We developed a specific competitive enzyme-linked immunosorbent assay (ELISA) for yellowtail kingfish (Seriola lalandi) follicle stimulating hormone (FSH). We previously produced a full-length single chain recombinant yellowtail kingfish FSH using the Pichia pastoris expression system. We used the same method to produce the β subunit of the hormone, against which polyclonal antibodies were raised in rabbits. We first confirmed immunoreactivity of the polyclonal antibodies with the recombinant full length FSH and FSHβ as well as plasma and pituitary FSH of sexually immature and mature yellowtail kingfish by Western blot analysis. We then developed a precise and reproducible ELISA for yellowtail kingfish FSH and validated the assay in plasma and pituitary extracts. The intra- and inter-assay coefficients of variation was ...
Chemosensory receptors, which are all G-protein-coupled receptors (GPCRs), come in four types: odorant receptors (ORs), vomeronasal receptors, trace-amine associated receptors and formyl peptide receptor-like proteins. The ORs are the most important receptors for detecting a wide range of environmental chemicals in daily life. Most fish OR genes have been identified from genome databases following the completion of the genome sequencing projects of many fishes. However, it remains unclear whether these OR genes from the genome databases are actually expressed in the fish olfactory epithelium. Thus, it is necessary to clone the OR mRNAs directly from the olfactory epithelium and to examine their expression status. Eighty-nine full-length and 22 partial OR cDNA sequences were isolated from the olfactory epithelium of the large yellow croaker, Larimichthys crocea. Bayesian phylogenetic analysis classified the vertebrate OR genes into two types, with several clades within each type, and showed that the L.
Baker, E. and B.B. Collette. 1998. Mackerel from the northern Indian Ocean and the Red Sea are Scomber australasicus, not Scomber japonicus. Ichthyol. Res. 45(1): 29-33.. Canales, C.R. 2006. Investigación, evaluación de stock y CTP Caballa 2005 - Fase II. nforme Final - Instituto de Fomento Pesquero: 42.. Caramantin-Soriano H, Vega-Pérez LA, Niquen M. 2008. Growth parameters and mortality rate of the Scomber japonicus peruanus (Jordan & Hubb [sic]) 1925) along the Peruvian coast, South Pacific. Brazil. J. Oceanogr. 56(3): 201-210.. Castro Hernández, J.J. and A.T. Santana Ortega. 2000. ynopsis of biological data on the chub mackerel (Scomber japonicus Houttuyn, 1782). FAO Fish. Synop. 157: 77.. Collette, B.B. 1995. Scombridae. Atunes, bacoretas, bonitos, caballas, estorninos, melva, etc. In: W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter, V.H. Niem (ed.), Guia para la identification de especies para los fines de la pesca, pp. 1521-1543. FAO, Rome.. Collette, B.B. 1999. ...
Newly hatched Artemia nauplii (@450 microns) are too large for croaker larvae to ingest at first feeding. Beginning at day three, post-hatch, rotifers (Brachionus sp.) are a common food source for marine fish larvae due to their smaller size (90-250 microns) although they must be cultured as a live feed. Houde and Ramsey (1971) successfully reared croaker larvae under static conditions by maintaining them for approximately one week in a dense culture of Chlorella phytoplankton followed by a slow water exchange rate with copepod nauplii and other wild zooplankters introduced at that time. Further research feeding copepod nauplii to early larval stages is warranted. However, recommended hatchery production and feeding regimes for croaker have been successful following standard practices for red drum (Sciaenops ocellatus) (Chamberlain et al. 1990). Best results are obtained when larvae are reared in a static culture of Isochrysis galbana (phytoplankton) or similar algae with high levels of ...
A broad biomarker approach was applied to study the effects of marine pollution along the Swedish west coast using the teleost eelpout (Zoarces viviparus) as the sentinel species. Measurements were performed on different biological levels, from the molecular to the organismal, including measurements of messenger RNA (mRNA), proteins, cellular and tissue changes, and reproductive success. Results revealed that eelpout captured in Stenungsund had significantly higher hepatic ethoxyresorufin O-deethylase activity, high levels of both cytochrome P4501A and diablo homolog mRNA, and high prevalence of dead larvae and nuclear damage in erythrocytes. Eelpout collected in Göteborg harbor displayed extensive macrovesicular steatosis, whereby the majority of hepatocytes were affected throughout the liver, which could indicate an effect on lipid metabolism. Results also indicate that eelpouts collected at polluted sites might have an affected immune system, with lower mRNA expression of genes involved in the
The overall goal of this research was to verify the involvement of membrane progestin receptor alpha (mPRα) in mediating progestin-stimulated sperm hypermotility in the Atlantic croaker and southern flounder. Sperm motility in Atlantic croaker and southern flounder were tested with both the endogenous progestin, 17,20β,21-trihydroxy-4-pregnen-3-one (20β-S) or the selective mPRα agonist, 10-ethenyl-19-norprogesterone (Org OD 02-0). In croaker, the Pi3k/Akt/Pde and ErbB2/Mapk intracellular signaling pathways were examined. The role of mPRα in mediating sperm hypermotility and fertility in southern flounder was also studied. The effects of seasonal hypoxia on sperm motility in croaker were investigated in a field study in the northern Gulf of Mexico in the fall of 2010. Finally, the effects of acidified activator solution (simulating ocean acidification) were studied in the laboratory. In vitro, Org OD 02-0 mimicked the stimulatory actions of 20β-S in inducing sperm hypermotility and ...
Red snapper Hg concentrations were dependent on the region of capture within the Gulf, with fish collected off the coast of Alabama having the highest concentrations of Hg, followed by Texas, and then Louisiana. Five percent of fish collected off the coast of Alabama exceeded U.S. Environmental Protection Agency guidelines of 1,500 ng/g dry weight for safe consumption, whereas no fish collected off the coast of Texas and ,1% of fish collected off the coast of Louisiana exceeded these guidelines (Fig. 3). While a majority of Alabama samples were collected from fishing rodeos, which resulted in the average size of fish collected from Alabama being larger than the average size of fish collected from other regions, Alabama red snapper still had higher concentrations of Hg even when equivalent size classes (i.e., 400-600 mm) were considered.. Regional differences in Hg availability may explain observed differences in red snapper Hg concentrations among regions. According to previous studies, direct ...
Hypoxia is an endocrine disruptor, altering estrogen, testosterone, and progestin hormone levels and stunting gonadal growth in Atlantic croaker. Steroids act through specific hormone receptors to alter reproductive functions, and the hormonal response is dependent on the concentrations of these receptors. However, information is currently lacking on the effects of hypoxia on expression and functions of membrane receptors mediating rapid, non-genomic steroid actions such as final oocyte maturation and apoptosis. Atlantic croakers were exposed to normoxia (7.0 mg DO/L) or hypoxia (1.7 mg DO/L) for 6 weeks during their period of gonadal recrudescence (October-December). Relative gene expression was quantified using quantitative real-time PCR (qRT-PCR). mRNA expression of the membrane androgen receptor, ZIP9, was increased in hypoxia-exposed fish compared to normoxia-exposed controls, whereas mRNA expression of the membrane estrogen receptor, GPER, and membrane progestin receptor, mPRα, was ...
Here is a list Ive compiled from multiple sources all over the internet. There are likely more than are listed here. If you do not see one here that needs to be listed, Im sure a nice mod would be happy to add it to the list. :) Clownfish False Percula Clownfish - Amphiprion ocellaris Clarks Clownfish - Amphiprion clarkii Tomato Clownfish - Amphiprion frenatus Gold-Stripe Maroon Clownfish - Premnas biaculeatus Cinnamon Clownfish - Amphiprion melanopus Fire Clownfish - Amphiprion
Here is a list Ive compiled from multiple sources all over the internet. There are likely more than are listed here. If you do not see one here that needs to be listed, Im sure a nice mod would be happy to add it to the list. :) Clownfish False Percula Clownfish - Amphiprion ocellaris Clarks Clownfish - Amphiprion clarkii Tomato Clownfish - Amphiprion frenatus Gold-Stripe Maroon Clownfish - Premnas biaculeatus Cinnamon Clownfish - Amphiprion melanopus Fire Clownfish - Amphiprion
In January 2017, leading recreational fishing organizations released a report that identifies possible management options for the Gulf of Mexico Red Snapper fishery. How to best manage this important recreational fishery has come under increasing scrutiny, and controversy, resulting in growing angler frustration.. The report, Examination of Possible Private Recreational Management Options for Gulf of Mexico Red Snapper, is intended to provide fisheries managers with detailed information about alternative options for managing the fishery that may produce improved fishing access.. The report was produced by the Gulf Angler Focus Group initiative, which was created and supported by the American Sportfishing Association, Coastal Conservation Association, Congressional Sportsmens Foundation and the Theodore Roosevelt Conservation Partnership.. The purpose of the Gulf Angler Focus Group was to develop a compendium of management options that could help ensure a healthy red snapper stock while ...
Amphiprion latifasciatus (Madagascar anemonefish) is a marine fish belonging to the family Pomacentridae, the clownfishes and damselfishes. Clownfish or anemonefish are fishes that, in the wild, form symbiotic mutualisms with sea anemones and are unaffected by the stinging tentacles of the host anemone, see Amphiprioninae § Symbiosis and mutualism. The sea anemone protects the clownfish from predators, as well as providing food through the scraps left from the anemones meals and occasional dead anemone tentacles. In return, the clownfish defends the anemone from its predators, and parasites. Clownfish are small-sized, 10-18 centimetres (3.9-7.1 in), and depending on species, they are overall yellow, orange, or a reddish or blackish color, and many show white bars or patches. Within species there may be color variations, most commonly according to distribution, but also based on sex, age and host anemone. Clownfish are found in warmer waters of the Indian and Pacific oceans and the Red Sea in ...
Red Snapper - Thomas The Fib (remix by Mr Scruff) on Red Snapper - Loopascoopa (CDS/2x12) Warp, 1996.10 Info : Désolé mais là je préfère largement loriginal, extrait de
The nosestripe clownfish or nosestripe anemonefish,skunk clownfish, Amphiprion akallopisos, is an anemonefish (also called clownfish) that lives in association with sea anemones. A. akallopisos is found in the Indian Ocean. It resides in shallow inshore reefs as deep as 15 m with a moderate to strong current. The skunk clownfish can also be kept in captivity by aquarists. The skunk clownfish is identified by a light orange color, with a single, narrow, white stripe running from the mouth to the caudal peduncle, and can grow as large as 11 cm in length.[1] Like other anemonefish, the skunk clownfish is a protandrous hermaphrodite, and maintains a hierarchy within the host anemone that consists of a mating pair, of which the female is the largest, and non-mating males which get progressively smaller in size. A. akallopisos does not have a melanistic variation when associated with Stichodactyla mertensii unlike some other species of anemonefish, including A. chrysogaster, A. chrysopterus, A. ...
A molecular approach was developed to distinguish species of red snappers among commercial salted fish products. The specific fragments of the mitochondrial 12S rRNA gene, which were about 450bp, were obtained using the semi-nested polymerase chain reaction (semi-nested PCR). Subsequently, PCR arnplicons were sequenced, aiming to select restriction endonucleases that generated species-specific restriction fragment length polymorphism (RFLP) profiles. Discrimination of red snappers Lutjanus sanguineus, Lutjanus erythopterus from Lutjanus argentimaculatus, Lutjanus malabarius and other morphologically similar fishes such as Lethrinus leutjanus and Pinjalo pinjalo was feasible by one restriction digestion reaction with three endonucleases Hae III, Sca I and SnaB I, however, for discrimination of L. sanguineus and L. erythopterus, another restriction digestion reaction with single restriction endonuclease Mae II was needed. The semi-nested PCR-RFLP was demonstrated to be reliable in species ...
Thirty immature juvenile grouper Epinephelus coioides (19-168 g bodyweight, BW) were randomly stocked in four units 6 t tanks to determine if mibolerone can be used to induce sex inversion in groupers. After acclimatization and weaning to artificial feed, the feed given daily (4% BW/day) was supplemented with 0, 50, 100, and 200 μg mibolerone/kg feed for about 18 weeks. Thereafter, the hormone treatment was withdrawn and the experiment was terminated at Week 24. Ten fish were killed for gonad histology at stocking to serve as an initial control while about three to five fish were killed every 8 weeks. In general, ovaries of initial controls showed the presence of moderate stromal cells and gonia and few primary oocytes. At Weeks 8 and 16, ovaries of the control fish (0 μg/kg) were similar to that of the initial control except that primary oocytes increased at Week 24. Gonads of fish fed diets containing 100 and 200 μg/kg had none to moderate spermatocytes and few spermatids at Week 8 and 16, ...
Parenti, P. & J.E. Randall 2000: An annotated checklist of the species of the Labroid fish families Labridae and Scaridae. Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology, 68: 1-97 ...
When conducting digestibility experiments with fish many researchers encounter problems that result in erroneous digestibility coefficients. Erroneous digestibility coefficients result from variability in the raw data which is amplified by the formulae used to calculate them. Variation can stem from natural differences in the digestibility of the same diet between individuals or groups of fish. It can also creep insidiously into studies due to poor preparation and mixing of ingredients or problems with the collection of faecal material or the veracity of analytical results. Therefore, it is fairly common to expect variability in data collected from digestibility trials with fish. But what can be done about it? In this paper, we present an experiment with yellowtail kingfish (Seriola lalandi) that was done to determine whether the digestibility of extruded wheat (EW) was affected by its inclusion rate (10, 20, 30 or 40% diet(-1)). The experiment, based on the indicator-ratio method, was conducted ...
Setting up home in the stinging tentacles of a sea anemone might seem like a risky option, but anemonefish - popularly known as clownfish - are perfectly content in their unlikely abode. Fending off peckish anemone predators in return for refuge, plucky clownfish have achieved a satisfactory arrangement with their deadly partners. Yet Joe Szczebak from Auburn University, USA, wondered whether there might be more to the unconventional collaboration than met the eye. According to Szczeback, coral reefs are awash with oxygen during the day, but levels can plummet overnight when photosynthesis has ceased. Adding that some damselfish waft oxygen-rich water over corals at night to supplement their oxygen supply, Szczebak wondered whether clownfish might have struck a similar deal with their anemone hosts. There had been almost no research done on the clownfish-anemone mutualism at night, explains Szczebak, so he and his Masters thesis advisor, Nanette Chadwick, decided to find out whether clownfish ...
Investigation of the Gene Encoding Isotocin and its Expression in Cinnamon Clownfish, Amphiprion melanopus - Arginine vasotocin;cinnamon clownfish;isotocin;osmoregulation;
Background Clownfishes (Pomacentridae) are brightly colored coral reef fishes well known for their mutualistic symbiosis with tropical sea anemones. These fishes live in social groups in which there is a size-based dominance hierarchy. In this structure where sex is socially controlled, agonistic interactions are numerous and serve to maintain size differences between individuals adjacent in rank. Clownfishes are also prolific callers whose sounds seem to play an important role in the social hierarchy. Here, we aim to review and to synthesize the diversity of sounds produced by clownfishes in order to emphasize the importance of acoustic signals in their way of life. Methodology/Principal Findings Recording the different acoustic behaviors indicated that sounds are divided into two main categories: aggressive sounds produced in conjunction with threat postures (charge and chase), and submissive sounds always emitted when fish exhibited head shaking movements (i.e. a submissive posture). Both types of
TY - JOUR. T1 - Effects of synthetic kisspeptin peptides and GnRH analogue on oocyte growth and circulating sex steroids in prepubertal female chub mackerel (Scomber japonicus). AU - Selvaraj, Sethu. AU - Ohga, Hirofumi. AU - Nyuji, Mitsuo. AU - Kitano, Hajime. AU - Nagano, Naoki. AU - Yamaguchi, Akihiko. AU - Matsuyama, Michiya. PY - 2015/8/1. Y1 - 2015/8/1. N2 - In recent years, kisspeptin peptides, encoded by kiss genes have been used to manipulate reproductive processes in farmed animals, including fish. Our previous studies demonstrated that the chub mackerel brain expresses kiss1 and kiss2 and intramuscular injection of synthetic Kiss1 pentadecapeptide (Kiss1-15) but not Kiss2 dodecapeptide (Kiss2-12) accelerates spermatogenesis in prepubertal male chub mackerel (Scomber japonicus). In the present study, we evaluated their effects in prepubertal female chub mackerel. The gonadosomatic index (GSI) values of experimental fish did not show any significant changes. Condition factor (CF) values ...
The snappers are a prominent family of predatory fishes found in all tropical waters and often associated with reef or mangrove habitats. The deeper-water species, in particular, are an important component of fisheries in the Caribbean and the Gulf of Mexico. There are numerous snapper species in the region and most of them can be found on or near coral reefs. The shallow-water snappers are almost all members of the large genus Lutjanus. The one exception, the Yellowtail Snapper Ocyurus chrysurus, falls well within the Lutjanus clade in phylogenetic studies. There are four additional deep-water lutjanid genera, three of which have only a single Caribbean representative.. Larval snappers exhibit the standard percoid characters shared to some degree by many other families: a wide body, large round eye, large terminal mouth, stout spines in the fins and a short anal fin with three spines. Later-stage lutjanid larvae are distinctive in having a large non-serrated spine at the angle of the ...
A 6 °C increase in temperature resulted in significant increases in Umax,c and COTnet in S. japonicus. Standard metabolic rate (SMR) was expected to vary with temperature, but did not, possibly because the fish were acclimated to their respective temperatures or because of the relatively small temperature difference and the large error associated with extrapolation to obtain the SMRs. The only other comparable energetics data for mackerel are from Shadwick and Steffensen (2000), who estimated SMR at 14-15 °C for S. japonicus using procedures similar to those in the present study. Their values (90-120 mg O2 h-1 kg-1 for 145-199 g fish) fall within the range that we measured for similar-sized fish (85-290 mg O2 h-1 kg-1 for 145-179 g fish at 18 °C and 95-177 mg O2 h-1 kg-1 for 144-156 g fish at 24 °C). Thus, when estimated by extrapolation to zero speed, there seems to be little measurable change in SMR between 14 and 24 °C for S. japonicus when fish are acclimated to the respective ...
Lepidophagous (scale-eating) blue-striped fangblennies ( Plagiotremus rhinorhynchus Bleeker 1852) are often found sympatrically with the bluestreak cleaner wrasse ( Labroides dimidiatus Valenciennes 1
Spotted wolffish Anarhichas minor reproduction in captivity is dependent on in vitro fertilization. However, it is often challenging to acquire sufficient fresh sperm to fertilize the eggs that are obtained. In this study ...
Visit Texas in the winter to experience great Red Snapper action. During the cooler months, red snapper fishing is the best in the Gulf.
Despite vehement opposition from recreational-fishing advocacy groups, the Louisiana Department of Wildlife and Fisheries says it has worked up a pilot program that will award a significant portion of the states red snapper haul to select recreational anglers. The department announced the plan in a Thursday afternoon press release, just one day after meeting with pro-recreational fishing groups and mentioning nothing about the program. The structure would be similar to what exists in the commercial sector, where fishers have been awarded percentages of the overall commercial quota, and may harvest their red snapper at any time during the year. The system, called individual fishing quotas, has been panned by recreational-fishing organizations as well as good-government groups because it has set up so-called Sea Lords, who own quota and make hundreds of thousands of dollars on a public resource without ever leaving the dock. click here to read this story 20:20. ...
Introduction. Goldband snapper (Pristipomoides multidens) has an unusually long shelf life compared to many other fish species. Previous studies have indicated that the microflora present on the fish skin influences shelf life, however, no extensive studies have been performed. A comprehensive investigation into the shelf life of goldband snapper was undertaken in this study using microbiological, biochemical, sensory and physical analyses. Saddletail snapper (Lutjanus malabaricus) was used as a control species because it is genetically similar to goldband snapper, found in a similar geographic location but has a shorter shelf life. The implications of discovering the reasons for an increased shelf life are significant for the Australian fishing industry, in particular Western Australia, where transit times are extensive. It may be possible to use the knowledge gained by investigating goldband snapper to extend the shelf life of other tropical fish species.Methods. Bacterial viable counts were ...
1.Indirect interactions resulting from changes in organismal traits such as behaviour, i.e. trait-mediated indirect interactions (TMIIs), are widespread in biological communities, yet few studies have explored the potential for mutualisms to initiate TMIIs. 2.This study used a combination of behavioural observations and manipulative field experiments to investigate potential TMIIs resulting from a mutualism between specialized cleaner fish and theclients that visit cleaners for the removal of ectoparasites. 3.Behavioural observations indicate that the bluestreak cleaner wrasse, Labroides dimidiatus, increases local predation pressure on corals at cleaner stations by attracting corallivorous butterflyfish to their territories. 4. Observations of the ornate butterflyfish, Chaetodon ornatissimus, suggest a trade-off between seeking cleaning and foraging; individuals decreased their foraging rate at cleaner stations and shifted their diet to include a greater proportion of less preferred prey ...
iiF, REF~~ copy & t, Do Not Remove from the Library lJ. S. Fish and Wildlife Service National Wetlands Research Center Biological k?pOrt 82( 10.98) JUNE 1985 HABITAT SUITABILITY INDEX MODELS: JUVENILE ATLANTIC CROAKER (Revised) Fish and Wildlife Service U.S. Department of the Interior This model is designed to be used by the Division of Ecological Services in conjunction with the Habitat Evaluation Procedures. This is one of the first reports to be published in the new Biological Report series. This technical report series, published by the Research and Development branch of the U.S. Fish and Wildlife Service, replaces the FWS/OBS series published from 1976 to September 1984. The Biological Report series is designed for the rapid publication of reports with an application orientation, and it continues the focus of the FWS/OBS series on resource management issues and fish and wildlife needs. Biological Report 82(10.98) June 1985 HABITAT SUITABILITY INDEX MODELS: JUVENILE ATLANTIC CROAKER ...
The genetic diversity and population structure of the small yellow croaker (Larimichthys polyactis) were investigated based on seven microsatellite markers. Two hundred and twenty-six individuals were collected from ten locations from the Bohai Sea, the Yellow Sea and the East China Sea. Relatively high genetic variation (He = 0.826-0.873) and very low genetic differentiation (Fst = 0.001-0.029) between populations were checked, which were attributed by high mutation rate, large population size, wide distribution and diverse habitats. L. polyactis had not undergone recent genetic bottleneck events, which was supported by Wilcoxon signed-rank test and mode-shift indicator of allele frequency distribution. UPGMA tree revealed that the cluster results had no connection with isolation by distance. The knowledge on genetic diversity and population structure will be crucial to establish appropriate fishery management for the species.
Elevated carbon dioxide (CO2) concentration in seawater has previously been demonstrated to have a range of negative impacts on marine fish. While ocean acidification is a well-known context in which elevated CO2 occurs, fish reared in recirculating aquaculture systems (RAS) may also be exposed to elevated CO2, and at concentrations which are even many times higher. The yellowtail kingfish (Seriola lalandi) and snapper (Chrysophrys auratus) are two marine fish species of high economic value in New Zealand which may be affected by elevated CO2 concentrations. To assess the effect of elevated CO2 on the growth, feed conversion, and respiratory physiology of yellowtail kingfish, juvenile kingfish (~230g) were reared in a 54 day growth-trial under the following CO2concentrations: (1) ,5mgL-1(ambient-control), (2) 10-15mgL-1, (3) ~20mgL-1, (4) ~30mgL-1, (5) ~40mgL-1 Specific growth rates (SGRM) were greatest in ambient CO2 concentration (1), but this did not significantly differ from concentration ...
MnemonicDictionary.com - Meaning of scomber japonicus and a memory aid (called Mnemonic) to retain that meaning for long time in our memory.
The blue-striped snapper Lutjanus kasmira (Perciformes, Lutjanidae) are cosmopolitan in the Indo-Pacific but were introduced into Oahu, Hawaii, USA, in the 1950s and have since colonized most of the archipelago. Studies of microparasites in blue-striped snappers from Hawaii revealed chlamydia-like organisms (CLO) infecting the spleen and kidney, characterized by intracellular basophilic granular inclusions containing Gram-negative and Gimenez-positive bacteria similar in appearance to epitheliocysts when seen under light microscopy. We provide molecular evidence that CLO are a new member of Chlamydiae, i.e. Candidatus Renichlamydia lutjani, that represents the first reported case of chlamydial infection in organs other than the gill in fishes. ...
T-cell surface glycoprotein CD8 consists of two distinguished chains, termed α and β chains, and functions as a co-receptor for the T-cell receptor by binding to MHC class I proteins. In this study we report the cloning and identification of both CD8α and CD8β genes from orange-spotted grouper (Epinephelus coioides). The predicted grouper CD8α and CD8β proteins were structurally similar to other f ...
1. Color on the mouth. PKs were the first ever designer clownfish to have a large amount of color on the mouth and jaw. A few individuals even have completely colored mouths!. 2. Color on the face. Every PK has swirls of color throughout the face. The variety of facial coloration patterns is absolutely amazing!. 3. Color on the eyes. PKs have color on the outer portion of the eye called the sclera. Some PKs have the entire sclera colored all the way around and some even have a sclera with semi patterning!. 4. Color on the pectoral fins. PKs are the first designer clownfish in history that has been sold with patterning on the pectoral fins! Individuals with large amounts of pectoral fin patterning are breathtaking to watch in person!. 5. Color on the soft dorsal. Many PKs have coloration on the soft dorsal. Spots and swirls in this area really add a lot to their overall look!. 6. Color on the tail. PKs are also the first designer clownfish in history that has been sold with patterning on ...
The clown fish is a kind of fish. Clownfishes habitat usually is a coral reefs. Clownfish live in the Indian Ocean and the Pacific Ocean, from north west Australia, the coast of South East Asia as far north as Japan.[1] Often, they live in a symbiosis with other animals, for instance the sea anemone. They live in anemones which are like plants under the sea. Anemones eat fish by killing them with their tentacles which are poisonous. Scientists believe that clown fish are protected from the poison because they are coated in a type of mucus.[1] Some kinds of clown fishes can grow up and reach 18 centimeters (7.1 inches). Sometimes clownfishes only grow 10 centimeters (3.9 inches). They can be orange, yellow or they may look a little red. Clownfishes eat small invertebrates that are dangerous to the anemones. That helps the anemones and the clownfishes. This is called mutualism. ...
BOZA-ABARCA, J et al. Hormone-induced spawning of wild and captive-grown spotted rose snapper Lutjanus guttatus using carp pituitary suspension and human chorionic gonadotropin. Cienc. mar [online]. 2011, vol.37, n.2, pp.125-139. ISSN 0185-3880.. Hormone-induced spawning of the spotted rose snapper Lutjanus guttatus was studied using wild and cage-grown fish. Carp pituitary suspension (CPS) and human chorionic gonadotropin (hCG) were assessed. Wild females (0.7-2.1 kg body weight (BW), n = 18) were collected by hook and line in the Gulf of Nicoya, Costa Rica, to induce final maturation and ovulation in the laboratory. In the first experiment, five doses of CPS were evaluated and spawning was only observed at the higher doses (4.0 and 4.5 mg CPS kg-1 BW); the doses used were lower than for other species under similar conditions. In the second experiment, CPS and hCG protocols were compared using cage-grown broodstock (n = 30 females, 462-995 g; n = 60 males, 400-600 g); egg production was more ...
The Pomacentridae (damselfish) and Apogonidae (cardinalfish) are among the most common fish families on coral reefs and in the aquarium trade. Members of both families undergo a pelagic larvae phase prior to settlement on the reef, where adults play key roles in benthic habitat structuring and trophic interactions. Fish-associated microbial communities (microbiomes) significantly influence fish health and ecology, yet little is known of how microbiomes change with life stage. We quantified the taxonomic (16S rRNA gene) composition of whole gut microbiomes from ten species of damselfish and two species of cardinalfish from Lizard Island, Australia, focusing specifically on comparisons between pelagic larvae prior to settlement on the reef versus post-settlement juvenile and adult individuals. On average, microbiome phylogenetic diversity increased from pre- to post-settlement, and was unrelated to the microbial composition in the surrounding water column. However, this trend varied among species,
In recent years the increased prevalence of chemotherapeutant resistance in salmon lice has led to dramatic changes in lice management in the Norwegian aquaculture industry. Use of cleaner fish for biocontrol of salmon lice has increased significantly over the last three years in all regions from Rogaland to Nordland. According to the FHL webside www.lusedata.no, 40% of all Norwegian salmon localities use cleaner fish as part of their louse control strategy.. The most common fish currently in use are wild-caught goldsinney,-ballan-, and corkwing wrasse. An estimated 16 million wrasse were captured for this purpose in 2010. Farming of ballan wrasse and lumpsucker remain in the pioneer phase. There is a huge requirement for knowledge relating to health management in cleaner fish species, in particular there is a need for identification and characterisation of the main diseases affecting these fish. Only when the main diseases are identified can preventative and ameliorating measures, including ...
PubMed journal article: Evaluation of genotoxicity of PCP and 2,4-D by micronucleus test in freshwater fish Channa punctatus. Download Prime PubMed App to iPhone, iPad, or Android
This study aimed to evaluate the shelf-life of mechanically filleted well-fed Atlantic mackerel during frozen storage at −25 °C and effect of treatment with antioxidants (sodium erythorbate and a polyphosphate mixture) and different antioxidant application methods (dipping, spraying and glazing). Both physicochemical measurements and sensory analysis were applied. Antioxidant treatments prolonged shelf-life of mackerel. Sensory analysis indicated that untreated fillets had a shelf-life of less than 2.5 months, while all antioxidant treated fillets exceeded that. The most effective treatment, dipping fillets into a sodium erythorbate solution, yielding a shelf-life of 15 months. Physicochemical methods used to evaluate degradation of lipids in the fillets were free fatty acids (FFA), lipid hydroperoxides (PV) and thiobarbituric acid reactive substances (TBARS). They did not correlate with sensory results and might therefore be a questionable choice for evaluation of oxidation and development of rancid
Gonadal-specific aromatase encoded by cyp19a1a is the important enzyme controlling estrogen biosynthesis in teleosts. In the present study, the cDNA sequence of cyp19a1a was cloned and characterized from miiuy croaker Miichthys miiuy. The cDNA encoded a protein of 519 amino acids with five structural regions. Higher identities of amino acid sequences and conserved structural regions were found between Mmcyp19a1a and other cyp19a1a genes. In addition, Mmcyp19a1a was clustered together with other seawater fishes. Immunohistochemical analysis revealed that Mmcyp19a1a was localized exclusively in the cytoplasmic of thecal and granulosa cells surrounding the oocytes. Both the protein and mRNA levels of Mmcyp19a1a were increased significantly at the stage III follicles (mid-vitellogenic) and then decreased along with vitellogenesis ...
The cause of ongoing mortality in barramundi Lates calcarifer (Bloch) in seawater culture was identified as Streptococcus iniae by biochemical and physiological tests. This is the first published record of this bacterial species in Australia and the first confirmed report of S. iniae causing mortality in barramundi. The bacterium was highly pathogenic for barramundi when challenged by bath exposure. The pathogen was found to have a LD sub(50) of 2.5 x 10 super(5) and 3.2 x 10 super(4) colony-forming units at 48 h and 10 d respectively. Experimental challenge of barramundi resulted in high levels of mortality (,40%) within a 48 h period. Ten days after the challenge, S. iniae could not be isolated from kidney, spleen, liver or eye of surviving fish. However, the organism was easily isolated from the brain of both moribund and healthy fish, indicating that barramundi can carry the bacterium asymptomatically.. ...
Sturve J., Berglund Å., Balk L., Broeg K., Böhmert Björn, Massey S., Savva D., Parkkonen J., Stephensen E., Koehler A. and Förlin L. 2005. Effects of dredging in Göteborg harbour, Sweden assessed by biomarkers in eelpout (Zoarces viviparus). Environmental Toxicology and Chemistry 24, 1951-1961.. Gercken J., Förlin L. and Andersson J. 2006 Developmental disorders in larvae of eelpout (Zoarces viviparus) from German and Swedish Baltic coastal waters. Marine Pollution Bullentin 53, 497-507.. Samuelsson L.M., Förlin L., Karlsson G., Adolfsson-Erici M. and Larsson D.G.J. 2006 Using NMR metabolomics to identify response of an environmental estrogen in blood plasma of fish. Aquatic Toxicology 78, 341-349.. Albertsson E., Kling P., Gunnarsson L., Larsson D.G.J. and Förlin L. 2007. Proteomic analyses indicate induction of hepatic carbonyl reductase/20β-hydroxysteroid dehydrogenase B in rainbow trout exposed to sewage effluent. Ecotoxicology and Environmental Safety, in press.. ...
Marine fish has been shown to be susceptible to parasites, bacteria, viral and fungal infections. In marine environment, Vibrio species are commonly found and can lead to an infection known as vibriosis. Vibriosis causes bloody lesion to the fish muscles and extensive haemorrhage to the internal organs to the marine fish. It is a zoonotic disease causing septicaemia, gastroenteritis and necrotising fasciitis following exposure of wounds to contaminated sea water or fish. In this study, we examined and sampled tiger grouper (Epinephelus fuscoguttatus ) cultured in deep sea cages until harvest time. The sampling period was started from February to August 2014, following more than 50% mortality. Clinical signs were noted and compared with the microbiological isolations, especially Vibrio spp. and specific viral isolations. Histopathology changes and water quality parameters were also noted. Fish infected with vibriosis showed signs of body ulcerations and haemorrhages of the fins and body with ...
TY - JOUR. T1 - Cloning and characterisation of type I interferon receptor 1 in orange-spotted grouper (Epinephelus coioides) for response to nodavirus infection. AU - Tang, Zhi Zhuang. AU - Wang, Ting Yu. AU - Chen, Young Mao. AU - Chen, Tzong Yueh. N1 - Funding Information: This research was supported by the Ministry of Science and Technology, Taiwan (MOST 103-2313-B-006-004-MY3, 105-2321-B-006-027 and 106-2321-B-006-015) and the Headquarters of University Advancement at the National Cheng Kung University granted by the Ministry of Education, Taiwan. Funding Information: This research was supported by the Ministry of Science and Technology, Taiwan ( MOST 103-2313-B-006-004-MY3 , 105-2321-B-006-027 and 106-2321-B-006-015 ) and the Headquarters of University Advancement at the National Cheng Kung University granted by the Ministry of Education, Taiwan . Publisher Copyright: © 2020 Elsevier Ltd Copyright: Copyright 2021 Elsevier B.V., All rights reserved.. PY - 2020/6. Y1 - 2020/6. N2 - Grouper ...
The Notothenioidei dominates the fish fauna of the Antarctic in both biomass and diversity. This clade exhibits adaptations related to metabolic function and freezing avoidance in the subzero Antarctic waters, and is characterized by a high degree of morphological and ecological diversity. Investigating the macroevolutionary processes that may have contributed to the radiation of notothenioid fishes requires a well-resolved phylogenetic hypothesis. To date published molecular and morphological hypotheses of notothenioids are largely congruent, however, there are some areas of significant disagreement regarding higher-level relationships. Also, there are critical areas of the notothenioid phylogeny that are unresolved in both molecular and morphological phylogenetic analyses. Previous molecular phylogenetic analyses of notothenioids using partial mtDNA 12S and 16S rRNA sequence data have resulted in limited phylogenetic resolution and relatively low node support. One particularly controversial result
Sedative Effect of Clove Oil and 2-Phenoxyethanol on Marine Clownfish (Amphiprion ocellaris) and Freshwater Swordfish (Xiphophorus helleri)
A Review of the Gulf of Mexico Red Snapper Fishery UNITED ST ATES DEPART MENT OF THE INTERIOR u.s. FISH AND WILDLIFE SERVICE BUREAU OF COMMERCIAL FISHERIES Circular 208 (ov r photo. -- 1 h r d n pp r, Lut.j nu YD. UNITED STATES DEPARTMENT OF THE INTERIOR Walter J. Hickel, Secretary Russell E. Train, Under Secretary Leslie L. Glasgow, Assistant Secretary for Fish and Wildlife, Parks, and Marine Resources Charles H. Meacham, Commissioner, U.S. FISH AND WILDLIFE SERVICE H. E. Crowther, Director, BUREAU OF COMMERCIAL FISHERIES A Review of the Gulf of Mexico Red Snapper Fishery By JAMESS. CARPENTER Ci rc ular 208 Washington, D.C. August 1965 l V 5 CUS n ( US ocUS F oGS CONTENTS P age .\b - tract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Introdu ction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Hi. to ry 2 \ e:::;el::; . ...
Mitochondrial membranes in cardiac muscle from Antarctic notothenioid fishes vary in phospholipid composition and membrane fluidity ...
Centrarchid fishes, also known as freshwater sunfishes, include such prominent species as the Largemouth Bass, Smallmouth Bass and Bluegill. They are endemic to Eastern North America where they form part of a multi-million dollar sports fishing industry, but they have also been widely introduced around the globe by recreational anglers, in aquaculture programs and by government fisheries agencies. Centrarchid Fishes provides comprehensive coverage of all major aspects of this ecologically and commercially important group of fishes. Coverage includes diversity, ecomorphology, phylogeny and genetics, hybridization, reproduction, early life history and recruitment, feeding and growth, ecology, migrations, bioenergetics, physiology, diseases, aquaculture, fisheries management and conservation. Chapters have been written by well-known and respected scientists and the whole has been drawn together by Professors Cooke and Philipp, themselves extremely well respected in the area of fisheries management ...
ADCNR recognizes the impact that local weather has on the landings this season and will continue to monitor the fishing effort, catch rates, and average fish size to determine if the season length will need to be adjusted. The goal of the state-managed plan is to ensure that anglers fishing from Alabama have the opportunity to catch the states fish allocation but not exceed those pounds. The critical portion of managing the quota is accurate and timely reporting by anglers through the Snapper Check program. Any landings amount above the quota in 2019 will be deducted from the 2020 quota prior to the start of the 2020 season. There have been a lot of nice red snapper landed in Alabama this year despite the rough waters, said Chris Blankenship, Commissioner of the Alabama Department of Conservation and Natural Resources. We are a little below our projections due to the winds earlier this month. We hope the winds are fairer through the Fourth of July holiday weekend, so people can enjoy ...
The Asian seabass (Lates calcarifer), which is also commonly known as barramundi, is a protandrous hermaphrodite. Typically, this perciform teleost matures as a functional male at 2-4 years of age and subsequently changes sex to female at subsequent spawning seasons [1-3]. Due to this process, Asian seabass females are generally larger than males.. Primary females that do not appear to go through the male phase, as well as males that do not undergo sex change, may also exist, and these possibilities have been inferred from the presence of young, small-sized females and old males, respectively [1, 3]. In addition, despite the late sexual maturation age of the species, early testis differentiation can be found in Asian seabass that are grown in intensive freshwater recirculation systems at as early as 9 months old [4].. Although the development of Asian seabass gonads has been well studied morphologically and histologically, the underlying molecular data regarding their development is lacking ...
Staphylococcus aureus; RNA-binding proteins; T-lymphocytes; polypeptides; viral diseases of animals and humans; recombinant fusion proteins; brain; interleukin-2; tissue distribution; amino acids; spleen; gene expression regulation; introns; bacterial infections; pathogens; Vibrio vulnificus; transcription factors; complementary DNA; conserved sequences; immune response; kidneys; molecular cloning; exons; zinc finger motif; quantitative polymerase chain reaction; liver; Singapore grouper iridovirus; Saccharomyces cerevisiae; fish diseases; grouper; Epinephelus coioides; sequence ...
Surgeonfishes show varying degrees of habitat preference and utilization of coral reef habitats, with some species spending the majority of their life stages on coral reef while others primarily utilize seagrass beds, mangroves, algal beds, and /or rocky reefs. The majority of surgeonfishes are exclusively found on coral reef habitat, and of these, approximately 80% are experiencing a greater than 30% loss of coral reef area and degradation of coral reef habitat quality across their distributions. However, more research is needed to understand the long-term effects of coral reef habitat loss and degradation on these species populations. Widespread coral reef loss and declining habitat conditions are particularly worrying for species that recruit into areas with live coral cover, especially as studies have shown that protection of pristine habitats facilitate the persistence of adult populations in species that have spatially separated adult and juvenile habitats (Comeros-Raynal et al. 2012 ...
Sitemap for Wine-pairings, Section R/1086. This section includes Roasted Red Snapper with Rosemary Recipe Giada De Laurentiis Recipes Food Network, Roasted Reds with Herbs, Roasted Red Yellow Pepper Salad, Roasted Reuben Tenderloin, Roasted rhubarb, Roasted Rhubarb and Strawberries, Roasted Rhubarb Compote, Roasted Rhubarb Recipe, Roasted Rhubarb, Strawberry and Rosemary Prosecco Cocktail, Roasted Rhubarb Tarts with Strawberry Sauce, Roasted Rhubarb With Honey and Granola Yoghurt, Roasted Rhubarb with Rose Water and Strawberry Sorbet, Roasted Rib-Eye Steak with Herbed Mustard Sauce and Root Vegetables, Roasted rib of beef with horseradish Yorkshire pudding and leek gratin, Roasted Rice Balls Onigiri Yaki, Roasted Ricotta Tomatoes, Roasted Romaine, Vegetables and a Sweet Warm Egg Dressing, Roasted Romaine with Pine Nut Vinaigrette Recipe, Roasted Romanesco, Roasted Romanesco Broccoli
See all results for Grilled Red Snapper With Lemongrass, Chili Shallot Recipes. Find more recipes at Foodily.com - the largest recipe search site - and see the ones your friends like.
Developmental and reproductive effects of 17β-estradiol (E2) exposure on two generations of fathead minnows and one generation of bluegill sunfish were assessed. Fish were exposed to E2 for six continuous weeks in outdoor mesocosms simulating natural lake environments. First generation fish were exposed while sexually mature. Second generation fathead minnows were exposed either during early development, sexual maturity, or both stages. Multiple endpoints were measured to assess effects of E2 exposure on fecundity and fish health and development. Plasma vitellogenin concentrations were highly variable in all fish. Differences in egg production timing for both species indicate differences in fecundity between females exposed to E2 and controls. First generation fathead minnows exposed to E2 had lower body condition factors and reduced secondary sexual characteristic expression by males. Only a difference in relative liver weight was observed in second generation fathead minnows. First generation
The Acute and Chronic Effects of Standard Sodium Alkyl Benzene Sulfonate Upon the Pumpkinseed Sunfish, Lepomis gibbosus (Linn.) and the Bluegill Sunfish L. macrochirus Raf. J. CAIRNS, JR., Curator and A. SCHEIER, Biologist Department of Limnology Academy of Natural Sciences Philadelphia, Pennsylvania A number of comparatively recent publications have noted the striking expansion in use of synthetic detergents which has occurred in the past 12 years (1,2,3,4,5). The most common active agent in these detergents is alkyl benzene sulfonate (ABS); Vaughn (5) and Hammerton (6) have indicated that synthetic detergents occur persistently in a variety of natural waters. Thus, it is quite likely that fish and other aquatic organisms will be continuously exposed to these materials except in areas quite remote from civiliza - tion. The purpose of the experiments reported in this paper was to determine the chronic or long-term effects of sublethal concentrations of ABS upon the ability of sunfish to ...
Archer fish have been observed to knock down prey with a precise jet of water that is six times as powerful as the fish could generate with its own muscles. This allows the archer fish to take down aerial prey from inside the water.. The scientists published their findings in the journal PLoS ONE. This behavior of Toxotes jaculatrix was first described in the 18th century. The fish lives in mangrove forests and estuaries where there are many insects above water. This impressive strategy allows the archer fish to fetch food that would usually be out of its reach. The water jet can target and dislodge a single insect so that it falls into the water for the fish to consume.. Its still a mystery how T. jaculatrix is able to do so in less in a second. Scientists have hypothesized that the existence of a special organ in the fish body was the source. In this study, scientists put archer fish in to an aquarium to measure how accurate their water jet was. The fish was able to spout water at targets up ...
This study reports on two experiments in which the use of enzyme- and acid-treated fish meal were evaluated for incorporation into formulated microbound diets for barramundi (Lates calcarifer) larvae. In the first experiment, partially hydrolysed fish meal was used to determine whether partial hydrolysis increased the dietary value of fish meal used in microbound diets fed to L. calcarifer larvae. Total length and dry weight at the end of the experiment were both higher for larvae fed diets containing untreated fish meal than those fed diets containing any level of hydrolysate. Larval survival ranged from 15.8% to 47.2% but there were no significant differences between treatments (Fig. 3; P | 0.05). Carcass pepsin levels of larvae fed diets containing untreated fish meal were significantly higher than pepsin levels of larvae fed all other diets (P | 0.05). The second experiment determined the effects of incorporating graded levels of denatured fish meal (DF) into microbound diets for L. calcarifer
Snapper Clamp. 3/8 in 3/8-inch Plastic inch Snapper inch Clamp for Vinyl Hose. Use on thin or regular wall vinyl hose only. Keeps hose in place. Snapper Clamp. 3/8 in [FI581] - Tubing - Pumps, Irrigation & Watering Supplies - Gardening & Hydroponics Store -
Keep Your Friends Close, BUT! … Your Anemones CLOSER! Sure, there were lots of reasons for Nemo to bust out of that Dentist office aquarium. In our version of the story, it was mostly because he couldnt bear to live outside of his anemone. Nemo is a clownfish, also known as anemonefish because these fish make their homes in anemones. Of over 1,000 anemone species worldwide, only 10 coexists with tropical clownfish. The fish and its anemone are in a symbiotic relationship - this means that the fish benefits from the anemone and vice versa. Clownfish are the only fish capable of living in an anemone without getting stung by its tentacles. Like their relatives, jellies and corals, anemones have stinging cells on their tentacles. How do the clownfish escape being stung? They have a slimy mucus covering that protects them from the stinging tentacles. Scientists know this because they took clownfish, wiped off the covering, and found that the fish would get stung when they were returned to their home
Freshwater gobies played an important role in the Miocene paleolakes of central and southeastern Europe. Much data have been gathered from isolated otoliths, but articulated skeletons are relatively rare. Here, we review a rich assemblage of articulated gobies with abundant otoliths in situ from the late early Miocene lake deposits of Klinci in the Valjevo freshwater lake of the Valjevo-Mionica Basin of Serbia. The fauna was originally described by Anđelković in 1978, who noted many different fishes, including one goby (Gobius multipinnatus H. v. Meyer 1848), and was subsequently revised by Gaudant (1998), who collapsed all previously recognized species into a single gobiid species that he described as new, namely Gobius serbiensis Gaudant 1998. Our review resulted in the recognition of three highly adaptive extinct freshwater gobiid genera with four species being divided among them: Klincigobius andjelkovicae n.gen. and n.sp., Klincigobius serbiensis (Gaudant 1998), Rhamphogobius varidens n.gen. and
The environmental health of aquatic ecosystems depends amongst others, on the chemical pollution coming from activities in the catchments area. In the Swan River Estuary, Western Australia, the chemical pollutants of concern released into the river are petroleum hydrocarbons and sodium pentachlorophenate (NaPCP). Decreased water quality causes a loss of biotic diversity especially amongst fish populations. The health of aquatic ecosystems can be monitored by fish health, especially fish located at higher levels in the food chain. Pink snapper (Pagrus auratus), an endemic Western Australian fish species, was tested for its potential as a bioindicator of aquatic environmental health. This thesis presents data on the responsiveness of pink snapper to the contaminants of concern, using biomarkers such as serum sorbitol dehydrogenase (SDH), mixed function oxygenase (MFO), metabolic enzymes such as citrate synthase (CS), cytochrome C oxidase (CCO) and lactate dehydrogenase (LDH) and the histological ...
This study will apply the results of current research that I am performing on descender devices (Patterson and Calay research in progress funded by the NMFS Cooperative Research Program in collaboration with the Ocean Tracking Network, Halifax, Nova Scotia) to stock dynamics and management recommendations for GOM recreational reef fish fisheries. This current research uses a novel largescale offshore acoustic telemetry array and external acoustic-tagged red snapper. The effect of release method (released at the surface or returned to the bottom with a descender device) on discard mortality will be assessed. Updated discard mortality estimates (both with and without the use of descender devices) will be examined alone and combined with potential harvest slot management scenarios within the red snapper Stock Synthesis III assessment model (Methot 2012; SEDAR 2015). Red snapper will serve as the initial model species, after which the results may be applied to several other species of GOM reef fish, ...
Background: Myostatin (MSTN) is a member of the transforming growth factor-β superfamily that negatively regulates growth of skeletal muscle tissue. The gene encoding for the MSTN peptide is a consolidate candidate for the enhancement of productivity in terrestrial livestock. This gene potentially represents an important target for growth improvement of cultured finfish.. Results: Here we report molecular characterization, tissue expression and sequence variability of the barramundi (Lates calcarifer) MSTN-1 gene. The barramundi MSTN-1 was encoded by three exons 379, 371 and 381 bp in length and translated into a 376-amino acid peptide. Intron 1 and 2 were 412 and 819 bp in length and presented typical GT...AG splicing sites. The upstream region contained cis-regulatory elements such as TATA-box and E-boxes. A first assessment of sequence variability suggested that higher mutation rates are found in the 5 flanking region with several SNPs present in this species. A putative micro RNA target ...
The Keramashoto Coral Reef is located in Okinawa Prefecture, southern Japan. Originally designated as a Ramsar Site in 2005 with an area of 353 hectares, its area was greatly increased in 2015 to 8,290 ha. The boundary now overlaps with that of the Marine Park Area within Keramashoto National Park. The Ramsar Site is internationally important as a representative of the coral reef ecosystem in the Ryukyu Islands biogeographic region, as well as for its biodiversity. Tabular, branching, horn-shaped, mound, and sheet reef-building corals are densely distributed in the water. The fringing reefs are especially well-developed, with 248 species, 59 genera and 14 families of reef-building corals accounting for about 62% of such species in Japan. The Site is also an important feeding, spawning and larva nursery area for some 360 species of coral reef fish such as damselfish and clownfish (Pomacentridae), butterflyfish (Chaetodontidae) and wrasse (Labridae). Globally threatened species include the ...
The Keramashoto Coral Reef is located in Okinawa Prefecture, southern Japan. Originally designated as a Ramsar Site in 2005 with an area of 353 hectares, its area was greatly increased in 2015 to 8,290 ha. The boundary now overlaps with that of the Marine Park Area within Keramashoto National Park. The Ramsar Site is internationally important as a representative of the coral reef ecosystem in the Ryukyu Islands biogeographic region, as well as for its biodiversity. Tabular, branching, horn-shaped, mound, and sheet reef-building corals are densely distributed in the water. The fringing reefs are especially well-developed, with 248 species, 59 genera and 14 families of reef-building corals accounting for about 62% of such species in Japan. The Site is also an important feeding, spawning and larva nursery area for some 360 species of coral reef fish such as damselfish and clownfish (Pomacentridae), butterflyfish (Chaetodontidae) and wrasse (Labridae). Globally threatened species include the ...
Baton Rouge, LA - Louisiana anglers can breathe a sigh of relief for now. The Louisiana Department of Wildlife and Fisheries will not close the red snapper season as some had feared. In fact, there is a chance that the season will last until Sept. 4, the official closure date.. According to estimates from LDWFs LA Creel, the states near real-time data program, if anglers continue to catch red snapper at the current rate, the season may last through Labor Day.. The current harvest rates are certainly lower than we were expecting, so we are able to keep the season open at this time, said Assistant Secretary for Fisheries Patrick Banks. However, he said, it is very unlikely the current average weekly catch of 66,000 will hold.. Louisiana has a self-imposed limit of approximately 15 percent of the total Gulf of Mexico catch. The self-imposed limit equals about 1.04 million pounds of red snapper for 2017.. According to the latest LA Creel estimated harvest rate Louisiana anglers would only catch ...
The Antarctic marine fauna has been isolated in the cold (-2°C), stable, and oxygen-rich Southern Ocean for 25 million years, and consequently these animals are extremely cold-adapted. One family within the Antarctic notothenioid fishes, the icefish, has lost the capacity to produce erythrocytes and the oxygen transport protein hemoglobin. Their profound anemia makes them an evolutionary mutant model of human anemias. Using a comparative-genomic approach, we have isolated 10 novel genes that are differentially expressed by the red-blooded species Notothenia coriiceps and the white-blooded icefish, Chaenocephalus aceratus, and may be novel genes involved in erythropoiesis. We have identified one of these genes (hemogen - hemgn) as a putative ortholog of mammalian EDAG and RP59. In mammals, these genes are involved in the proliferation of blood and bone cells, however, whether the putative ortholog hemgn functions similarly in fishes has not be reported. In the current study, we use a ...
This question often comes up in discussions about the federal fisheries management process: Why are people who profit from the harvest and sale of Americas marine resources allowed to sit on management bodies that make regulations governing those resources? Its a good question. The most contentious issue in the Gulf of Mexico is privatization of the red snapper fishery in which millions of dollars worth of a public resource was gifted to select commercial operators to harvest for their own personal profit. Gifted, for free. Yet, someone who owns red snapper shares can sit on the Gulf Council and vote on every aspect of that fishery. And one does. Over the past few years, certain members of the charter/for-hire sector have worked to launch a privatization program in which they, too, could own shares and use red snapper as their own. Yet, on the Gulf Council, people who own charter businesses and stand to directly benefit from the program are never required to recuse themselves from votes on ...
The use of fish processing waste from an oily fish model (mackerel, Scomberscombrus) and a white fish model (blue whiting, Micromesistius poutassou) as a source of functional and bioactive compounds was investigated.Gelatines were extracted from fish heads and skins using pre-treatment withdifferent organic acids (acetic, citric, lactic, tartaric and malic acids). Gelatines from fish bones were extracted after pre-treating the bones either chemically or enzymatically. The type of pre-treatment affected the yield, colour, turbidity, amino acid profiles as well as functional properties of fish gelatines. Mackerel gelatines formed stronger and more stable gels than blue whiting. Acetic acid pre-treatment of mackerel and blue whiting heads and skins produced stronger gelatine gels. The enzymatic pre-treatment of fish bones resulted in gelatines with poor rheological properties.Hydrolysates obtained from the hydrolysis of mackerel head and skingelatines with pepsin exhibited the highest antioxidant activity
Like the father in Finding Nemo, anemonefish dads will do almost anything to support their offspring. Their parenting instincts are so strong that if you give a bachelor anemonefish eggs from an unrelated anemonefish nest, he will care for them as if they were his own. (Any other fish would eat them.) A new study of Amphiprion ocellaris reveals some of the potent hormonal signals that regulate this gallant paternal instinct. (INCLUDES VIDEO)
3 University of Kalyani, Fishery Extension Laboratory, Department of Zoology, Kalyani, Nadia (West Bengal)-741235. India DOI : 10.4194/1303-2712-v17_3_05 Viewed : 833 - Downloaded : 571 The present investigation is about change in antioxidant enzymes and protein profile in Oreochromis mossambicus and Channa punctatus due to toxicity induced by application of fungicides in paddy -cum-fish ecosystem in India. Antioxidant enzymes like Lactate dehydrogenase (LDH), Malate dehydrogenase (MDH) and Peroxidase (Pox) are used as biomarkers for toxicological study. Oreochromis mossambicus and Channa punctatus were exposed to different concentration of Azoxystrobin 23% SC and Hexaconazole 5% SC respectively and LC50 was determined. LC50 for Amister was detected to be 0.008 ml/lit and that for Contaf plus was found to be 0.025 ml/lit. In case of Oreochromis mossambicus 1/2.5th, 1/5 th and 1/7.5th of LC50 (0.0032 ml/lit, 0.0016 ml/lit and 0.001 ml/lit) were selected for chronic sub-lethal study. For Channa ...
Adults inhabit lagoon and seaward reefs (Ref. 9710). Each group of fish consists of a breeding pair and 0-4 non-breeders. Within each group there is a size-based hierarchy: the female is largest, the male is second largest, and the non-breeders get progressively smaller as the hierarchy is descended. If the female dies, the male changes sex and becomes the breeding female, while the largest non-breeder becomes the breeding male. The maintenance of size differences may avoid conflicts, because subordinates do not become a threat to their dominants (Ref. 47841). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Maybe found in shallower depths than A. ocellaris. Associated with the anemones: Heteractis crispa, Heteractis magnifica, and Stichodactyla gigantea (Ref. 5911). This species has been reared in captivity (Ref. 35404, 35413, 35420). ...
Adults inhabit lagoon and seaward reefs (Ref. 9710). Each group of fish consists of a breeding pair and 0-4 non-breeders. Within each group there is a size-based hierarchy: the female is largest, the male is second largest, and the non-breeders get progressively smaller as the hierarchy is descended. If the female dies, the male changes sex and becomes the breeding female, while the largest non-breeder becomes the breeding male. The maintenance of size differences may avoid conflicts, because subordinates do not become a threat to their dominants (Ref. 47841). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Maybe found in shallower depths than A. ocellaris. Associated with the anemones: Heteractis crispa, Heteractis magnifica, and Stichodactyla gigantea (Ref. 5911). This species has been reared in captivity (Ref. 35404, 35413, 35420). ...
ShareThis[61] Webb, J. F., L. W. Smith, and D. R. Ketten, CT (Computerized Tomography) provides new views of the swimbladder in butterflyfishes (Chaetodon) with a novel specialization of the mechanosensory lateral line system, SICB Meeting, vol. 39: American Zoological Association, pp. 16A, 2000 ...
The long snapper is one of the most under-appreciated roles on a football team: a good long snapper doesnt get much ink unless its because he screwed up. But the Eagles Jon Dorenbos isnt satisfied with staying in the background, and hes developed and perfected a skill that allows him to grab as much of the spotlight as he wants: Jon Dorenbos, professional football player, is also a professional magician. - Ryan Petzar, Philadelphia Philly.com
Bass vs Atlantic mackerel - In-Depth Nutrition Comparison. Compare Bass to Atlantic mackerel by vitamins and minerals using the only readable nutrition comparison tool.
Atlantic mackerel vs Sockeye salmon - In-Depth Nutrition Comparison. Compare Atlantic mackerel to Sockeye salmon by vitamins and minerals using the only readable nutrition comparison tool.
Coastal exposure may affect the structure of littoral fish assemblages. To evaluate its effects, fish assemblages associated with shallow (0-3m depth) rocky reefs were investigated by visual census at the Asinara Island National Park (northwestern Sardinia, Italy, Mediterranean Sea) during autumn 2003. Distribution patterns of ichthyofauna in sheltered and exposed rocky reefs were assessed over the spatial scales of locations (i.e. kilometres) and sites (i.e. hundreds of metres). Overall, 38 fish taxa belonging to 17 families were recorded, with Labridae, Sparidae and Serranidae being the families with the most species. Univariate analyses showed that the average density of Labridae and Serranidae was significantly greater at sheltered locations, while particulate organic matter feeders (i.e. Mugilidae) were more abundant at the exposed ones. Significant differences in species richness, total fish abundance and densities of Labridae and planktivorous fish were observed at the spatial scale of ...
Bright orange clownfish swim by a large coral structure in this wall mural. This underwater scene includes many other schools of fish and lots of attractive coral.
TY - JOUR. T1 - Environmental conditions and paternal care determine hatching synchronicity of coral reef fish larvae. AU - Chaput, Romain. AU - Majoris, John Edwin. AU - Guigand, Cédric M.. AU - Huse, Megan. AU - DAlessandro, Evan K.. N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank R. Francis and E. Schlatter for their assistance with the field work in Belize, and R. Delp, M. Connelly, M. Kendi, C. Cresci and C. Purcell for their assistance with the field work in Florida. We wish to thank K. Clements, R. McBride, and an anonymous reviewer for helpful comments on the manuscript. This study was funded by the National Science Foundation (NSF OCE awards 1459156 and 249446) and the International Light Tackle Association Fund.. PY - 2019/8/27. Y1 - 2019/8/27. N2 - For all fishes, hatching is a short but crucial event, and the conditions under which it occurs considerably influence the success of the larvae. For coral reef fish, hatching is even more important because ...
TY - JOUR. T1 - Sex change of adult initial-phase male wrasse, Halichoeres trimaculatus by estradiol-17β treatment. AU - Kojima, Y.. AU - Bhandari, R. K.. AU - Kobayashi, Y.. AU - Nakamura, M.. N1 - Funding Information: The authors thank Dr. Eric Nilsson for critically reading the manuscript, the members of the Nakamura Laboratory for assistance with fish collection and sampling, and Dr. Mikihiko Higa for constructive advice. Grant sponsors are 21st Century COE Program of University of the Ryukyus and a Research Project entitled Utilizing Advanced Technologies in Agriculture, Forestry and Fisheries, Japan. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.. PY - 2008/5/1. Y1 - 2008/5/1. N2 - Sex steroids are considered major regulators of sex change processes in fish. Estrogen depletion is shown to be crucial for female-male sex change initiation; however, its role in male-female sex change is largely unknown. In the present study, we examined the effects of estradiol-17β (E2) ...
Journal of Advanced Laboratory Research in Biology (ISSN: 0976-7614) is an international, open access, peer-reviewed journal of biological sciences.
The clownfish A. percula clearly has a close association with coral reefs surrounding vegetated islands. Both clownfish and host anemone numbers are high on island reefs and sparse on other emergent reefs. Within island reef systems, numbers are the greatest immediately adjacent to the islands themselves, where they are often found beneath overhanging vegetation. Given the strong association between host anemones and island reefs, A. percula larvae can clearly maximize their chances of finding a suitable settlement site by being able to locate and orient towards islands. The islands themselves are a potential source of many olfactory water-borne cues that would not be emanating from reefs without islands. Elevated levels of organic material from the lush tropical rainforest vegetation could clearly extend some distance from the islands. The experimental data presented here strongly suggest that A. percula has an innate olfactory attraction to rainforest vegetation, and once detected, could use ...
Half of all vertebrate species share a series of chromosome fusions that preceded the teleost genome duplication (TGD), but we do not understand the causative evolutionary mechanisms. The Robertsonian-translocation hypothesis suggests a regular fusion of each ancestral acro- or telocentric chromosome to just one other by centromere fusions, thus halving the karyotype. An alternative genome-stirring hypothesis posits haphazard and repeated fusions, inversions, and reciprocal and nonreciprocal translocations. To study large-scale karyotype reduction, we investigated the decrease of chromosome numbers in Antarctic notothenioid fish. Most notothenioids have 24 haploid chromosomes, but bullhead notothen (Notothenia coriiceps) has 1. To understand mechanisms, we made a RAD-tag meiotic map with approximate to 10,000 polymorphic markers. Comparative genomics aligned about a thousand orthologs of platyfish and stickleback genes along bullhead chromosomes. Results revealed that 9 of 11 bullhead chromosomes arose
Wrasses represent the second largest family of marine fishes and display a high diversity of complex colours linked to ecological functions. Recently, red autofluorescent body colouration has been reported in some of these fishes. However, little is known about the distribution of such fluorescent body patterns in wrasses or the animals ability to perceive such colours. Against this background, we (1) investigated long-wavelength emission autofluorescence in thirteen species of pseudocheilinid wrasses and (2) characterised the spectral absorbance of visual pigments in one of the examined species, the fairy wrasse Cirrhilabrus solorensis. Spectrophotometric analysis revealed that fluorescent body colouration is widespread and diverse within this clade, with considerable variation in both fluorescent pattern and maximum emission wavelength between species. Characterisation of visual pigments in retinal photoreceptors showed a single class of rod and three spectrally distinct cone photoreceptors,
The Prehistoric Dragon Goby, also called the Dragon Goby, Eel Goby, Peruvian Goby, or Violet Goby is a brackish water to fresh water fish from South and Central America. The prehistoric Dragon Goby has a long slender body much like an eel with purplish lavender body color. The Prehistoric Dragon Goby is ideally kept in a 50-gallon or larger aquarium decorated with plenty of rocks, plants, and caves in order to provide adequate hiding places for this typically timid fish. They prefer hard water with an alkalinity of 10 to 20 dKH and a pH of 7.5 to 8.0. In order to maintain these conditions, it is best to provide a substrate consisting of aragonite. The aragonite substrate can be mixed with darker gravel to reduce glare from the lighting. Although no external differences are known between male and female, if trying to breed the Prehistoric Dragon Gobies, spawning groups of 1 male to at least 3 females is recommended. The male will spawn with several females over the course of a day. Females should ...
1. Acute air exposure of an air-breathing fish Channa argus immediately induced hypercapnic acidemia while total CO2 content of blood remained unchanged. Upon reimmersion, paco2 and pHa quickly restored to pre-exposure levels followed by gradual rise of [HCO-3]. 2. Artificial air ventilation of air- …
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