Ionic regulation and Na(+)-K(+)-ATPase activity in gills and kidney of the freshwater stingray Paratrygon aiereba living in white and blackwaters in the Amazon Basin.

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：:Fish reproduction is likely to be affected by increasing water temperatures arising from climate change. Normal changes in environmental temperature have the capacity to affect endocrine function and either advance or retard gametogenesis and maturation, but above-normal temperatures have deleterious effects on reprod...

journal_title：Journal of fish biology

authors： Pankhurst NW,King HR

更新日期：2010-01-01 00:00:00

abstract：:Stable isotope and gut content analyses, in conjunction with backcalculated length-at-age estimates of growth, were employed to examine the relationship between trophic ecology and growth rate of a successful invader, Rutilus rutilus, in eight lakes in Ireland. The data revealed that R. rutilus was a trophic generalis...

journal_title：Journal of fish biology

authors： Hayden B,Massa-Gallucci A,Harrod C,O'grady M,Caffrey J,Kelly-Quinn M

更新日期：2014-04-01 00:00:00

abstract：:Juvenile steelhead Oncorhynchus mykiss from a northern California Central Valley population were reared in a controlled laboratory experiment. Significantly different rates of growth were observed among fish reared under two ration treatments and three temperature treatments (8, 14 and 20°C). Wider circulus spacing an...

journal_title：Journal of fish biology

authors： Beakes MP,Sharron S,Charish R,Moore JW,Satterthwaite WH,Sturm E,Wells BK,Sogard SM,Mangel M

更新日期：2014-01-01 00:00:00

abstract：:The sexual ontogeny of butterfish Odax pullus was examined in the Hauraki Gulf of New Zealand through histological analysis of gonad material, size and age information and seasonal patterns of sexual maturation. The patterns of gonad development and schedules of male recruitment were established and sexual ontogeny of...

journal_title：Journal of fish biology

authors： Trip ED,Clements KD,Raubenheimer D,Choat JH

更新日期：2011-03-01 00:00:00

abstract：:In this study, female preferences and behavioural isolation were estimated in a pair of allopatric sister species, Etheostoma duryi and Etheostoma flavum. Dichotomous mate preference trials were conducted to determine whether females prefer to associate with conspecific over heterospecific males and free-spawning assa...

journal_title：Journal of fish biology

authors： Martin MD,Mendelson TC

更新日期：2013-11-01 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：:The goals of this project were to determine the daily, seasonal and spatial patterns of red grouper Epinephelus morio sound production on the West Florida Shelf (WFS) using passive acoustics. An 11 month time series of acoustic data from fixed recorders deployed at a known E. morio aggregation site showed that E. mori...

journal_title：Journal of fish biology

authors： Wall CC,Simard P,Lindemuth M,Lembke C,Naar DF,Hu C,Barnes BB,Muller-Karger FE,Mann DA

更新日期：2014-11-01 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：:Acute thermal and asphyxia exposure risks for freshwater fish occupying three tropical wetland typologies were examined. Field water-quality data revealed that fish in wetlands grazed by pigs had the highest exposure risks, because they are shallow and heavily damaged by pig activities. In contrast, with the exception...

journal_title：Journal of fish biology

authors： Waltham NJ,Schaffer JR

更新日期：2018-10-01 00:00:00

abstract：:The diet of pearly razorfish Xyrichtys novacula, caught monthly along the shores of the Island of Lampedusa, appeared to be mainly composed of crustaceans, followed by colonial ascidians, molluscs and polychaetes. Among prey, sand dwellers and phanerogam-associated species were recorded. In winter months, the diet was...

journal_title：Journal of fish biology

authors： Castriota L,Falautano M,Finoia MG,Campo D,Scarabello MP,Andaloro F

更新日期：2010-05-01 00:00:00

abstract：:Seasonal changes in relative abundance and biomass of nektonic predators were analysed on the eastern Patagonian Shelf and continental slope; one of the most productive large marine ecosystems of the southern hemisphere. Several migratory types were revealed for species belonging to either temperate or sub-Antarctic f...

journal_title：Journal of fish biology

authors： Arkhipkin A,Brickle P,Laptikhovsky V,Winter A

更新日期：2012-07-01 00:00:00

abstract：:In this study, a flow-cytometric cell cycle analysis method to assess instantaneous growth rate of whole larvae of the Australian barramundi Lates calcarifer was developed and validated. High-resolution DNA measurements of either fresh, frozen or RNAlater-preserved larvae (gap0-gap1, G(0) -G(1), coefficient of variati...

journal_title：Journal of fish biology

authors： Domingos JA,Fromm P,Smith-Keune C,Jerry DR

更新日期：2012-05-01 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：:Analysis of maximum depth of occurrence of 11 952 marine fish species shows a global decrease in species number (N) with depth (x; m): log10 N = -0·000422x + 3·610000 (r(2)  = 0·948). The rate of decrease is close to global estimates for change in pelagic and benthic biomass with depth (-0·000430), indicating that spe...

journal_title：Journal of fish biology

authors： Priede IG,Froese R

更新日期：2013-12-01 00:00:00

abstract：:This study tested the behavioural effects of tagging subyearling and yearling lingcod Ophiodon elongatus with acoustic telemetry tags in laboratory tanks and in the natural environment (Puget Sound, WA). In the laboratory, tagged individuals showed less movement and feeding behaviour soon after tagging than untagged c...

journal_title：Journal of fish biology

authors： Lee JS,Tezak EP,Berejikian BA

更新日期：2013-06-01 00:00:00

abstract：:The field data from four humic lakes suggested that water colour may have both direct and indirect effects on inter- and intra-specific interactions of perch Perca fluviatilis and roach Rutilus rutilus. The results agree with suggestions that, compared with R. rutilus, P. fluviatilis may be an inferior forager on zoop...

journal_title：Journal of fish biology

authors： Estlander S,Nurminen L,Olin M,Vinni M,Immonen S,Rask M,Ruuhijärvi J,Horppila J,Lehtonen H

更新日期：2010-07-01 00:00:00

abstract：:The diel vertical distribution of young-of-the-year (YOY) burbot Lota lota in the pelagic zone of Lake Constance was compared to light intensity at the surface and to the light intensity at their mean depth. Lota lota larvae inhabited the pelagic zone of Lake Constance from the beginning of May until the end of August...

journal_title：Journal of fish biology

authors： Probst WN,Eckmann R

更新日期：2009-01-01 00:00:00

abstract：:Chaetostoma chimu sp. nov. is described from 119 specimens collected in the Andean foothills of the Orinoco River in Colombia. The new species can be distinguished from congeners by a combination of characters, including shape of cheek odontodes, presence of a supraoccipital excrescence, sexual dimorphism characters a...

journal_title：Journal of fish biology

authors： Urbano-Bonilla A,Ballen GA

更新日期：2020-12-05 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：:Morphological (growth, Fulton's condition factor), physiological (per cent dry mass, total lipid content) and behavioural (activity levels) response patterns of carp gudgeon Hypseleotris spp. were examined in response to food deprivation during a 56 day experiment. Considerable variability in the nature and magnitude ...

journal_title：Journal of fish biology

authors： Ning NS,Hladyz S,Gawne B,Maffei S,Price A,Nielsen DL

更新日期：2012-01-01 00:00:00

abstract：:Hybrid advantage, described as the superiority of hybrids in some traits over their parents and termed the "heterosis effect," is widely documented in the case of reciprocal crosses of parental species (i.e., hybrids representing the F1 generation). In fish, high survival, fast growth and better health status have bee...

journal_title：Journal of fish biology

authors： Šimková A,Janáč M,Hyršl P,Krasnovyd V,Vetešník L

更新日期：2020-12-19 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：:Assemblages of roving herbivores were consistently different between eastern, warmer, sheltered sites and western, colder, more wave-exposed sites. At eastern sites, detritivorous-herbivorous species dominated while omnivores had the highest biomass and were dominant at western sites. Macroalgivores did not show any t...

journal_title：Journal of fish biology

authors： Cordeiro CA,Mendes TC,Harborne AR,Ferreira CE

更新日期：2016-07-01 00:00:00

abstract：:Fishes belonging to the family Clinidae in South Africa display super-embryonation, a rare reproductive mode were females gestate broods at different gestational stages, but little is known regarding the mating systems of this family. Here we tested the hypothesis that multiple males would contribute not only to the o...

journal_title：Journal of fish biology

authors： Schulze MJ,Henriques R,Feldheim KA,Bowie RCK,von der Heyden S

更新日期：2018-05-01 00:00:00

abstract：:Petroleuciscus ninae sp. nov. is described from the Büyük Menderes River drainage. The new species is distinguished by having a black lateral stripe from head to base of caudal fin, stripe distinct anteriorly and posteriorly, wider than eye diameter; numerous black pigments on anal-fin rays; body depth at dorsal-fin o...

journal_title：Journal of fish biology

authors： Turan D,Kalayci G,Kaya C,Bektaş Y,Küçük F

更新日期：2018-04-01 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：:This study evaluated Atlantic salmon Salmo salar smolt survival through the lower Penobscot River, Maine, U.S.A., and characterized relative differences in proportional use and survival through the main-stem of the river and an alternative migration route, the Stillwater Branch. The work was conducted prior to removal...

journal_title：Journal of fish biology

authors： Stich DS,Bailey MM,Zydlewski JD

更新日期：2014-10-01 00:00:00

abstract：:Sturgeon spermatozoa are unique for their sustained motility. We investigated the relative importance of bioenergetic pathways in the energy supply of Siberian sturgeon Acipenser baerii spermatozoa during motile and immotile states. Spermatozoon motility and oxygen consumption rate (OCR) were analysed following exposu...

journal_title：Journal of fish biology

authors： Rahi D,Dzyuba B,Xin M,Cheng Y,Dzyuba V

更新日期：2020-08-01 00:00:00

abstract：:This study found that introgressive hybridization of the pallid sturgeon Scaphirhynchus albus with the common shovelnose sturgeon Scaphirhynchus platorynchus has probably occurred across the range of S. albus. Bayesian clustering found evidence of hybridization in all management units of S. albus. Some individuals wer...

journal_title：Journal of fish biology

authors： Schrey AW,Boley R,Heist EJ

更新日期：2011-12-01 00:00:00