UK. At Site 1, egg-laying was continuous from 21 April to 17 November, when water temperature was above 8 to 10 degrees C. At Site 2, egg-laying was continuous from 4 June to 29 October. In the early months of the season, egg-laying was recorded mainly within the top 1 m of the water column; however, a significant shift to deep water egg-laying was recorded between 7 July and 17 November at Site 1 and between 20 August and 29 October at Site 2. Egg clutches were preferentially laid at depths of up to 8.5 m during this time (Site 2), a feature of egg-laying hitherto unappreciated. Temperature and dissolved oxygen did not differ significantly among depths, but there was an increase in water clarity over time. However, the precise environmental triggers for deep water egg-laying are still unclear. These new insights into the reproductive behaviour of this species will be useful in developing control methods based on egg-removal.  (+info)

Five ectoparasites from Turkish fish. (4/7)

Five ectoparasites were collected during the period of 2002-2005 from fish of Mediterranean Sea, Aegean Sea and inland waters of Turkey: Four crustaceans [Ergasilus mosulensis and Pennella instructa (Copepoda), Ceratothoa steindachneri (Isopoda) and Argulus foliaceus (Branchiura)] and one Annelida (Piscicola geometra) were found. The species, E. mosulensis, P. instructa and C. steindachneri have been reported for first time in Turkish waters, and A. foliaceus and P. geometra for the time from the Cavuscu Lake.  (+info)

Diel variation in egg-laying by the freshwater fish louse Argulus foliaceus (Crustacea: Branchiura). (5/7)

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Control of freshwater fish louse Argulus coregoni: a step towards an integrated management strategy. (6/7)

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Expanded description of Dolops bidentata (Bouvier, 1899) (Branchiura: Argulidae) based on specimens collected on Pygocentrus nattereri Kner, 1858 (Characiformes) from Pocone Wetland, MT, Brazil. (7/7)

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In this study we examine differences in the occurrence of life history stages of the destructive fish ectoparasite Argulus foliaceus (L., 1758) on eight fish species (stickleback, rudd, roach, gudgeon, bream, tench, crucian carp and common car...
It has been said that in many animals, the most simple and elegant way to control pain perioperatively is to perform a local or regional anesthetic block (1). The experiments outlined in my thesis aimed to show whether or not fish can be counted among those animals. Fish are proving to be a useful animal for many types of research. Unfortunately, their increased popularity in recent years has not been accompanied by an important improvement of our understanding of their welfare. There is Show moreIt has been said that in many animals, the most simple and elegant way to control pain perioperatively is to perform a local or regional anesthetic block (1). The experiments outlined in my thesis aimed to show whether or not fish can be counted among those animals. Fish are proving to be a useful animal for many types of research. Unfortunately, their increased popularity in recent years has not been accompanied by an important improvement of our understanding of their welfare. There is ongoing ...
Journal of Food Quality is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles related to all aspects of food quality characteristics acceptable to consumers. The journal aims to provide a valuable resource for food scientists, nutritionists, food producers, the public health sector, and governmental and non-governmental agencies with an interest in food quality.
presence of fish lice (argulus) on the skin that look like dark spots at first glance; argulus is one of the very few fish parasites visible to the naked eye. - rubbing of body against rocks and pond surfaces ...
Argulus sp. (Muller, 1785). Argulus sp. is well known as Fish louse. Argulus sp. is an ectoparasite mostly found on body surface and fins of fish. Body of Argulus spp. is divided into three regions: cephalothorax, thorax and abdomen. Length 3.00 - 5.12 mm. Body dorso-ventrally flattened. Two sucker to attach with fish. One pair of compound eye present that can be moved. Both reproductive and breathing organs are situated in the tail. Mouth is situated behind the probosis. Female is larger than male. The disease caused by Argulus sp. called argulosis.. ...
Argulus or fish lice are parasites of fish from the class of crustaceans Branchira family. These parasites get into the aquarium usually through a li
The level of chemicals used by fish farmers to treat sea lice infestations has risen dramatically, a BBC Scotland investigation has learned. Scottish government
Anti Crustacean Parasite (No 12) will eradicate anchor worm (Learna sp.), fish lice (Argulus sp.), gill maggots (Ergasilus sp.) and fish leeches. If left untreated these parasites will cause life threatening damage so should be eradicated quickly.. We recommend you use this treatment when Fish with parasites show the following symptoms:. Flicking and rubbing against ...
API API General Cure Powder External Parasite Aquarium Medications API General Cure Powder is an anti-parasitic remedy that treats a wide variety of parasitic diseases including velvet, anchor worm, fish lice, hole-in-the-head disease, gill worms and dactylogyrus. Safe for salt & freshwater tank...
Fish lice species vary in size from just a few millimetres to over 30 millimetres (1.2 in) long, with females usually somewhat larger than the males. There are many species and they are present throughout the world, some having been introduced to the west from Asia with consignments of fancy fish in the early 20th century.. Almost all species in the family are external parasites of fish, with a few species that parasitise on invertebrates or amphibians. They have a wide flattened, oval body, almost entirely covered by a carapace. Their compound eyes are prominent, and the mouth and the first pair of antennae are modified to form a hooked, spiny proboscis (stylet) equipped with suckers, as an adaptation to parasitic life. They have four pairs of thoracic appendages, which are used to swim when they release from the fish. They leave the host for up to three weeks in order to mate and lay eggs. The eggs are laid in strings and patches of jelly on stones and hatch into parasitic larvae.. Affected ...
Karl I understand that this is pretty dangerous stuff. Masoten This is a product which has, until recently, been widely available. It was used for the treatment of the more stubborn parasites such as fish lice, anchor worm, leeches etc. It was used at a dose rate of 1 gm to 660 gallons of water at 55 F, up to a dose of 1 gm to 87 gallons of water at higher temperatures. It is however illegal and has been withdrawn from sale in the U.K. which has led to hobbyists using similar
Treats a wide variety of parasitic diseases including velvet, anchor worm, fish lice, hole-in-the-head disease, gill worms and dactylogyrus ...
LIMIT cd from Public Eyesore, more information - http://www.publiceyesore.com/catalog.php?pg=3&pit=138 Below is an expanded description of the work - For a new music Time Reversal and Anticipation in Music Using reverse reverberation, its possible to create a simulacrum of time reversal, the spatial environment itself producing the sound, which always follows, always ensues. In other words, spatiality, temporality, produce the sound which is emblematic, responsive, to the exigencies of the aural resonance, and likewise, the human body, the body of the musician, is an emergent property of the whole. Space is a dwelling in eternity, and speech has already been spoken in a form of future anterior. Behind us, we find ourselves in the future, and before us, the anticipation of a creation yet to come. (See Derrida, No Apocalypse, Not Now, (full speed ahead, seven missiles, seven missives), Diacritics 14/2, 1984 And some fragments on reverse reverberation and inverting amplitudes - inverting ...
Measurements. Total length (mm) 11.32. Carapace length 6; maximum carapace width 7.5. Carapace posterior sinus length1.62; width 1.72. Cephalothorax length 3.98; anterior width 4.25. Abdome length 2.72; width 2.32. Abdome posterior sinus length 1.8; width 0.3. Eyes diameter (µm) 250 left; 225 right; transverse distance between eyes (µm) 775. First maxillae outer diameter (µm) 1400 left; 1350 right; inner diameter 1075 left; 950 right. Number of support rods in suction cups 46-50; number of sclerites per support rod 8-10.. Remarks. The plate of the second maxilla of A. multicolor ...
We have investigated the influence of cortisol on the beta-adrenoreceptor population of rainbow trout [Oncorhynchus mykiss (Walbaum)] erythrocytes and determined what impact it has on the adrenergic responsiveness of erythrocytes in vitro to exogenous catecholamines. To do so, the erythrocyte beta-adrenoreceptors were characterized in fish with chronically elevated plasma cortisol levels (118 +/− 5.9 ng ml-1, greater than 10 days) and compared with shams, using radioreceptor assay techniques. The number of internalized, low-affinity receptors was increased when cortisol levels were raised, but the number of high-affinity, surface receptors was not altered. The physiological significance of this response was ascertained by assessing the in vitro sensitivity (or responsiveness) of erythrocytes to adrenaline and noradrenaline (10-1000 nmol l-1) under normoxic (PO2 = 16.13 +/− 0.55 kPa, PCO2 = 0.41 +/− 0.01 kPa) or hypoxic (PO2 = 4.13 +/− 0.15 kPa, PCO2 = 0.43 +/− 0.01 kPa) conditions. ...
The freshwater fish louse Dolops carvalhoi is an ectoparasite of pacu, Piaractus mesopotamicus capable of causing substantial damage to its hosts. The aim of this study was to investigate some aspects of the host-parasite interaction between these two species. For this purpose the physiological and morphological responses and the participation of the non-adaptive immune system of pacu to the experimental infestation with D. carvalhoi were analyzed. Three different experimental protocols were designed in order to find out the effects of the parasites on their hosts, the host responses that may interfere with parasite establishment and the influence of chronic exposure of hosts with juvenile D. carvalhoi to a second acute stressor of confinement. The results showed that even low level of adult parasite infestation is capable to induce a stress response in the hosts. No changes were observed regarding the plasma osmoregulatory parameters, while an increased number of gill chloride cells and ...
Boxshall, G.; Walter, T. Chad (2010). Argulus rhamdiae Wilson C.B., 1936. In: Walter, T.C. & Boxshall, G. (2017). World of Copepods database. Accessed at http://marinespecies.org/copepoda/aphia.php?p=taxdetails&id=357250 on 2017-12- ...
Disease treatments. an overview of how treatments work, why they often dont work and why they sometimes kill fish.. Disease treatment basics. When you have fish health problems, this guide details the steps to take, and what to do if it isnt possible to make a definitive diagnosis.. Antibiotics. are an important treatment option against bacterial diseases if they are used properly.. Injecting antibiotics. gives the best results against bacterial infections - especially when dealing with severe cases.. Antibiotic baths. and dips are not generally as effective as antibiotics given by injection. Baths and dips may however, be useful for surface infections.. Dimilin. Effective treatment against anchor worm (Lernaea) and possibly fish lice (Argulus). Medicated food. is a useful option for treating bacterial disease, but it does have some disadvantages.. Topical treatments. can be very effective against bacterial diseases - especially when used in conjunction with antibiotics. Chloramine-T. Can be ...
2004. 26cm. Pp.240. 20 photos & figures. Hardbound.Many different kinds of animals have adopted a parasitic life style on the skin and gills of marine and freshwater fishes, including protozoans, flatworms, leeches, a range of crustaceans and even some vertebrates (lampreys). There is a parasitic barnacle, described first in the 19th century by Charles Darwin, fish lice that change sex and bivalve molluscs parasitic only when young.Leeches, Lice and Lampreys explores for the first time in one volume, the remarkable biology of these little known and frequently bizarre animals. The following closely interwoven themes are considered for each group of parasites: how they find their hosts, how they attach, feed and reproduce, the damage they inflict and how the host s immune system retaliates. Based on the British fauna, but extending where appropriate to examples from North America, Australia and elsewhere, the book is essential reading, not just for the professional parasitologist, but also for anyone
Ever had lice in your head? Only the people who had lice would know how irritating it is to deal with (and remove) them. It takes time and effort to get rid of the awful lice from your head and same goes with the fish even though fish lice and human lice are completely different. You may have heard or read that fish
Hi ... a small post to show you the amazing power of regeneration in piranha (Pygocentrus Piraya) video that could not have more information (Japanese owner) I
Expanded Descriptions December 29, 1994 - January 5, 1995: 12/29 cm, 12/30, (1/2 no show aired in LA Rose Parade), 1/3, 1/4, 1/5. December 29, 1894 - With Commercials - Alan and Bobbie talk about their marriages and the New Year. Has not exactly been a stellar year for either of them. Katherine tells Mac he is in the doghouse for digging up the dirt on her. Katherine wants him to find out which Q poisoned her. Mac tells Katherine that he doesn t understand why Katherine thought she could hit Q and they would not hit back. Kevin and Lucy celebrate at The Outback about him being free. Tony and Tiffany wish each other a happy new year. Lucy and Kevin get caught in the rain and find cover in the back of Mac s car where they make out. Mac, who has to go get liquor for the bar, agrees to give Katherine a ride home after Damian cancels on her. As Katherine insults Lucy, Kevin has to stop Lucy from popping out of truck and telling her off. After a quite evening with Bobbie, Tony wants to be able to wipe ...
Till the moment of hatching there appear successively two dorsal organs and two cuticles. The first dorsal organ, stripelike, stretches along the dorsal region of the embryo. After it disappears there remains, instead, in the first cuticle as long a seam or suture. But before it has disappeared out of its hind end, arises the second dorsal organ. This one produces a sticky substance, which comes to spread over the second cuticle, especially in the dorsal region of the embryo. At the moment of hatching this cuticle, including the embryo, swelling up as a vesicle, serves as an active mechanism to split the covering along the seam mentioned above, and to open widely the resulting valves. Such a mode of hatching, with the dorsal organs contributing to it, seems to be nothing else than a modified moulting adapted to the moment of hatching.. ...
This manual has a long history that started many years ago at the University of Comahue in North Patagonia (Argentina), when some of us were involved in education and training during the early days of trout farming. We considered a comprehensive fish dissection manual, with relevant additional information, was missing and started to focus on rainbow trout. Using the limited resources provided initially by the university, our first pictures were taken with a heavy camera using photographic films, something many of the younger readers probably have never seen: those cellulose strips requiring a lengthy developing process before pictures could be seen at all!. Despite the enthusiasm it soon became obvious that publishing a book with many colour pictures and on a discipline at the time far from popular or highly demanded outside the academic world, was going to be financially very costly. Then time and availability and our evolving professional pathways meant the project was put to sleep for ...
A lovely set of A4 sized numbers 0-100 on these lovely images. This resource can be used to hang up in the classroom or as number flashcards.
This study was conducted to evaluate the potential pathogenicity of the bacterium Flavobacterium columnare on rainbow trout Oncorhynchus mykiss eyed eggs. Survival to hatching was unaffected by the inclusion in the incubation water of either 300 colony-forming units (CFU) ml−1 or 3000 CFU ml−1 of F. columnare at either 10 or 12° C in either McConaughy or Shasta strain eyed eggs. Bacterial numbers, obtained via scanning electron microscopy or culture, and external membrane morphology were also not significantly different among eggs receiving different concentrations of F. columnare. Initial F. columnare burdens were significantly and positively correlated to the presence of biofilm on the egg external membrane, and biofilm was in turn significantly correlated with increased membrane degradation. The use of either streptomycin or tetracyclin antibiotics significantly reduced bacterial numbers on McConaughy strain eggs, and more eggs survived to hatch in those dishes treated with antibiotics ...
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Background & Aims: There is on-going and growing concern regarding acute and chronic human health effects associated with exposure to combustion-related air pollutants. This thesis describes the development and evaluation of novel methods for assessing exposure to combustion-related air pollutants [particulate matter (PM),black carbon (BC) and nitrogen dioxide (NO₂)] in indoor and outdoor environments.Methods: The methods that were developed and evaluated included: mass and darkness/colour analysis of airborne particle samples; passive samplers; portable real time monitors; and GC-MS analysis of particulate-bound polycyclic aromatic hydrocarbons (pPAHs). These methods were used to measure PM, BC and NO₂ in indoor offices and outdoor streets in Glasgow city centre, and an industrial hydraulic fracturing test site in Poland.Results: Detailed evaluation and calibration of novel methods for darkness measurement of low mass particulate material specimens collected on filters were completed to ...
This volume is a catalog of bird specimens collected on the Pacific Ocean from November to December 1965. There are 15 records total, with numbers from 15027 to 15041. The fields have no headings but appear to include field number, species, sex, time, location, date, gonads, weight and fat condition, remarks (other data on McBee card), and catalog number. Species include Phaethon rubricauda, Pluvialis dominica, Sula spp., and others. Collections were made in an area of the Pacific Ocean bounded approximately by 13° to 20° N and 161° to 173° W. The catalog number field indicates that collections were made by four collectors, identified by the initials JPT, PWW, BAH, and KEA.. ...
The structural characterization of the olfactory epithelium in Pygocentrus nattereri Kner, 1858 was studied with the help of light as well as scanning and transmission electron microscope. The oval shaped olfactory rosette consisted of 26-28 primary lamellae radiated from midline raphe. The olfactory epithelium of each lamella was well distributed by sensory and non-sensory epithelium. The sensory epithelium contained morphologically distinct ciliated and microvillous receptor cells, supporting cells and basal cells. The non-sensory epithelium was made up of labyrinth cells, mucous cells and stratified epithelial cells. According to TEM investigation elongated rod emerging out from dendrite end of the receptor cells in the free space. The dendrite process of microvillous receptor cells contained microvilli. The supporting cells had lobular nucleus with clearly seen electron dense nucleolus. The apex of the ciliated non-sensory cells was broad and provided with plenty of kinocilia. Basal cells ...
Members of the class Demospongiae are hermaphroditic. Life cycle: The zygote develops into parenchymella larva (free-swimming) before settling down on a substrate where it grows into a young sponge (Ref. 833). ...
SlimPro is the unique advantage of super HD, and it is super HDs primary driving force - but it seems a little weak.. Occupying just as much capsule space is the Sensory Impact Blend - intended for focus. Sensory Impact Blend has a few good nootropic brain-booster ingredients.. N-Acetyl-L-Tyrosine is the right Tyrosine form for focus. Its great for stress and for boosting brain chemicals. The Rhodiola has anti-stress benefits, too, along with mental performance-enhancing effects. These 2 are simply awesome brain nutrients, which is why their found in our best brain booster stack for mental domination.. The Amla Fruit pisses us off. Cellucor claims it has several active compounds that support mental energy and memory. This is simply not true. Amla is not for brain health.. Yohimbe & cayenne pepper are good ingredients for a fat-burning stack, but why are they in the Sensory blend? They may bring sensations but seem more relevant to the formula for their fat-burning activity.. Rauvolfia is ...
Brigitte Loos-Frank and Richard P. Lane. 4.1 Introduction 338. 4.1.1 Vector Concepts 340. 4.1.2 Impact of Bloodfeeding 343. Further Reading 343. 4.2 Acari - Mites and Ticks 344. 4.2.1 Morphology 346. 4.2.2 Development 347. 4.2.3 Anactinotrichida (= Parasitiformes) 347. 4.2.3.1 Mesostigmata 347. 4.2.3.2 Dermanyssus gallinae 348. 4.2.3.3 Varroa destructor 348. 4.2.3.4 Metastigmata (= Ixodida or Ixodoidea, Ticks) 350. 4.2.3.5 Development 353. 4.2.3.6 Tick Bites and Saliva 353. 4.2.3.7 Ixodidae - Hard Ticks 354. 4.2.3.8 Argasidae (Soft Ticks) 358. 4.2.3.9 Tick-Borne Diseases 359. 4.2.4 Actinotrichida (= Acariformes) 361. 4.2.4.1 Prostigmata = Actinedida = Trombidiformes 362. 4.2.4.2 Trombiculidae - Harvest Mites, Chiggers 363. 4.2.4.3 Astigmata = Acaridida = Sarcoptiformes 364. Further Reading 365. 4.3 Crustacea 366. 4.3.1 Argulus foliaceus 367. 4.3.2 Sacculina carcini 368. Further Reading 370. 4.4 Insecta 370. 4.4.1 Phthiraptera - Lice 374. 4.4.2 Mallophaga - Chewing Lice 375. 4.4.3 Anoplura - ...
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A new species of Amanita Pers. is documented from Western Australia. Amanita wadulawitu L.E.McGurk, E.M.Davison & E.L.J.Watkin is described from the Perth IBRA subregion. Amanita kalamundae O.K.Mill. is redescribed to include additional collections, drawing attention to the presence of clamp connections in the lamellae and at the base of basidia. A BLASTn search has shown that there are no exact matches of the nuclear ribosomal internal transcribed spacer (ITS) region of either species in GenBank.. ...
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Tributyltin-based (TBT) antifouling paints, widely used for the treatment of flooded surfaces, ha...ve been banned in 2008 for their high environmental persistence and bioaccumulation in aquatic organisms. Although it is still present in aquatic ecosystems, oxidative stress driven by TBT has been still poorly investigated in fish. The aim of the study was to examine the time-course stress responses in liver of rainbow trout that received a single intraperitoneal injection of tributyltin chloride (TBTC) or tributyltin ethoxide (TBTE), both at a dose of 0.05 and 0.5 mg/kg. Levels of metallothioneins, total glutathione, malondialdehyde, superoxide dismutase, catalase, glutathione peroxidase and glutathione S-transferase were evaluated at 3 and 6 days post-injection. Tin load was measured in the muscle of the same fish. Differences were observed in the time-course accumulation of tin with a clear dose-response relationship. Although individual oxidative stress biomarkers varied, the biomarker ...
Maxillopoda. Ostracoda. Malacostraca. Crustaceans (Crustacea) form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at 0.1 mm (0.004 in), to the Japanese spider crab with a leg span of up to 12.5 ft (3.8 m) and a mass of 44 lb (20 kg). Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates by the possession of biramous (two-parted) limbs, and by the nauplius form of the larvae.. Most crustaceans are free-living aquatic animals, but some are terrestrial (e.g. woodlice), some are parasitic (e.g. fish lice, tongue worms) and some are sessile (e.g. barnacles). The group has an extensive fossil record, reaching back to the Cambrian, and includes living fossils such as Triops cancriformis, which ...
A new species of armored scale, Mycetaspis ailynaomi Dones and Evans is described and illustrated from specimens collected on mamey (Mammea americana) from Puerto Rico. A key to the species of Mycetaspis is provided.
Takes viewers on a journey deep into the brain to study the effects of the following three substances: nicotine, cocaine, and marijuana. The first part illustrates the major functions of the brain and shows how its principal cells (the neurons) communicate with each other through electrical and chemical signals. In the second part, animated molecules of nicotine, cocaine, and marijuana travel a route from the external environment through the body to the brain, where viewers learn about the cellular targets of these drugs and how each drug interacts with them and subsequently affects the body. Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box.
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On one dreadful night, in the middle of summer, the skies shattered, and a thousand bolts of light rained down from the heavens, laying waste to the land below. The world five years later is a changed place. The massive loss of life from the 1996VG1 Ulysses asteroid sent the world into a shock and panic from which it has only just begun to recover from. Large nations, like Equestria, are quick to rebuild and recover. For those without deep pockets, however, times grow hard. Griffonstone, a nation already falling to ruin before the disaster. Nationalism begins to rise in the Griffon Kingdom. They blame their leaders for not protecting them. They blame Equestria for not providing support. And most of all, they blame their neighbors for the failure of a pact between the nations of the world to build a weapon to defend themselves against the stars. And so, with fury and speed never before seen in modern warfare, they Blitzkrieg across the continent, destroying all in their path. Rainbow Dash signs ...
Title of Project: Defining Integrated Environmental Exposure Measures in Adolescents Principal Investigator (MPI): Yuri Levin-Schwartz, PhD; Robert Wright, MD, MPH Co-Investigators: Elena Colicino, PhD; Donald R. Smith PhD Project Period: July 1, 2019 - June 30, 2020 Pilot Award Amount: $25,000 Abstract: The measurement of a compound in a single biological sample is unlikely to fully represent the relative body burden […]
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The Crustacea are a subphylum of arthropods with 67,000 described species. They are part of the phylum Arthropoda. Crustaceans include crabs, lobsters, crayfish, shrimp, krill and barnacles. They are relatives of insects. If the Arthropods are regarded as a superphylum, then the insects and crustacea would be phyla. (see List of animal phyla). The group has an extensive fossil record, reaching back to the Cambrian. Most crustaceans are aquatic, mostly marine. Some have moved onto land permanently. Crustaceans that live on land include some crabs, and woodlice. Crustacea range in size from a parasite 0.1mm long, to the Japanese spider crab with a leg span of up to 14 ft (4.3 m) and a mass of 44 lb (20 kg). The North Atlantic lobster can weigh more than 40 pounds. Most crustaceans are mobile, but some become sessile after their larval stage. Barnacles become attached to rocks on the sea shore. Some are parasitic, like fish lice, and tongue worms. Crustacea usually have separate sexes, and the eggs ...
The Crustacea are a subphylum of pancrustaceans with 50,000 described species. They are part of the phylum Arthropoda. Crustaceans include crabs, lobsters, crayfish, shrimp, krill and barnacles. They are relatives of insects. If the Arthropods are regarded as a superphylum, then the insects and crustaces would be phyla. (see List of animal phyla). The group has an extensive fossil record, reaching back to the Cambrian. Most crustaceans are aquatic, mostly marine. Some have moved onto land permanently. Crustaceans that live on land include some crabs, and woodlice. Crustacea range in size from a parasite 0.1mm long, to the Japanese spider crab with a leg span of up to 14 ft (4.3 m) and a mass of 44 lb (20 kg). The North Atlantic lobster can weigh more than 40 pounds. Most crustaceans are mobile, but some become sessile after their larval stage. Barnacles become attached to rocks on the sea shore. Some are parasitic, like fish lice, and tongue worms. Crustacea usually have separate sexes, and the ...
July 25, 2014. By Marie Zhuikov. Researchers already know that dioxin (a byproduct of burned plastics and industrial processes) is toxic and can contribute to cancer and heart problems in humans, but now they know it can impact a fishs nose tissue. Why should we care? Because fish use their noses to navigate through water and to find streams for spawning.. Wisconsin Sea Grant-funded researcher, Michael Carvan, Shaw associate scientist at the University of Wisconsin-Milwaukee School of Freshwater Sciences, has been studying the impacts of dioxin on rainbow trout (Oncorhynchus mykiss) and zebrafish (Danio rerio). Although zebrafish are not a Great Lakes species like the trout, researchers use them because they are a hardy lab fish about which much is known.. Carvan and his research team fed both young rainbow trout and zebrafish food containing different levels of TCDD (tetrachlorodibenzo-p-dioxin) over a six-week period. They chose to work on juvenile fish because few studies for dioxin exposure ...
The growth hormone (GH)-insulin-like growth factor I (IGF-I) system regulates important physiological functions in salmonid fish, including hydromineral balance, growth, and metabolism. While major research efforts have been directed toward this complex endocrine system, understanding of some key aspects is lacking. The aim was to provide new insights into GH resistance and growth hormone-binding proteins (GHBPs). Fish frequently respond to catabolic conditions with elevated GH and depressed IGF-I plasma levels, a condition of acquired GH resistance. The underlying mechanisms or the functional significance of GH resistance are, however, not well understood. Although data suggest that a significant proportion of plasma GH is bound to specific GHBPs, the regulation of plasma GHBP levels as well as their role in modulating the GH-IGF-I system in fish is virtually unknown. Two in vivo studies were conducted on rainbow trout. In experiment I, fish were fasted for 4 weeks and then refed and sampled ...
Research Summary: This report profiles the major Chinese manufacturers from aspects of background, development history, current technology, current capacity, actual output, and exports, sales, etc. MANUFACTURERS Zhejiang Hisun Pharmaceutical Co., LtdHebei Weiyuan Bio-chemical Co., Ltd.Zhejiang Qianjiang Biochemical Co., Ltd.Shijiazhuang Hongke Biochemistry Science and Technology Co., Ltd.Jiamusi Xingyu Biochemistry Technology Co., Ltd.NCPC Aino Co., Ltd.Shandong Jingbo Agricultural Chemical […].... ...
Trey Reid Assistant Chief of Communications The dwindling population of the endangered Ozark hellbender took a positive turn last month when Arkansas Game and Fish Commission biologists released more than 100 of the rare aquatic salamanders to the Eleven Point River.. It was The Natural States first stocking of captive-bred hellbenders from a breeding program at the St. Louis Zoo, and part of a larger effort to restore populations of the endangered species in the Eleven Point, one of only three streams where Ozark hellbenders persist after decades of declining numbers.. Were stocking the captive-produced Ozark hellbenders to try to maintain the population and hopefully to bolster the population, said AGFC herpetologist Kelly Irwin. This is the first time that weve released individuals back into the wild in Arkansas that were reared from the wild or captive-produced egg clutches.. Ozark hellbenders were placed on the federal endangered species list in 2011. The species inhabited the Spring ...
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Arguloida)". Crustaceana. 80 (11): 1397-1401. doi:10.1163/156854007782605556. hdl:2066/36463. JSTOR 20107932. Boxshall, G. and ...
Branchiurans, family Argulidae, order Arguloida are known as fish lice and parasitize fish in freshwater. Crustaceans portal ...
The Argulidae are the only family in the order Arguloida (occasionally "Arguloidea"), although a second family, the ...
... arguloida MeSH B01.500.131.365.150 - cladocera MeSH B01.500.131.365.150.200 - daphnia MeSH B01.500.131.365.160 - copepoda MeSH ...
Order Rhizocephala Order Thoracica Subclass Tantulocarida No order designations Subclass Branchiura Order Arguloida Subclass ...
Order Harpacticoida Order Misophrioida Order Monstrilloida Order Mormonilloida Order Siphonostomatoida Order Arguloida (Carp ...
Related to Branchiura: Arguloida. ThesaurusAntonymsRelated WordsSynonymsLegend:. Switch to new thesaurus ...
Order Arguloida (fish lice). Wide, flat carapace; paired compound eyes; unsegmented abdomen; 4 pairs of trunk limbs; fish ...
Walter, T.C. & Boxshall, G. (2018). World of Copepods database. Argulus melanostictus Wilson C.B., 1935. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=357225 on 2018-03-25 ...
Walter, T.C. & Boxshall, G. (2018). World of Copepods database. Binoculus caudatus Say, 1818. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=357393 on 2018-03-23 ...
Arguloida)". Crustaceana. 80 (11): 1397-1401. doi:10.1163/156854007782605556. hdl:2066/36463. JSTOR 20107932. Boxshall, G. and ...
Branchiurans, family Argulidae, order Arguloida are known as fish lice and parasitize fish in freshwater. Crustaceans portal ...
Order Arguloida (organism) {710268003 , SNOMED-CT } Parent/Child (Relationship Type) Genus Argulus (organism) {710269006 , ...
Order Arguloida (organism) {710268003 , SNOMED-CT } Other Relationships No other relationships present. ...
Subclass of CRUSTACEA containing one order ARGULOIDA. They have sessile compound eyes and a shieldlike carapace. ...
Define argulus. argulus synonyms, argulus pronunciation, argulus translation, English dictionary definition of argulus. n any of various parasites of the genus Argulus of the family Argulidae which affect fish and are a major threat to their health
Measurements. Total length (mm) 11.32. Carapace length 6; maximum carapace width 7.5. Carapace posterior sinus length1.62; width 1.72. Cephalothorax length 3.98; anterior width 4.25. Abdome length 2.72; width 2.32. Abdome posterior sinus length 1.8; width 0.3. Eyes diameter (µm) 250 left; 225 right; transverse distance between eyes (µm) 775. First maxillae outer diameter (µm) 1400 left; 1350 right; inner diameter 1075 left; 950 right. Number of support rods in suction cups 46-50; number of sclerites per support rod 8-10.. Remarks. The plate of the second maxilla of A. multicolor ...
Animals , Female , Male , Arguloida , Fishes/parasitology , Arguloida/anatomy & histology , Arguloida/classification , ... Animals , Aquaculture , Cichlids/parasitology , Arguloida/classification , Fish Diseases/parasitology , Brazil , Arguloida/ ... Animals , Arguloida , Characiformes/parasitology , Fish Diseases/parasitology , Helminthiasis, Animal/parasitology , Helminths/ ... Animals , Arguloida/parasitology , Characiformes/parasitology , Parasitic Diseases, Animal/classification , Parasitology/ ...
Dive into the research topics where Guadalupe Victoria Contreras Salazar is active. These topic labels come from the works of this person. Together they form a unique fingerprint ...
Animals , Anthelmintics/pharmacology , Antinematodal Agents/pharmacology , Arguloida/drug effects , Communicable Disease ...
Arguloida Yamaguti, 1963 +*Arguloidea Yamaguti, 1963 + * Argulidae Leach 1819 * Argulus O. F. Müller 1785 + ...
Branchiurans , family Argulidae, order Arguloida are known as fish lice and parasitize fish in freshwater. ... Branchiurans , family Argulidae, order Arguloida are known as fish lice and parasitize fish in freshwater. ...
One of the largest orders of mostly marine CRUSTACEA, containing over 10,000 species. Like AMPHIPODA, the other large order in the superorder Peracarida, members are shrimp-like in appearance, have sessile compound eyes, and no carapace. But unlike Amphipoda, they possess abdominal pleopods (modified as gills) and their bodies are dorsoventrally flattened ...
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 ...
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Arguloida [B01.050.500.131.365.070] Arguloida * Cladocera [B01.050.500.131.365.150] + Cladocera + * Copepoda [B01.050.500.131. ...
Arguloida. Brasil. Characiformes. Ectoparasitic Infestations. Female. Fish Diseases. Rivers. Species Specificity. Issue Date: ... Arguloida. Brasil. Characiformes. Classification. Ectoparasitosis. Female. Fish Disease. Histology. Parasitology. Physiology. ...
Arguloida/crescimento & desenvolvimento , Ciclídeos/parasitologia , Doenças dos Peixes/epidemiologia , Doenças dos Peixes/ ... Arguloida/parasitologia , Ciclídeos/parasitologia , Dracunculoidea/isolamento & purificação , Doenças dos Peixes/epidemiologia ... Dracunculoidea/crescimento & desenvolvimento , Dracunculoidea/genética , Larva/genética , Filogenia , Animais , Arguloida/ ...
Arguloida/parasitology , Fishes/parasitology , Rivers/parasitology , Animal Distribution , Animals , Arguloida/anatomy & ...
European Marine Sites, Datasets, Species and Distribution - MarBEF Integrated Data System (MarIDaS)
original description Yamaguti, S. & T. Yamasu. (1959). On two species of Argulus (Branchiura, Crustacea) from Japanese fishes. Biological Journal of Okayama University 5(3-4):167-175, pls.1-2. [details] Available for editors ...
original description (of Argulus zei Brian, 1924) Brian, A. (1924). Copepoda. Copepodes commensaux et parasites des cotes Mauritaniennes. ,em,In: Parasitologica Mauritanica. Matériaux pour la faune parasitologique en Mauritanie.,/em, 1(1):1-66, figs. 1-67, also Bulletin du Comitae detudes Historiques et Scientifiques de lAfrique Occidentale Francoaise 9:363-427, figs. 1-69. [details] Available for editors ...
Looking for argively? Find out information about argively. 1. of or relating to the Greeks besieging Troy, esp those from Argos 2. of or relating to Argos or Argolis 3. a literary word for Greek 4. an ancient Greek,... Explanation of argively
  • Subclass of CRUSTACEA containing one order ARGULOIDA. (bvsalud.org)