Genetic variability and demographic history of Anguilla mossambica (Peters, 1852) from continental Africa and Madagascar.

abstract：:Monitoring freshwater fish communities in a large human-impacted river is a challenging task. The structure of fish assemblages has been monitored yearly in the Marne and the Seine Rivers, across the Paris conurbation, France, using traditional electrofishing (EF) surveys since 1990, in accordance with the European Wa...

journal_title：Journal of fish biology

authors： Goutte A,Molbert N,Guérin S,Richoux R,Rocher V

更新日期：2020-08-01 00:00:00

abstract：:To illustrate some of the challenges and considerations in assigning correct orthology necessary for any comparative genomic investigation among salmonids, sequence data from the non-coding regions of different chromosomes in three members of the subfamily Salmoninae, rainbow trout Oncorhynchus mykiss, Atlantic salmon...

journal_title：Journal of fish biology

authors： Moghadam HK,Ferguson MM,Danzmann RG

更新日期：2011-09-01 00:00:00

abstract：:Female response to various aspects of male trait morphology and the effect of female feeding motivation were investigated in the swordtail characin Corynopoma riisei, a species where males are equipped with a flag-like food-mimicking ornament that grows from the operculum. Unfed females responded more strongly to the ...

journal_title：Journal of fish biology

authors： Amcoff M,Kolm N

更新日期：2013-08-01 00:00:00

abstract：:The opioid peptides are involved in the regulation of neuroendocrine functions in vertebrates. Nonetheless, the influence of an opioid peptide, dynorphin A (DYN), on reproduction in fish is understudied. The aim of this work was to study the influence of DYN on the pituitary-ovary axis in Oreochromis mossambicus. Dail...

journal_title：Journal of fish biology

authors： Vijayalaxmi,Ganesh CB

更新日期：2020-03-01 00:00:00

abstract：:During their third and fourth years of life, triploid Atlantic cod Gadus morhua females exhibited diminished ovarian development at both macroscopic and microscopic levels, with significantly lower gonado-somatic indices (I(G)) and higher carcass yields (Y(C)) than diploid females during spawning periods. In contrast,...

journal_title：Journal of fish biology

authors： Feindel NJ,Benfey TJ,Trippel EA

更新日期：2011-06-01 00:00:00

abstract：:Introduced predatory fishes have had consistently severe consequences for native fishes in stream environments around the world, although the drivers of these effects are often unclear. In the Swartkops River headwaters in South Africa, native Eastern Cape redfin Pseudobarbus afer were always absent from sites occupie...

journal_title：Journal of fish biology

authors： Ellender BR,Weyl OLF,Alexander ME,Luger AM,Nagelkerke LAJ,Woodford DJ

更新日期：2018-04-01 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

abstract：:In many experiments, euthanasia, or humane killing, of animals is necessary. Some methods of euthanasia cause death through cessation of respiratory or cardiovascular systems, causing oxygen levels of blood and tissues to drop. For experiments where the goal is to measure the effects of environmental low oxygen (hypox...

journal_title：Journal of fish biology

authors： Larter KF,Rees BB

更新日期：2017-06-01 00:00:00

abstract：:Evidence of facultative corallivory is documented in three species of obligate coral-dwelling gobies (genus Gobiodon) based on the presence of spirocysts in gut contents. Coral-dwelling gobies also consumed a broad range of other items with gut contents dominated by algae, invertebrates and amorphous material. Dietary...

journal_title：Journal of fish biology

authors： Brooker RM,Munday PL,Ainsworth TD

更新日期：2010-06-01 00:00:00

abstract：:An experiment quantified the effect of food ration and spawning number on the breeding season reproductive performance of batch-spawning, female three-spined sticklebacks Gasterosteus aculeatus. Individually housed females were maintained on fixed rations of 2, 4, 8 or 16% of their initial postspawning mass of live en...

journal_title：Journal of fish biology

authors： Wootton RJ,Fletcher DA

更新日期：2009-08-01 00:00:00

abstract：:A survey of soft sediment tide pools was conducted to assess the occupation and assemblage of fishes on three different intertidal shores in Moreton Bay, Australia, between January and December 2009. Tide-pool volume ranged from 0· 30 to 29· 75 l and varied significantly between months and sites. A total of 1364 indiv...

journal_title：Journal of fish biology

authors： Chargulaf CA,Townsend KA,Tibbetts IR

更新日期：2011-02-01 00:00:00

abstract：:The main findings of the current study were that exposing adult sockeye salmon Onchorhynchus nerka to a warm temperature that they regularly encounter during their river migration induced a heat shock response at an mRNA level, and this response was exacerbated with forced swimming. Similar to the heat shock response,...

journal_title：Journal of fish biology

authors： Anttila K,Eliason EJ,Kaukinen KH,Miller KM,Farrell AP

更新日期：2014-05-01 00:00:00

abstract：:Based on existing laboratory research on the visual physiology of walleye Sander vitreus, we tested colours of known spectral sensitivity (i.e., green and orange) using constant and strobing (5 Hz) illumination with an LED-based light guidance device (LGD). Hatchery-reared age 0 and 2 years S. vitreus were exposed to ...

journal_title：Journal of fish biology

authors： Ford MI,Elvidge CK,Patrick PH,Sills M,Cooke SJ

更新日期：2019-11-01 00:00:00

abstract：:The pencil cardinal Epigonus denticulatus is a small deep-water fish inhabiting continental slopes usually between 300 m and 600 m depth. We report the first record of E. denticulatus in the Azores archipelago, where one specimen was found floating by fisherman off Faial island. Meristic and morphometric characters ar...

journal_title：Journal of fish biology

authors： Catarino D,Stefanni S,Porteiro FM,Rosa A,Giacomello E

更新日期：2021-01-27 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：:The influences of water temperature and feeding regime on otolith growth in Anguilla japonica glass eels and elvers were investigated using individuals reared at 5, 10, 15, 20, 25 and 30 degrees C and in fed or unfed conditions at salinity 32 after their otoliths were marked with alizarin complexone (ALC). To eliminat...

journal_title：Journal of fish biology

authors： Fukuda N,Kuroki M,Shinoda A,Yamada Y,Okamura A,Aoyama J,Tsukamoto K

更新日期：2009-06-01 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：:Size-dependent reproductive success of wild zebrafish Danio rerio was studied under controlled conditions in the laboratory to further understand the influence of spawner body size on reproductive output and egg and larval traits. Three different spawner size categories attained by size-selective harvesting of the F(1...

journal_title：Journal of fish biology

authors： Uusi-Heikkilä S,Wolter C,Meinelt T,Arlinghaus R

更新日期：2010-08-01 00:00:00

abstract：:Medaka (O. latipes) and zebrafish (D. rerio) are two teleost fish increasingly used as models to study human skeletal diseases. Although they are similar in size, swimming pattern and many other characteristics, these two species are very distant from an evolutionary point of view (by at least 100 million years). A pr...

journal_title：Journal of fish biology

authors： Ofer L,Zaslansky P,Shahar R

更新日期：2020-04-02 00:00:00

abstract：:During low-water period, freshwater stingray Paratrygon aiereba collected in the whitewater (WW) of the River Amazon showed higher urea content, osmolality, Na(+) and Cl(-) concentrations in plasma and perivisceral fluid than those caught in blackwater (BW) of the River Negro. Gills and kidney Na(+)-K(+)-ATPase activi...

journal_title：Journal of fish biology

authors： Duncan WP,Costa OT,Araújo ML,Fernandes MN

更新日期：2009-03-01 00:00:00

abstract：:Genetic structure and diversity of nine Japanese kokanee (landlocked) Oncorhynchus nerka stocks and anadromous O. nerka from the North Pacific and the Canadian Lake Cultus population were examined using microsatellite and mitochondrial DNA. Sequence analyses of the cytochrome b region of mtDNA for Japanese kokanee O. ...

journal_title：Journal of fish biology

authors： Yamamoto S,Kitamura S,Sakano H,Morita K

更新日期：2011-11-01 00:00:00

abstract：:A re-evaluation of Dekeyseria brachyura and D. pulchra found them to be junior synonyms of D. picta, the oldest species among these congeners, based on continuous intraspecific variation in morphometrics and colour pattern. Examination of material deposited at Brazilian and Venezuelan collections, including the origin...

journal_title：Journal of fish biology

authors： Silva RR,Rapp Py-Daniel LH

更新日期：2018-05-01 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：:In some small, often unstable, streams of the Gila River drainage, New Mexico, Gila trout Oncorhynchus gilae populations fluctuated numerically seasonally and annually. Few differences were noted in length-weight and size-structure comparisons, but Fulton condition index varied significantly. Time of sample and time s...

journal_title：Journal of fish biology

authors： Propst DL,Stefferud JA

更新日期：1997-12-01 00:00:00

abstract：:Between 2008 and 2015, a group of tawny nurse sharks Nebrius ferrugineus reproduced successfully in a captive environment on the central Red Sea coast of Saudi Arabia. Births occurred on an annual basis, except for 2013. Of 12 confirmed birthing events, the most recent (2015) was observed and recorded in detail, which...

journal_title：Journal of fish biology

authors： Cocks LN,Mee JKL,Shepherd AP

更新日期：2019-06-01 00:00:00

abstract：:Hemiodus bimaculatus sp. nov., is described from tributaries of the Rio Juruena and Rio Teles Pires in the upper Rio Tapajós basin. The new species is diagnosed from most congeners, except Hemiodus jatuarana, by having a conspicuous circular or horizontally elongate dark blotch on the caudal peduncle (v. inconspicuous...

journal_title：Journal of fish biology

authors： Nogueira AF,Langeani F,Netto-Ferreira AL

更新日期：2019-05-01 00:00:00

abstract：:A genotyping assay for the Ion Torrent Ion PGM platform was developed for fast and cost-effective targeted genotyping of key single nucleotide polymorphisms (SNPs) earlier identified using a genome-wide SNP array in Atlantic salmon Salmo salar. The method comprised a simple primer design step for multiplex-polymerase ...

journal_title：Journal of fish biology

authors： Aykanat T,Lindqvist M,Pritchard VL,Primmer CR

更新日期：2016-12-01 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：:In the present study, pop-off data storage tags (pDST) without any transmitting capabilities were attached to 118 adult salmonids in a 19 000 km2 freshwater system (Lake Ontario). The 9·3 cm long cylindrical tags were externally attached to fishes using a backpack-style harness, set to record pressure (dBar ≈ depth in...

journal_title：Journal of fish biology

authors： Raby GD,Johnson TB,Kessel ST,Stewart TJ,Fisk AT

更新日期：2017-12-01 00:00:00

abstract：:Seventeen individuals of ide Leuciscus idus were radio-tracked weekly from September 2003 to September 2004 in the River Elbe, Czech Republic, to examine migration patterns and the influence of environmental factors on their diurnal behaviour. Of the 10 environmental factors measured, L. idus were significantly influe...

journal_title：Journal of fish biology

authors： Kulísková P,Horký P,Slavík O,Jones JI

更新日期：2009-04-01 00:00:00