Five in situ observations of live oarfish Regalecus glesne (Regalecidae) by remotely operated vehicles in the oceanic waters of the northern Gulf of Mexico.

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：:Two to 14 alleles were found to be segregating per locus (mean 5·2), with observed and expected heterozygosities ranging from 0·08 to 0·78 and 0·08 to 0·94, respectively. Cross-amplification of six of these microsatellite loci indicated that they are also polymorphic in three species of Carcharhiniformes and two speci...

journal_title：Journal of fish biology

authors： Mendonça FF,Ussami LH,Hashimoto DT,Pereira LH,Porto-Foresti F,Oliveira C,Gadig OB,Foresti F

更新日期：2012-06-01 00:00:00

abstract：:Two new records of Hydrolagus melanophasma, one juvenile female from off the central Mexican coast and one adult male from off the coast of Ecuador, confirm the presence of this species throughout its known range in the eastern Pacific Ocean, from southern California, U.S.A., to Valdivia, Chile. This report gives a de...

journal_title：Journal of fish biology

authors： Aguirre-Villaseñor H,Salas-Singh C,Madrid-Vera J,Martínez-Ortiz J,Didier DA,Ebert DA

更新日期：2013-02-01 00:00:00

abstract：:Seasonal and ontogenetic shifts in the diet of Arctic charr Salvelinus alpinus were studied in a deep, ultra-oligotrophic lake in subarctic Finland from both stomach contents and the stable carbon (delta(13)C) and nitrogen (delta(15)N) isotope compositions of muscle and liver tissues. Both diet and isotope results ind...

journal_title：Journal of fish biology

authors： Eloranta AP,Kahilainen KK,Jones RI

更新日期：2010-07-01 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

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：:Because trace elements of otoliths are considered a natural marker capable of recognizing the chemical composition of ambient water and fish migration history, these elements could be potentially used to analyse the movement of reproductive (R) and non-reproductive (NR) mature-sized fish. Supposedly, it is not essenti...

journal_title：Journal of fish biology

authors： Bani A,Abdollahi R,Karimi N,Lyle JM,Thompson J

更新日期：2020-12-01 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：:Between 2000 and 2002, three artisanal landing sites were sampled in southern Chile, with data on population structure and reproductive development collected from 5477 yellownose skates Zearaja chilensis. Total length (L(T) ) ranged from 33 to 158 cm for females and 34 to 155 cm for males. No sexual dimorphism was evi...

journal_title：Journal of fish biology

authors： Bustamante C,Vargas-Caro C,Oddone MC,Concha F,Flores H,Lamilla J,Bennett MB

更新日期：2012-04-01 00:00:00

abstract：:Eleven single nucleotide polymorphisms (SNP) in Ctenopharyngodon idella toll-like receptor 7 (citlr7) gene, containing two in the 5'-flanking region, three within the single intron and six distributed in the coding sequence (CDS), were identified. A case-control study of 73 susceptible individuals and 67 resistant ind...

journal_title：Journal of fish biology

authors： Su JJ,Shang XY,Wan QY,Su JG

更新日期：2018-05-01 00:00:00

abstract：:A new species of Astyanax from the Rio Paraguaçu basin, Bahia, Brazil, is described. This new species is distinguished from its congeners known to occur in Brazilian drainages by the presence of small bony hooks on all fins of mature males. Furthermore, the new species can be diagnosed by its colour pattern, which con...

journal_title：Journal of fish biology

authors： Camelier P,Zanata AM

更新日期：2014-02-01 00:00:00

abstract：:According to Signal Detection Theory, the ability to detect a stimulus (discriminability, d') is inversely related to the magnitude of internal and external noise. In this study, downstream moving brown trout Salmo trutta were used to investigate whether external hydrodynamic noise (in this case turbulence) could mask...

journal_title：Journal of fish biology

authors： Kerr JR,Kemp PS

更新日期：2019-07-01 00:00:00

abstract：:Ichthyoplankton sampling and ovarian characteristics were used to elucidate whether the reproductive cycles of a spawning aggregation of snapper Pagrus auratus in a nearshore marine embayment were temporally and spatially specific and related with environmental conditions. The reproductive dynamics of this aggregation...

journal_title：Journal of fish biology

authors： Wakefield CB

更新日期：2010-10-01 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：:All extant holocephalans (Chimaeroidei) have lost the ability to make individual teeth, as tooth germs are not part of the embryonic development of the dental plates or of their continuous growth. Instead, a hypermineralized dentine with a unique mineral, whitlockin, is specifically distributed within a dentine framew...

journal_title：Journal of fish biology

authors： Smith M,Manzanares E,Underwood C,Healy C,Clark B,Johanson Z

更新日期：2020-07-01 00:00:00

abstract：:Juvenile and adult scale characteristics were used to compare two juvenile groups of Atlantic salmon in a large subarctic river in northern Scandinavia: individuals that have migrated from the main stem into small tributaries and those which remain in the main stem. Body size and scale measurements indicated enhanced ...

journal_title：Journal of fish biology

authors： Erkinaro J,Dempson JB,Julkunen M,Niemelä E

更新日期：1997-12-01 00:00:00

abstract：:We explored patterns, rates and unexpected socio-ecological consequences of tooth replacement in serrasalmids and characids of the Peruvian Amazon using microcomputed tomography. Of 24 specimens collected in February 2019, representing a mix of red-bellied piranha Pygocentrus nattereri, redeye piranha Serrasalmus rhom...

journal_title：Journal of fish biology

authors： Stuart CE,Green SJ,Vernygora O,LeBlanc ARH,Bertschi MH,Brown M

更新日期：2020-11-29 00:00:00

abstract：:Populations of endemic Croatian dace were found to belong to two different species, one of which is first described in this study. Telestes karsticus sp. nov. differed morphologically from Telestes polylepis in the total count of lateral line scales, number of gill rakers and the shape of the posterior margin of the a...

journal_title：Journal of fish biology

authors： Marčić Z,Buj I,Duplić A,Caleta M,Mustafić P,Zanella D,Zupančič P,Mrakovčić M

更新日期：2011-08-01 00:00:00

abstract：:A baited videographic survey at Pitcairn Island has significantly extended the known range for two reef-fish species: blue-lined triggerfish Xanthichthys caeruleolineatus and greater amberjack Seriola dumerili, with an additional minor extension noted for giant trevally Caranx ignobilis. This highlights the importance...

journal_title：Journal of fish biology

authors： Duffy HJ,Letessier TB,Irving RA

更新日期：2017-08-01 00:00:00

abstract：:To test ecological niche theory, this study investigated the spatial patterns and the environmental niches of native and non-native fishes within the invaded Great Fish River system, South Africa. For the native fishes, there were contrasting environmental niche breadths that varied from being small to being large and...

journal_title：Journal of fish biology

authors： Kadye WT,Booth AJ

更新日期：2020-05-01 00:00:00

abstract：:Recreational shore fishing along 250 km of the south and south-west coast of Portugal was studied based on roving creel and aerial surveys. Surveys were conducted between August 2006 and July 2007, following a stratified random-sampling design and provided information on catch and effort, harvest and discards, angler ...

journal_title：Journal of fish biology

authors： Veiga P,Ribeiro J,Gonçalves JM,Erzini K

更新日期：2010-06-01 00:00:00

abstract：:It was hypothesized that the structural heterogeneity provided by submerged trees positively favours the spatial distribution of fish abundance at early stages of development in an area under the influence of a Neotropical reservoir in the Paraná River basin. The distribution at early stages of development of the most...

journal_title：Journal of fish biology

authors： Gogola TM,Daga PS,Gubiani ÉA,da Silva PL,Sanches PV

更新日期：2016-07-01 00:00:00

abstract：:The evolutionary origin of the only north-west Saharan haplochromine cichlid, Astatotilapia desfontainii, was explored using mitochondrial DNA sequences. Phylogenetic analyses revealed that this species belonged to the main East African-Nilotic haplochromine clade, but was a distinct lineage that diverged from modern ...

journal_title：Journal of fish biology

authors： Genner MJ,Haesler MP

更新日期：2010-02-01 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：:Localized hypoxic habitats were created in Delta Marsh, Manitoba, Canada to determine the potential of regions of moderate hypoxia to act as refuges for forage fishes from piscine predators. Minnow traps and giving-up density (GUD) plates (plexiglas plates covered with trout crumble and fine gravel) were used to asses...

journal_title：Journal of fish biology

authors： Hedges KJ,Abrahams MV

更新日期：2015-01-01 00:00:00

abstract：:A reference staging series of 18 morphological stages of laboratory reared lake whitefish Coregonus clupeaformis is provided. The developmental processes of blastulation, gastrulation, neurulation as well as development of the eye, circulatory system, chromatophores and mouth are included and accompanied by detailed d...

journal_title：Journal of fish biology

authors： Sreetharan S,Thome C,Mitz C,Eme J,Mueller CA,Hulley EN,Manzon RG,Somers CM,Boreham DR,Wilson JY

更新日期：2015-09-01 00:00:00

abstract：:Fish that inhabit shallow water are exposed to periodic changes in tidal cues, including hydrostatic pressure (HP). The present study aimed at verifying differentially expressed genes (DEGs) in the brain of the threespot wrasse Halichoeres trimaculatus (tropical species) and the honbera wrasse Halichoeres tenuispinis ...

journal_title：Journal of fish biology

authors： Udagawa S,Hur SP,Byun JH,Takekata H,Takeuchi Y,Takemura A

更新日期：2020-10-01 00:00:00

abstract：:Here we present records of sharks obtained using baited remote underwater stereo-video systems (stereo-BRUVS) at two Brazilian oceanic islands. Fourteen of the 60 deployments recorded 19 sharks in Trindade Island. In Saint Peter and Saint Paul Archipelago (SPSPA), two pelagic and two demersal deployments recorded two ...

journal_title：Journal of fish biology

authors： Pimentel CR,Andrades R,Ferreira CEL,Gadig OBF,Harvey ES,Joyeux JC,Giarrizzo T

更新日期：2020-02-01 00:00:00

abstract：:The squaretail coralgrouper Plectropomus areolatus was identified as a fast-growing, early maturing and relatively short-lived aggregation-spawning epinephelid. Examinations of sectioned otoliths found females and males first maturing at 2 and 3 years, respectively, suggesting protogynous hermaphroditism; however, no ...

journal_title：Journal of fish biology

authors： Rhodes KL,Taylor BM,Wichilmel CB,Joseph E,Hamilton RJ,Almany GR

更新日期：2013-04-01 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