Sex differentiation in seasonal distribution of the starry smooth-hound Mustelus asterias.

abstract：:Food searching behaviour in a group of individually tagged 1-5 kg Atlantic cod Gadus morhua was studied in a set of three experiments in a sea cage with two underwater platforms, where restricted amounts of food was delivered several times per day during an acoustic training period. It took c. 1 week to train 20 naïve...

journal_title：Journal of fish biology

authors： Björnsson B,Karlsson H,Macrander A

更新日期：2018-11-01 00:00:00

abstract：:An eco-genetic model tuned on a population of marble trout Salmo marmoratus subject to periodic flood events was used to explore how the evolution of growth rates interacting with density-dependent processes can modify size at age and population structure and in turn influence the resilience of populations. Fish with ...

journal_title：Journal of fish biology

authors： Vincenzi S,Crivelli AJ,Satterthwaite WH,Mangel M

更新日期：2014-07-01 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：:Photo-identification and conventional tagging were used to estimate population size and structure of the whale shark Rhincodon typus near Holbox Island, Mexico. From 2005 to 2008, photographs of spot patterns behind the last gill slit and in a lateral view on the left side of each animal were used to identify individu...

journal_title：Journal of fish biology

authors： Ramírez-Macías D,Meekan M,De La Parra-Venegas R,Remolina-Suárez F,Trigo-Mendoza M,Vázquez-Juárez R

更新日期：2012-04-01 00:00:00

abstract：:The recovery of oxygen uptake to the standard metabolic rate (SMR) following exhaustive chasing exercise in Atlantic salmon Salmo salar parr occurred in three phases (rapid, plateau and slow). The initial recovery phase lasted 0·7 h and contributed 16% to the total excess post-exercise oxygen consumption (EPOC). It wa...

journal_title：Journal of fish biology

authors： Zhang Y,Claireaux G,Takle H,Jørgensen SM,Farrell AP

更新日期：2018-05-01 00:00:00

abstract：:The retinal development of the gilthead seabream Sparus aurata has been analysed from late embryonic development to juvenile stages using classical histological and immunohistological methods. Five significant phases were established. Phases 1 and 2 comprise the late embryonic and hatching stages, respectively. The re...

journal_title：Journal of fish biology

authors： Pavón-Muñoz T,Bejarano-Escobar R,Blasco M,Martín-Partido G,Francisco-Morcillo J

更新日期：2016-02-01 00:00:00

abstract：:Fourteen new microsatellite loci were developed and tested on Atlantic herring Clupea harengus with 39 individuals from Iceland and 49 individuals from Norway. The microsatellites, which contain di, tri and tetranucleotide repeats, are polymorphic (7-30 alleles), with observed heterozygosity ranging between 0·69 and 1...

journal_title：Journal of fish biology

authors： Libungan LA,Ólafsdóttir G,Skírnisdóttir S,Pálsson S,Pampoulie C,Björnsdóttir SH,Ólafsson K,Óskarsson GJ,Daníelsdóttir AK

更新日期：2012-09-01 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：:This study investigated whether a putative shift in climate regime in the North Atlantic in the 1990s coincided with changes in the growth and recruitment of roach Rutilus rutilus in the north-east of England. The relationships between R. rutilus growth and recruitment and the environment were significantly different ...

journal_title：Journal of fish biology

authors： Nunn AD,Frear PA,Lee M,Cowx IG

更新日期：2010-11-01 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：:The numbers of different types of ovarian follicles (developing, degenerating and postovulatory follicles) were estimated in bluefin tuna Thunnus thynnus using two stereological procedures: the model-based method of Weibel & Gomez, which has become a tool of broad application in the quantification of oocytes in fishes...

journal_title：Journal of fish biology

authors： Aragón L,Aranda G,Santos A,Medina A

更新日期：2010-08-01 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：: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：: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：:The Indo-Pacific mud sleeper Butis koilomatodon (Eleotridae) is recorded for the first time in the south-western Atlantic Ocean, based on 23 specimens caught at seven localities along the northern, north-eastern, eastern and south-eastern Brazilian coast. The occurrence of males and females in different ontogenetic st...

journal_title：Journal of fish biology

authors： Macieira RM,Giarrizzo T,Gasparini JL,Sazima I

更新日期：2012-07-01 00:00:00

abstract：:Latitudinal variation in egg size and number in anadromous masu salmon Oncorhynchus masou was examined. Relatively greater variation in egg size occurred among rivers than among females within rivers or within females. Egg size was generally greater and egg number generally lower at more northerly latitudes. ...

journal_title：Journal of fish biology

authors： Morita K,Tamate T,Sugimoto Y,Tago Y,Watanabe T,Konaka H,Sato M,Miyauchi Y,Ohkuma K,Nagasawa T

更新日期：2009-02-01 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：:Seventy-six individuals of the European mudminnow Umbra krameri from two recent populations from Serbia (Bakreni Batar and Lugomir) and one from Bosnia and Herzegovina (Gromiželj) were analysed for habitat preferences and population structure. The population from Lugomir is a newly recorded population in Serbia. Besid...

journal_title：Journal of fish biology

authors： Sekulić N,Marić S,Galambos L,Radošević D,Krpo-Ćetković J

更新日期：2013-09-01 00:00:00

abstract：:To test the hypothesis that a switch in diet might cause changes in the abundance and composition of mucous-dwelling microorganisms, a short-term experiment was conducted with Atlantic salmon Salmo salar. Fish were fed on three different diets: pelleted S. salar feed, macroinvertebrates or pellets supplemented with an...

journal_title：Journal of fish biology

authors： Landeira-Dabarca A,Sieiro C,Álvarez M

更新日期：2013-03-01 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：:American shad Alosa sapidissima, an anadromous clupeid, exhibits variation in reproductive strategies, including semelparity and iteroparity. It provides an excellent model for studying the behaviour of germ cells in anadromous fish during their migration from sea to river. The vasa gene was characterized in A. sapidi...

journal_title：Journal of fish biology

authors： Wu XL,Tang ZK,Li W,Chu ZJ,Hong XY,Zhu XP,Xu HY

更新日期：2018-05-01 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：:Analysis of feeding habits was performed for early life stages of Brachyplatystoma rousseauxii and Brachyplatystoma filamentosum in the Madeira River, Brazil. Stomach contents of B. rousseauxii and B. filamentosum were identified and analysed to provide the percentage of frequency of occurrence (%FO) and area (%A) and...

journal_title：Journal of fish biology

authors： Márquez-Velásquez V,Galdino Leite R,Hernandez-Serna A,Alvarado F

更新日期：2021-01-01 00:00:00

abstract：:Two fluviolacustrine lineages (SI1 Barbus and SI2 Barbus) of the Barbus genus have been recently detected in the Apulia-Campania ichthyogeographic district (southern Italy). The aim of this study was to solve the taxonomic structure of these lineages by comparing them with the two already established Italian fluviolac...

journal_title：Journal of fish biology

authors： Lorenzoni M,Carosi A,Quadroni S,De Santis V,Vanetti I,Delmastro GB,Zaccara S

更新日期：2021-01-23 00:00:00

abstract：:This study reports on the first record of the intermediate scabbardfish Aphanopus intermedius in the western South Atlantic Ocean, based on a single specimen 725 mm standard length collected between 0 and 610 m depth around Rocas Atoll off north-eastern Brazil. Measurements and counts are provided and compared with th...

journal_title：Journal of fish biology

authors： Eduardo LN,Villarins BT,Lucena-Frédou F,Frédou T,Lira AS,Bertrand A,Mincarone MM

更新日期：2018-11-01 00:00:00

abstract：:Cetopsis varii sp. nov. Cetopsidae (Cetopsinae) is described from the Río Meta basin in eastern Colombia, at middle portions of the Río Orinoco basin. The new species differs from congeners by a combination of features: the absence of a humeral spot, presence of eye, conical teeth on vomer and dentary and rounded post...

journal_title：Journal of fish biology

authors： Abrahão VP,de Pinna MCC

更新日期：2018-07-01 00:00:00

abstract：:The movement of barbel Barbus barbus free embryos in the interstitial zone and the timing of larval emergence were studied for 12 days in an artificial stream. After egg fertilization (day 1), hatching occurred on day 6, downstream interstitial movements of free embryos on day 9 and emergence and downstream movement o...

journal_title：Journal of fish biology

authors： Vilizzi L,Copp GH

更新日期：2013-03-01 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：:A full factorial crossing experiment with five females and five males of each of two coregonid species from upper Lake Constance was used to test for intrinsic post-zygotic incompatibilities during early ontogeny. Up until shortly before hatching, there was no difference in embryo mortality between homo and heterologo...

journal_title：Journal of fish biology

authors： Eckmann R

更新日期：2015-05-01 00:00:00

abstract：:For the first time, radio-tracking observations were made over 24 h cycles during the growing season to quantify the habitat use and home range of Zingel asper, a critically endangered fish species, endemic to the Rhône River with a high risk of extinction (IUCN). New advances in radio telemetry with regard to the siz...

journal_title：Journal of fish biology

authors： Cavalli L,Knight CM,Durbec M,Chappaz R,Gozlan RE

更新日期：2009-08-01 00:00:00