A new species of Centromochlus (Siluriformes, Auchenipteridae, Centromochlinae) from the middle Rio Tocantins basin, Brazil.

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

abstract：:Association preferences and aggression intensity were investigated in relation to kin and familiarity in the self-fertilizing, clonal vertebrate, the mangrove killifish Kryptolebias marmoratus. Results indicated that fish preferentially associated with and exhibited less intense aggression towards members of their own...

journal_title：Journal of fish biology

authors： Edenbrow M,Croft DP

更新日期：2012-03-01 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：: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 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：: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：:In the Welsh part of the Irish Sea, a method was developed for assessing the sensitivity of different seabed habitats to existing fishing activities, across a range of potential fishing intensities. The resistance of 31 habitats and their associated biological assemblage to damage by 14 categories of fishing activity ...

journal_title：Journal of fish biology

authors： Eno NC,Frid CL,Hall K,Ramsay K,Sharp RA,Brazier DP,Hearn S,Dernie KM,Robinson KA,Paramor OA,Robinson LA

更新日期：2013-10-01 00:00:00

abstract：:The sedentary, predatory characin Hoplias malabaricus has one of the widest distributions of freshwater fishes in South America and is characterized by seven karyomorphs (A-G) that occur in sympatric and allopatric populations. Karyotypical patterns of variation in wild populations have been interpreted as evidence of...

journal_title：Journal of fish biology

authors： Santos U,Völcker CM,Belei FA,Cioffi MB,Bertollo LA,Paiva SR,Dergam JA

更新日期：2009-12-01 00:00:00

abstract：:The Argentine hake, Merluccius hubbsi, is one of the most important fishing species in the Argentine Sea due to its great abundance and high-quality meat. The study of the nutritional condition is widely used to determine the physiological state of the fish larvae and to estimate their survival possibilities. The larv...

journal_title：Journal of fish biology

authors： Cohen S,Díaz AO,Diaz MV

更新日期：2021-01-01 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：:Darters (Percidae: Etheostomatinae), a species-rich group of North American freshwater fishes, vary in the presence of a premaxillary fraenum, a strip of skin that connects the premaxillary bones to the snout, and it is hypothesized that this trait is a trophic adaptation to particular substrata. Ancestral state recon...

journal_title：Journal of fish biology

authors： Ciccotto PJ,Mendelson TC

更新日期：2015-10-01 00:00:00

abstract：:The development of the epidermis of sea lamprey Petromyzon marinus along the whole life cycle was studied using conventional staining techniques and lectin histochemistry. The epidermis undergoes variations in morphology and thickness throughout development. The simple cuboidal epithelium found in the epidermis of pro...

journal_title：Journal of fish biology

authors： Rodríguez-Alonso R,Megías M,Pombal MA,Molist P

更新日期：2017-07-01 00:00:00

abstract：:Isotopic composition of (87) Sr:(86) Sr and natural elemental tracers (Sr, Ba, Mg, Mn and Ca) were quantified from otoliths in juvenile and adult Chinook salmon Oncorhynchus tshawytscha to assess the ability of otolith microchemistry and microstructure to reconstruct juvenile O. tshawytscha rearing habitat and growth....

journal_title：Journal of fish biology

authors： Bourret SL,Kennedy BP,Caudill CC,Chittaro PM

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：:Introduced Gambusia holbrooki in a natural lagoon of southern Spain consisted of two age groups: 1992 cohort, 7-11 months old and 1993 cohort, <4 months old. In the 1992 cohort, females grew even during the gestation period at about 0.30 mm day-1. In the 1993 cohort, females displayed a high growth rate (0.55 mm day-1...

journal_title：Journal of fish biology

authors： Fernandez-Delgado C,Rossomanno S

更新日期：1997-07-01 00:00:00

abstract：:In some small, often unstable, streams of the Gila River drainage, New Mexico, Gila trout Oncorhynchus gilae populations fluctuated numerically seasonally and annually. Few differences were noted in length-weight and size-structure comparisons, but Fulton condition index varied significantly. Time of sample and time s...

journal_title：Journal of fish biology

authors： Propst DL,Stefferud JA

更新日期：1997-12-01 00:00:00

abstract：:Coping style is defined as a set of individual physiological and behavioural characteristics that are consistent across time and context. In the zebrafish Danio rerio, as well as in many other animals, several covariations have been established among behavioural, physiological and molecular responses. Nonetheless, not...

journal_title：Journal of fish biology

authors： Alfonso S,Peyrafort M,Cousin X,Bégout ML

更新日期：2020-06-01 00:00:00

abstract：:We report the effects of food deprivation on the early development of Pacific red snapper Lutjanus peru during the first days of development. The point of no return (PNR) was determined using the feeding incidence after a delay in first feeding. The gradual deterioration of the larvae during food deprivation was recor...

journal_title：Journal of fish biology

authors： Peña R,Moguel-Hernández I,Haro-Ballesteros GM

更新日期：2021-01-07 00:00:00

abstract：:Evidence of facultative corallivory is documented in three species of obligate coral-dwelling gobies (genus Gobiodon) based on the presence of spirocysts in gut contents. Coral-dwelling gobies also consumed a broad range of other items with gut contents dominated by algae, invertebrates and amorphous material. Dietary...

journal_title：Journal of fish biology

authors： Brooker RM,Munday PL,Ainsworth TD

更新日期：2010-06-01 00:00:00

abstract：:The phylogeographical structure of brown trout Salmo trutta in Britain and Ireland was studied using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of four mitochondrial DNA segments (16S/ND1, ND5/6, COXIII/ND5 and ND5/12S). Analysis of 3636 individuals from 83 sites-morphotypes...

journal_title：Journal of fish biology

authors： McKeown NJ,Hynes RA,Duguid RA,Ferguson A,Prodöhl PA

更新日期：2010-02-01 00:00:00

abstract：:Characidium iaquira, a new species from the upper rio Juruena, rio Tapajós basin, Brazil, is described. The new species can be promptly distinguished from all congeners by having a unique v-shaped dark mark lying along the caudal-fin extension, in medium- and large-sized specimens, and a remarkable iridescent green co...

journal_title：Journal of fish biology

authors： Zanata AM,Ohara WM,Oyakawa OT,Dagosta FCP

更新日期：2020-11-01 00:00:00

abstract：:The aim of this study is to report the presence of a three non-native hybrid long-whiskered catfishes (family Pimelodidae) in the Upper Paraná River basin, Brazil. Genetic analyses demonstrated that the three presumptive hybrids were a result of the crossbreeding of Pseudoplatystoma reticulatum (central Amazonas River...

journal_title：Journal of fish biology

authors： Yabu MHS,Vidotto-Magnoni AP,Casimiro ACR,Garcia DAZ,Costa ADA,Prado FDD,Porto-Foresti F,Orsi ML

更新日期：2018-01-01 00:00:00

abstract：:In this study, several neuropeptides were identified by immunohistochemistry in neuroendocrine cells (NEC) located in the gut epithelium and nerve cell bodies of the enteric nervous system of pejerrey Odontesthes bonariensis, a species that is a promising candidate for intensive aquaculture. The neuropeptides involved...

journal_title：Journal of fish biology

authors： Vigliano FA,Muñoz L,Hernández D,Cerutti P,Bermúdez R,Quiroga MI

更新日期：2011-03-01 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：: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：: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：:This study examined the usefulness of portable ultrasonography in accurately predicting pregnancy and fecundity in the bonnethead shark Sphyrna tiburo by comparing ultrasound-obtained data with those obtained from animal dissection, the gold standard for elasmobranch reproduction studies. Mature female S. tiburo (n = ...

journal_title：Journal of fish biology

authors： Anderson B,Belcher C,Slack J,Gelsleichter J

更新日期：2018-12-01 00:00:00

abstract：:Transect surveys of hamlet communities (Hypoplectrus spp., Serranidae) covering 14 000 m2 across 16 reefs off La Parguera, Puerto Rico, are presented and compared with a previous survey conducted in the year 2000. The hamlet community has noticeably changed over 17 years, with a > 30% increase in relative abundance of...

journal_title：Journal of fish biology

authors： Hench K,Mcmillan WO,Betancur-R R,Puebla O

更新日期：2017-11-01 00:00:00

abstract：:In this study, molecular characteristics of march5b and co-expression of march5b and tlr7 in response to the infection of Cryptocaryon irritans in the large yellow croaker Larimichthys crocea were investigated. The full-length complementary (c)DNA of march5b was 1314 bp, including an open reading frame of 846 bp encod...

journal_title：Journal of fish biology

authors： Zhang DL,Yu DH,Chen J,Chen C,Wang ZY

更新日期：2015-08-01 00:00:00

abstract：:In this paper, we investigate the period of successful spawning for black bream Acanthopagrus butcheri, an obligate estuarine species in southern Australia that typically spawn in spring and early summer. However, back-calculated spawning dates of juveniles sampled in Gippsland Lakes, Victoria from February to May 201...

journal_title：Journal of fish biology

authors： Jenkins GP,Kent JA,Woodland RJ,Warry F,Swearer SE,Cook PLM

更新日期：2018-11-01 00:00:00