Is there genetic variation in the response to competition intensity in juvenile brown trout Salmo trutta?

abstract：:This study compared the growth rates of female masu salmon Oncorhynchus masou, who possessed a male-specific gene marker, the growth hormone pseudogene (GHp), and normal females, as estimated from their scale growth. There was a difference between the growth rates of GHp-positive females and those of normal females of...

journal_title：Journal of fish biology

authors： Yamamoto T,Kitanishi S

更新日期：2014-01-01 00:00:00

abstract：:A new species of the catfish genus Centromochlus (Auchenipteridae, Centromochlinae) is described. The new species is diagnosed by having numerous dark rounded blotches over the body and fins, dorsal-fin spine with serrations anteriorly and smooth posteriorly, anal fin of mature males with three unbranched and seven br...

journal_title：Journal of fish biology

authors： Birindelli JL,Sarmento-Soares LM,Lima FC

更新日期：2015-10-01 00:00:00

abstract：:The Kahuzi-Biega National Park (KBNP), situated mainly in the Eastern Highlands Ecoregion of the Upper Congo basin, is drained by the Lowa and Ulindi rivers, and some western affluents of Lake Kivu. In this study, the first list of the fish diversity of these systems is provided based on museum collections and complem...

journal_title：Journal of fish biology

authors： Kisekelwa T,Snoeks J,Vreven E

更新日期：2020-03-01 00:00:00

abstract：:In this study, life-history traits (maximum and average size, size at maturity and fecundity) of two congeneric smooth-hounds, Mustelus mustelus and Mustelus punctulatus, which share a geographical distribution and experience a similar fishing exploitation, were estimated and compared between species. The results indi...

journal_title：Journal of fish biology

authors： Riginella E,Correale V,Marino IAM,Rasotto MB,Vrbatovic A,Zane L,Mazzoldi C

更新日期：2020-03-01 00:00:00

abstract：:Variation of the ND5/6 mtDNA fragment was studied in six Nile tilapia populations using PCR and RFLP analysis. The observed variation allows a strict discrimination between eastern and western African populations. ...

journal_title：Journal of fish biology

authors： Rognon X,Guyomard R

更新日期：1997-07-01 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：:As fish communities are a major concern in rivers ecosystems, we investigated if their environmental (e)DNA signals vary according to the sampling period or hydromorphological conditions. Three rivers were studied over a year using eDNA metabarcoding approach. The majority of the species (c. 80%) were detected all yea...

journal_title：Journal of fish biology

authors： Milhau T,Valentini A,Poulet N,Roset N,Jean P,Gaboriaud C,Dejean T

更新日期：2019-11-01 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：:A lag in the increase in oxygen consumption (MO2 ) occurs at the start of sustainable exercise in trout. Waterborne dichloroacetate (0.58 and 3.49 mmol l-1 ), a compound which activates pyruvate dehydrogenase (PDH) by inhibiting PDH kinase in muscle, accelerates the increase in MO2 during the first 10 min of sustainab...

journal_title：Journal of fish biology

authors： Wood CM,Pane EF,Heigenhauser GJF

更新日期：2020-10-01 00:00:00

abstract：:Shoaling and sexual behaviour of wild-type male and female white cloud mountain minnow Tanichthys albonubes were measured in the presence of the red fluorescent transgenic conspecifics under laboratory conditions. Wild-type female test fish showed no significant preference, whereas wild-type male test fish preferred t...

journal_title：Journal of fish biology

authors： Jiang P,Bai JJ,Ye X,Jian Q,Chen M,Chen XQ

更新日期：2011-01-01 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：:The present study reports a previously undocumented mass spawning aggregation and group spawning phenomena of c. 1200 individual bumphead parrotfish Bolbometopon muricatum in Palau, Micronesia. Although B. muricatum are protected in Palau, it is further recommended that management strategies should consider establishm...

journal_title：Journal of fish biology

authors： Roff G,Doropoulos C,Mereb G,Mumby PJ

更新日期：2017-07-01 00:00:00

abstract：:The community structure of the reef fish fauna of Trindade Island, a volcanic oceanic island located 1160 km off the coast of Brazil, is described based on intensive visual censuses. Seventy-six species were encountered in 252 censuses, with mean ± S.E. of 99 ± 3 individuals and 15.7 ± 0.3 species 40 m(-2) transect. T...

journal_title：Journal of fish biology

authors： Pinheiro HT,Ferreira CE,Joyeux JC,Santos RG,Horta PA

更新日期：2011-12-01 00:00:00

abstract：:A new loach Oreonectes guilinensis sp. nov. is described from Guangxi Zhuang Autonomous Region, China. It is the second surface-dwelling fish identified in the genus Oreonectes after the type species Oreonectes platycephalus. This new species can be distinguished from other species within the genus by the combination ...

journal_title：Journal of fish biology

authors： Huang JQ,Yang J,Wu ZQ,Zhao YH

更新日期：2020-01-01 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：:Needlefishes (Beloniformes) were observed employing a range of stalking and attacking behaviours to attack schools of bait fishes ranging from the use of tactics common to predatory fishes to a novel behaviour: the use of leaping, aerial attacks. These aerial attacks are suggested to serve two purposes: to extend the ...

journal_title：Journal of fish biology

authors： Day RD,Mueller F,Carseldine L,Meyers-Cherry N,Tibbetts IR

更新日期：2016-02-01 00:00:00

abstract：:Blood sampling through the caudal vasculature is a widely used technique in fish biology for investigating organismal health and physiology. In live fishes, it can provide a quick, easy and relatively non-invasive method for obtaining a blood sample (cf. cannulation and cardiac puncture). Here, a general set of recomm...

journal_title：Journal of fish biology

authors： Lawrence MJ,Raby GD,Teffer AK,Jeffries KM,Danylchuk AJ,Eliason EJ,Hasler CT,Clark TD,Cooke SJ

更新日期：2020-07-01 00:00:00

abstract：:Tenualosa ilisha was found recently in the Perak River in western Peninsular Malaysia. Molecular phylogenetic and haplotype network analyses suggest that T. ilisha has two genetically distinct populations/groups: (i) Peninsular Malaysia (Malaysia population), and (ii) Peninsular Malaysia, Thailand, India and Banglades...

journal_title：Journal of fish biology

authors： Arai T,Taha H,Amalina R,Iizuka Y,Chang CW

更新日期：2019-12-01 00:00:00

abstract：:The distribution patterns of alpine bullhead Cottus poecilopus in three tributary streams of the Rožnovská Bečva River (Danube basin) were studied with respect to temperature, oxygen concentration and saturation, shading, current, conductivity, total organic carbon (TOC), nitrates and phosphates, biochemical oxygen de...

journal_title：Journal of fish biology

authors： Baran R,Kubecka J,Kubín M,Lojkásek B,Mrkvička T,Ricard D,Rulík M

更新日期：2015-02-01 00:00:00

abstract：:Characidium fishes with a sex chromosome system form a monophyletic group. This work presents data of Characidium lanei from the South Atlantic basin (Brazil), including an unknown type of ZW sex chromosome system for the groups including the presence of rDNA sites on sex chromosomes. ...

journal_title：Journal of fish biology

authors： Noleto RB,Amorim AP,Vicari MR,Artoni RF,Cestari MM

更新日期：2009-08-01 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：:Haplochromis pharyngalis and Haplochromis petronius, two endemic cichlids from the Lake Edward system (Uganda, Democratic Republic of the Congo), are very similar in general morphology but have been reported to differ in pharyngeal jaw morphology and distribution. This study analysed 51 morphometrics and various quali...

journal_title：Journal of fish biology

authors： Vranken N,Van Steenberge M,Balagizi A,Snoeks J

更新日期：2020-11-01 00:00:00

abstract：:The oxygen consumption (MO2) of two groups of 10° C acclimated steelhead trout Oncorhynchus mykiss was measured for 72 h after they were given a 100 µl kg(-1) intraperitoneal injection of formalin-killed Aeromonas salmonicida (ASAL) or phosphate-buffered saline (PBS). In addition, plasma cortisol levels were measured ...

journal_title：Journal of fish biology

authors： Zanuzzo FS,Urbinati EC,Nash GW,Gamperl AK

更新日期：2015-07-01 00:00:00

abstract：:Seasonal variation in large-scale habitat selection by fishes in shallow, Canadian waters of the Detroit River was examined. Fish communities were compared among three river segments (upstream, middle and downstream) consisting of areas of shallow water habitat separated by wide hydrologic barriers of deep, flowing wa...

journal_title：Journal of fish biology

authors： Lapointe NW,Corkum LD,Mandrak NE

更新日期：2010-02-01 00:00:00

abstract：:Video cameras recorded the diurnal visitation rates of transient (large home range) piscivorous fishes to coral patch reefs in The Bahamas and identified 11 species. Visits by bar jack Caranx ruber, mutton snapper Lutjanus analis, yellowtail snapper Ocyurus chrysurus, barracuda Sphyraena barracuda and cero Scomberomor...

journal_title：Journal of fish biology

authors： Harborne AR,Selwyn JD,Lawson JM,Gallo M

更新日期：2017-01-01 00:00:00

abstract：:The first record of the smooth puffer Lagocephalus laevigatus from Galician waters (north-west Spain) is reported. Three possible mechanisms of introduction of the specimen are considered: natural displacement, the aquarist trade and transport in ballast water. ...

journal_title：Journal of fish biology

authors： Bañón R,Santás V

更新日期：2011-05-01 00:00:00

abstract：:Macrhybopsis reproduction and propagule traits were studied in the laboratory using two temperature regimes and three hormone treatments to determine which methods produced the most spawns. Only sicklefin chub Macrhybopsis meeki spawned successfully although sturgeon chub Macrhybopsis gelida released unfertilized eggs...

journal_title：Journal of fish biology

authors： Albers JL,Wildhaber ML

更新日期：2017-07-01 00:00:00

abstract：:Phylogenetic structure of four Lampetra species from the Pacific drainage of North America (western brook lamprey Lampetra richardsoni, Pacific brook lamprey Lampetra pacifica, river lamprey Lampetra ayresii and Kern brook lamprey Lampetra hubbsi) and unidentified Lampetra specimens (referred to as Lampetra sp.) from ...

journal_title：Journal of fish biology

authors： Boguski DA,Reid SB,Goodman DH,Docker MF

更新日期：2012-11-01 00:00:00

abstract：:The use of archival depth telemetry as a means of remotely assessing the reproductive rates of free-ranging fishes is explored. This is achieved by electronically tracking the vertical movements of individual female small spotted catsharks Scyliorhinus canicula in the natural environment, whilst simultaneously evaluat...

journal_title：Journal of fish biology

authors： Wearmouth VJ,Southall EJ,Morritt D,Sims DW

更新日期：2013-01-01 00:00:00

abstract：:The coding region of neuropeptide Y (NPY) complementary (c)DNA was cloned from the hypothalamus RNA of black seabream Acanthopagrus schlegelii, including 297 bp coding for prepro-NPY of 98 amino acids. Real-time reverse transcriptase-polymerase chain reaction was performed to determine A. schlegelii npy gene expressio...

journal_title：Journal of fish biology

authors： Ma XL,Zheng LW,Mao LT,Zhou LB,Wang AL

更新日期：2013-04-01 00:00:00