First record of a spawning aggregation for the tropical eastern Pacific endemic grouper Mycteroperca olfax in the Galapagos Marine Reserve.

abstract：:The response of six species of freshwater fishes, from the families Cyprinidae (common carp Cyprinus carpio, roach Rutilus rutilus and chub Leuciscus cephalus) and Salmonidae (rainbow trout Oncorhynchus mykiss, brown trout Salmo trutta and Arctic charr Salvelinus alpinus), to a standardized stressor was evaluated. A 6...

journal_title：Journal of fish biology

authors： Pottinger TG

更新日期：2010-02-01 00:00:00

abstract：:This study presents the diet composition of western Baltic cod Gadus morhua based on 3150 stomachs sampled year-round between 2016 and 2017 using angling, gillnetting and bottom trawling, which enhanced the spatio-temporal coverage of cod habitats. Cod diet composition in shallow areas (<20 m depth) was dominated by b...

journal_title：Journal of fish biology

authors： Funk S,Frelat R,Möllmann C,Temming A,Krumme U

更新日期：2020-11-17 00:00:00

abstract：:Round gobies Neogobius melanostomus were observed readily consuming soft tissue from carcasses of larger fishes under both laboratory and field conditions. Consumption normally progressed in a typical sequence, starting with soft and easily accessible tissues such as the eyes, followed by puncture of the abdominal cav...

journal_title：Journal of fish biology

authors： Polačik M,Jurajda P,Blažek R,Janáč M

更新日期：2015-07-01 00:00:00

abstract：:In fishes, sex is determined by genetics, the environment or an interaction of both. Temperature is among the most important environmental factors that can affect sex determination. As a consequence, changes in temperature at critical developmental stages can induce biases in primary sex ratios in some species. Howeve...

journal_title：Journal of fish biology

authors： Geffroy B,Wedekind C

更新日期：2020-09-01 00:00:00

abstract：:The composition, species richness and diversity of a coastal fish assemblage from the Kalpakkam coast of south-east India are described along with temporal distribution patterns related to seasonal fluctuations in dissolved oxygen, salinity, pH, chlorophyll-a, phytoplankton and zooplankton species richness and density...

journal_title：Journal of fish biology

authors： Biswas S,Hussain KJ,Das NP,Russell BC,Satpathy KK,Mishra SS

更新日期：2014-09-01 00:00:00

abstract：:Large aggregations of rodlet cells in the gonads of male and female Greenland halibut Reinhardtius hippoglossoides are reported for the first time. These rodlet cells were not arranged epithelially but rather were found throughout the connective tissue between oocytes (females) or within lymphatic spaces between testi...

journal_title：Journal of fish biology

authors： Rideout RM,Smith SA,Morgan MJ

更新日期：2015-05-01 00:00:00

abstract：:Landmark-based geometric morphometrics were used to evaluate the effect of flow and depth in the water column on the body size and shape of Brycon henni from river and stream populations. The dendrogram showed that stream populations clustered apart and showed significantly smaller centroid size and narrower bodies th...

journal_title：Journal of fish biology

authors： Restrepo-Escobar N,Hurtado-Alarcón JC,Mancera-Rodríguez NJ,Márquez EJ

更新日期：2016-07-01 00:00:00

abstract：:As myxozoan actinospores are stimulated by fish epidermal mucus to attach to their hosts via extrusion of filaments from specialized organelles, the polar capsules, mucus components were tested for discharge triggering activity on Myxobolus cerebralis actinospores. Using various methodological approaches, a selective ...

journal_title：Journal of fish biology

authors： Kallert DM,Ponader S,Adelt S,Kaese P,Geyer R,Haas W,El-Matbouli M

更新日期：2010-11-01 00:00:00

abstract：:The shark-like rays of the family Rhinidae (wedgefishes) are globally threatened with extinction. The poorly known clown wedgefish, Rhynchobatus cooki has historically been recorded only from fish markets in Singapore and Jakarta, Indonesia. Its natural geographic range has until now gone undocumented. Social media po...

journal_title：Journal of fish biology

authors： McDavitt MT,Kyne PM

更新日期：2020-12-01 00:00:00

abstract：:Gymnotus capanema n. sp. is described on the basis of cytogenetic, morphometric, meristic and osteological data from nine specimens (one male and eight females) from the municipality of Capanema, Pará, in the eastern Amazon of Brazil. Later, three additional specimens were found in museums and regarded as nontypes (no...

journal_title：Journal of fish biology

authors： Milhomem SS,Crampton WG,Pieczarka JC,Shetka GH,Silva DS,Nagamachi CY

更新日期：2012-04-01 00:00:00

abstract：:By using freshwater fish stocking information from the Mexican government, this work described the current situation of the national stocking and its associated fishery policy. There is a lack of effective freshwater stocking programmes as a result of limited fisheries management, unharmonized fisheries regulations an...

journal_title：Journal of fish biology

authors： Ibáñez AL,Pérez-Ramírez M,García-Calderón JL

更新日期：2014-12-01 00:00:00

abstract：:Experiments done in aquaria under control and either turbid or densely vegetated conditions indicated that three-spined stickleback Gasterosteus aculeatus sneaking behaviour is affected by decreased underwater visibility. Success of sneaking behaviour decreased significantly under increased turbidity but not increased...

journal_title：Journal of fish biology

authors： Vlieger L,Candolin U

更新日期：2009-11-01 00:00:00

abstract：:Recent average annual catches of sharks by tuna longline vessels fishing in the Republic of the Marshall Islands (RMI) are estimated to be between 1583 and 2274 t. Although 22 shark species have been recorded by the observer programme for this fishery, 80% of the annual catch comprises only five species: blue shark Pr...

journal_title：Journal of fish biology

authors： Bromhead D,Clarke S,Hoyle S,Muller B,Sharples P,Harley S

更新日期：2012-04-01 00:00:00

abstract：:Differences in the diet composition of small (28-42 mm total length, L(T)) and large (43-75 mm L(T)) individuals of the cline Clinitrachus argentatus (Clinidae) were evident. Smaller individuals preyed mainly on copepods, whereas larger individuals ate mainly amphipods, isopods, brachyurans and polychaetes. ...

journal_title：Journal of fish biology

authors： Ozen O,Altin A,Ayyildiz H

更新日期：2010-04-01 00:00:00

abstract：:The movement of barbel Barbus barbus free embryos in the interstitial zone and the timing of larval emergence were studied for 12 days in an artificial stream. After egg fertilization (day 1), hatching occurred on day 6, downstream interstitial movements of free embryos on day 9 and emergence and downstream movement o...

journal_title：Journal of fish biology

authors： Vilizzi L,Copp GH

更新日期：2013-03-01 00:00:00

abstract：:Oxygen uptake, heart rate and contraction frequencies of slow oxidative (SO) and fast glycolytic (FG) muscle were measured simultaneously in gilthead seabream Sparus aurata submitted to stepwise increases in current speed in a swimming respirometer. Variation in oxygen uptake was closely related to variation in heart ...

journal_title：Journal of fish biology

authors： Hachim M,Rouyer T,Dutto G,Kerzerho V,Bernard S,Bourjea J,McKenzie DJ

更新日期：2020-11-20 00:00:00

abstract：:Gravel pit lakes are novel ecosystems that can be colonized by fish through natural or anthropogenic pathways. In central Europe, many of them are managed by recreational anglers and thus experience regular fish stocking. However, also unmanaged gravel pits may be affected by stocking, either through illegal fish intr...

journal_title：Journal of fish biology

authors： Matern S,Emmrich M,Klefoth T,Wolter C,Nikolaus R,Wegener N,Arlinghaus R

更新日期：2019-06-01 00:00:00

abstract：:The anabantoids are a group of c. 137 species of air-breathing freshwater fishes found in Africa and southern Asia. All anabantoids have a pair of suprabranchial chambers that each house an air-breathing organ known as the labyrinth apparatus: a complex bony structure lined with thin, highly vascularised respiratory e...

journal_title：Journal of fish biology

authors： Tate M,McGoran RE,White CR,Portugal SJ

更新日期：2017-09-01 00:00:00

abstract：:The previously unreported presence of transferrin in Atlantic cod Gadus morhua epidermal mucus is described. A less destructive sampling method, which may result in decreased epidermal tissue damage, is discussed. ...

journal_title：Journal of fish biology

authors： Easy RH,Trippel EA,Burt MD,Cone DK

更新日期：2012-11-01 00:00:00

abstract：:The goal of this study was to compare American eel Anguilla rostrata life history in two inland river systems in Arkansas, U.S.A., that ultimately discharge into the Gulf of Mexico via the Mississippi River and the Red-Atchafalaya catchments. From 21 June 2011 to 24 April 2014, 238 yellow-phase A. rostrata were captur...

journal_title：Journal of fish biology

authors： Cox CA,Quinn JW,Lewis LC,Adams SR,Adams GL

更新日期：2016-03-01 00:00:00

abstract：:Specific growth hormone (GH)-binding protein (Ghbp) was purified from Atlantic salmon Salmo salar and rainbow trout Oncorhynchus mykiss plasma with immunoprecipitation and characterized in cross-linking studies using autoradiography and western blots. The size of the Ghbp was estimated to be c. 53 kDa. A radioimmunoas...

journal_title：Journal of fish biology

authors： Einarsdóttir IE,Gong N,Jönsson E,Sundh H,Hasselberg-Frank L,Nilsen TO,Stefansson SO,Sundell K,Björnsson BT

更新日期：2014-10-01 00:00:00

abstract：:The high variability in survival over the past three decades of north-west Pacific Chinook salmon Oncorhynchus tshawytscha is summarized for 24 stocks and analysed using hierarchical Bayesian models. Results from a simple model indicate that recruitment anomalies appear to be correlated in time and space. A simple mod...

journal_title：Journal of fish biology

authors： Sharma R,Liermann M

更新日期：2010-11-01 00:00:00

abstract：:The Indo-Pacific mud sleeper Butis koilomatodon (Eleotridae) is recorded for the first time in the south-western Atlantic Ocean, based on 23 specimens caught at seven localities along the northern, north-eastern, eastern and south-eastern Brazilian coast. The occurrence of males and females in different ontogenetic st...

journal_title：Journal of fish biology

authors： Macieira RM,Giarrizzo T,Gasparini JL,Sazima I

更新日期：2012-07-01 00:00:00

abstract：:An elasmobranch survey of sub-tropical Hervey Bay, Australia, captured the slit-eye shark Loxodon macrorhinus at only one of three sites sampled. The dietary composition of this small shark species was compared to the prey communities within Hervey Bay to test whether prey availability was driving this observation. Di...

journal_title：Journal of fish biology

authors： Gutteridge AN,Bennett MB,Huveneers C,Tibbetts IR

更新日期：2011-05-01 00:00:00

abstract：:The Portuguese dogfish Centroscymnus coelolepis is a wide-ranging deep-water shark and a common by-catch component of the catches of several mid- to deep-water fisheries. In the present study, two new records from the south-western Atlantic Ocean are reported based on specimens caught by bottom-longline fishing vessel...

journal_title：Journal of fish biology

authors： Mas F,Forselledo R,Domingo A,Pin O,Troncoso P,Errico E,Marquez A,Tanaka S,Weigmann S

更新日期：2020-03-01 00:00:00

abstract：:A specimen of angular roughshark Oxynotus centrina has been kept successfully in captivity for the first time. Over a period of 24 months, the specimen preyed exclusively on the contents of elasmobranch egg cases, suggesting a specialized trophic niche. ...

journal_title：Journal of fish biology

authors： Guallart J,García-Salinas P,Ahuir-Baraja AE,Guimerans M,Ellis JR,Roche M

更新日期：2015-10-01 00:00:00

abstract：:Understanding the spatial and environmental variation in demographic processes of fisheries target species, such as coral grouper (Genus: Plectropomus), is important for establishing effective management and conservation strategies. Herein we compare the demography of Plectropomus leopardus and P. laevis between Austr...

journal_title：Journal of fish biology

authors： Payet SD,Lowe JR,Mapstone BD,Pratchett MS,Sinclair-Taylor TH,Taylor BM,Waldie PA,Harrison HB

更新日期：2020-10-01 00:00:00

abstract：:Through the analysis of behavioural changes, this study demonstrates that methadone has behavioural, but not analgesic, effects on Oreochromis niloticus. It provides information that suggests the drug has sedative abilities, as the recovery time was shorter in the fish receiving methadone. Future research, with differ...

journal_title：Journal of fish biology

authors： Crivelaro RM,Thiesen R,Aldrovani M,Silva PES,Barros Sobrinho AAF,Moraes PC

更新日期：2019-05-01 00:00:00

abstract：:The aim of this study was to determine the effect of stress on reproduction and the possible involvement of dopaminergic systems in the reproductive stress response in the mosquitofish Gambusia affinis. Exposure of fish to aquaculture stressors (four 10 min episodes of stress, each corresponding to a different stresso...

journal_title：Journal of fish biology

authors： Bhat SK,Ganesh CB

更新日期：2020-01-01 00:00:00

abstract：:During the past 40 years many new techniques have emerged that have been pivotal in furthering understanding of the physiology of fish behaviour. Behavioural studies have been enhanced by video recording systems and software for computerized event recording analysis, fine scale anatomical studies by fluorescence confo...

journal_title：Journal of fish biology

authors： Huntingford FA

更新日期：2012-12-01 00:00:00