Latitudinal variation in egg size and number in anadromous masu salmon Oncorhynchus masou.

abstract：:Fish assemblages along the longitudinal course of an old, disconnected and modified side arm of the Danube floodplain downstream of Vienna, Austria, as well as habitat structure, hydro-morphological and hydro-chemical factors, were investigated in order to analyse the key environmental determinants of the European mud...

journal_title：Journal of fish biology

authors： Sehr M,Keckeis H

更新日期：2017-10-01 00:00:00

abstract：:Suppression subtractive hybridization (SSH) was used to generate a subtracted cDNA library enriched with gene transcripts differentially expressed in the spleen of orange-spotted grouper Epinephelus coioides after 5 days of infection with Singapore grouper iridovirus (SGIV). In the forward and reverse-subtracted libra...

journal_title：Journal of fish biology

authors： Xu D,Wei J,Cui H,Gong J,Yan Y,Lai R,Qin Q

更新日期：2010-08-01 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：: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：:Marine fish are an irreplaceable resource, but are currently under threat through overfishing and climate change. To date, most of the emphasis has been on single stocks or populations of economic importance. However, commercially valuable species are embedded in assemblages of many species and there is only limited u...

journal_title：Journal of fish biology

authors： Moyes F,Magurran AE

更新日期：2019-01-01 00:00:00

abstract：:Analyses of mitochondrial (mt) DNA and microsatellite variation were carried out to examine the relationships between 10 freshwater populations of three-spined sticklebacks Gasterosteus aculeatus along the eastern coast of the Adriatic Sea. Partial sequences of the mtDNA control region and cytochrome b gene, in additi...

journal_title：Journal of fish biology

authors： DeFaveri J,Zanella LN,Zanella D,Mrakovčić M,Merilä J

更新日期：2012-01-01 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 this study, population genetic and demographic parameters were inferred using sequence data from 151 individuals of Anguilla mossambica originating from continental south and south-east Africa and Madagascar. The analyses were based on a 532 bp segment of the mitochondrial cytochrome b gene. The absence of genetic ...

journal_title：Journal of fish biology

authors： Frankowski J,Lübke K,Coke M,Weyl OLF

更新日期：2020-05-01 00:00:00

abstract：:The primary objectives of this study were to document the macroscopic and histological structure of the alimentary tract (AT) of the convict cichlid Amatitlania nigrofasciata, because there are no data available for this omnivorous freshwater fish of the family Cichlidae. The morphology of the AT of A. nigrofasciata r...

journal_title：Journal of fish biology

authors： Hopperdietzel C,Hirschberg RM,Hünigen H,Wolter J,Richardson K,Plendl J

更新日期：2014-11-01 00:00:00

abstract：:The effect of UV radiation on habitat use of two species of intertidal fishes that inhabit the same pools but exhibit different activity levels and diets was measured: the highly active omnivorous Girella laevifrons and the cryptic carnivorous Graus nigra. Individuals of each species were acclimated to a tank divided ...

journal_title：Journal of fish biology

authors： Pulgar J,Lagos P,Maturana D,Valdés M,Aldana M,Pulgar VM

更新日期：2015-02-01 00:00:00

abstract：:This study examined inter-period changes over two to three decades in the fish fauna of an urbanized estuary experiencing rapid population growth and a drying climate (Swan-Canning Estuary, Western Australia). Responses were compared at the fish community level (species composition; 1978-2009 in the shallows and 1993-...

journal_title：Journal of fish biology

authors： Valesini FJ,Cottingham A,Hallett CS,Clarke KR

更新日期：2017-05-01 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：:We assessed the effects of sexual maturity on space use in Atlantic salmon (Salmo salar) parr as facultative early maturation enables us to work on individuals belonging to the same cohort. We monitored the space use of 40 1-year-old males in natura throughout a breeding season. First, mature individuals covered longe...

journal_title：Journal of fish biology

authors： Bouchard C,Lange F,Guéraud F,Rives J,Tentelier C

更新日期：2020-04-01 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：:Phylogeographical analyses on Sinocyclocheilus grahami samples from seven localities within the Lake Dianchi Basin in China were conducted to explore the main factors shaping population structure within this species. Phylogenetic and network analyses revealed two major clades in 24 mtDNA haplotypes. One clade included...

journal_title：Journal of fish biology

authors： Chen SY,Zhang RD,Feng JG,Xiao H,Li WX,Zan RG,Zhang YP

更新日期：2009-05-01 00:00:00

abstract：:The distribution limits in the Atlantic of Callorhinchus callorynchus (Callorhinchidae) and Odontesthes argentinensis (Atherinopsidae) are extended northwards to 22° 22' S and 22° 31' S, respectively, whereas that of Lile piquitinga (Clupeidae) is extended southwards to 22° 22' S. Their occurrence in the north of Rio ...

journal_title：Journal of fish biology

authors： Di Dario F,Petry AC,Mincarone MM,Pereira MM,dos Santos RM

更新日期：2011-08-01 00:00:00

abstract：:Sagittal otoliths were used to age the samples of Tilapia mariae collected from a coastal river and an impoundment. Validation of sagittae checks was achieved using both quantitative marginal increment analysis and by tetracycline marking of the otoliths of fish kept in tanks and in a farm dam. The annulus pattern on ...

journal_title：Journal of fish biology

authors： Russell DJ,Thomson FE,Thuesen PA

更新日期：2013-04-01 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：:California grunion Leuresthes tenuis synchronize spawning with tidal cycles, so the embryos incubate in a terrestrial environment, delay hatching until cued by a specific environmental trigger, and may extend incubation for up to an additional four weeks. These adaptations, however, do not appear to alter the morpholo...

journal_title：Journal of fish biology

authors： Martin KL,Moravek CL,Flannery JA

更新日期：2009-07-01 00:00:00

abstract：:Fine-scale temporal patterning in grunt production and variation in grunt attributes in Atlantic cod Gadus morhua and pollack Pollachius pollachius was examined. Pollachius pollachius produced only a single sound type, the grunt, similar to that previously described for G. morhua. Sound production and egg production w...

journal_title：Journal of fish biology

authors： Wilson LJ,Burrows MT,Hastie GD,Wilson B

更新日期：2014-04-01 00:00:00

abstract：:The Mekong Delta is host to a large number of freshwater species, including a unique group of facultative air-breathing Anabantiforms. Of these, the striped snakehead (Channa striata), the climbing perch (Anabas testudineus), the giant gourami (Osphronemus goramy) and the snakeskin gourami (Trichogaster pectoralis) ar...

journal_title：Journal of fish biology

authors： Goodrich HR,Bayley M,Birgersson L,Davison WG,Johannsson OE,Kim AB,Le My P,Tinh TH,Thanh PN,Thanh HDT,Wood CM

更新日期：2020-04-01 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：:The goal of this review was to provide a historical overview of how molecular techniques have increased the understanding of the ecology and evolution of the family Syngnathidae (pipefishes, seahorses and seadragons). Molecular studies based primarily on mitochondrial DNA markers have proved their worth by elucidating...

journal_title：Journal of fish biology

authors： Mobley KB,Small CM,Jones AG

更新日期：2011-06-01 00:00:00

abstract：:This study documents and discusses recent (2002-2015) sightings and captures of smalltooth sawfish Pristis pectinata in the Bahamas. Movement patterns and habitat preferences of five P. pectinata are examined: two tracked with acoustic telemetry in Bimini and three tagged with pop-up archival transmitting tags in Andr...

journal_title：Journal of fish biology

authors： Guttridge TL,Gulak SJ,Franks BR,Carlson JK,Gruber SH,Gledhill KS,Bond ME,Johnson G,Grubbs RD

更新日期：2015-12-01 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：:The expression pattern of genes coding for enzymes of the retinoic acid (RA) synthetic and degradation pathways was characterized in adult female zebrafish Danio rerio. Females were conditioned until maturation and post-spawn expression dynamics were determined. A striking upregulation of cyp26b1, but not cyp26a1, was...

journal_title：Journal of fish biology

authors： Ruivo R,Capitão A,Castro LFC,Santos MM

更新日期：2018-04-01 00:00:00

abstract：:Median bull trout Salvelinus confluentus breeding was 2 weeks earlier in a cool stream than in a proximate warmer stream, aligning with expectations for salmonids, followed by emergence timing calculated to be 6 weeks later in the cool stream than the warm stream. This pattern is consistent with both site-specific ada...

journal_title：Journal of fish biology

authors： Austin CS,Essington TE,Quinn TP

更新日期：2019-01-01 00:00:00

abstract：:This study describes (1) the application of new methods to the discovery of informative single nucleotide polymorphism (SNP) markers in chum salmon Oncorhynchus keta, (2) a method to resolve the linkage phase of closely linked SNPs and (3) a method to inexpensively genotype them. Finally, it demonstrates that these SN...

journal_title：Journal of fish biology

authors： Garvin MR,Gharrett AJ

更新日期：2010-12-01 00:00:00

abstract：:The aim of this study was to monitor erythrocyte nuclear abnormalities (NA) including micronuclei (MN) in cultured and wild sea bass Dicentrarchus labrax and wild mullet Mugil spp. Seasonal sampling was performed at seven locations along the eastern coast of the Adriatic Sea. The frequency of NA and MN was positively ...

journal_title：Journal of fish biology

authors： Strunjak-Perovic I,Topic Popovic N,Coz-Rakovac R,Jadan M

更新日期：2009-07-01 00:00:00

abstract：:Although the sound production mechanisms of male and female Ophidion rochei (Ophidiidae) differ significantly, temperature affects them in the same manner. In both sexes, temperature correlated negatively with pulse period and positively with sound frequencies but had no, or weak effects on other sound characteristics...

journal_title：Journal of fish biology

authors： Kéver L,Boyle KS,Parmentier E

更新日期：2015-08-01 00:00:00