Conservation value of Codium tenue habitat for the endangered Knysna seahorse Hippocampus capensis.

abstract：:In recent years, the increasing use of fish as new animal models in scientific research and the growth of fish farming (mainly for human consumption) have highlighted the need for advanced technology to deepen our knowledge of fish biology. Hence, the present study was carried out to radiologically analyse the whole b...

journal_title：Journal of fish biology

authors： Ceballos-Francisco D,Carrillo NG,Pardo-Fernández FJ,Cuesta A,Esteban MÁ

更新日期：2020-11-01 00:00:00

abstract：:Metabolic rate is a critical factor in animal biology and ecology, providing an objective measure that can be used in attributing a cost to different activities and to assessing what animals do against some optimal behaviour. Ideally, metabolic rate would be estimated directly by measuring heat output but, until recen...

journal_title：Journal of fish biology

authors： Metcalfe JD,Wright S,Tudorache C,Wilson RP

更新日期：2016-01-01 00:00:00

abstract：:The present study analyses whale shark Rhincodon typus stranding in the Gulf of California, Mexico, reported by the public, scientists, authorities and artisanal fishermen. A total of 14 strandings were documented during the period 2001-2018. The total length of R. typus ranged from 350-1,102 cm, with a sex ratio of 3...

journal_title：Journal of fish biology

authors： Whitehead DA,Becerril-García EE,Petatán-Ramírez D,Vázquez-Haikin A,González-Armas R,Galván-Magaña F

更新日期：2019-01-01 00:00:00

abstract：:Baltic cod Gadus morhua otoliths marked with oxytetracycline (OTC) in 1974-1975 had been sectioned and the sections stored in paper envelopes at room temperature in dry, dark conditions. After 40 years of storage, the historic OTC marks were still clearly visible showing that OTC is suitable for long-term chemical mar...

journal_title：Journal of fish biology

authors： Krumme U,Bingel F

更新日期：2016-10-01 00:00:00

abstract：:As far as is known, in this paper the first case of lacking of skin-related structures (epidermis, stratum laxum, dermal denticles and teeth) in a free-swimming elasmobranch, the blackmouth catshark, Galeus melastomus, is reported. The individual was caught by trawl in Sardinian waters (central-western Mediterranean) ...

journal_title：Journal of fish biology

authors： Mulas A,Bellodi A,Porcu C,Cau A,Coluccia E,Demurtas R,Marongiu MF,Pesci P,Follesa MC

更新日期：2020-10-01 00:00:00

abstract：:The anabantoids are a group of c. 137 species of air-breathing freshwater fishes found in Africa and southern Asia. All anabantoids have a pair of suprabranchial chambers that each house an air-breathing organ known as the labyrinth apparatus: a complex bony structure lined with thin, highly vascularised respiratory e...

journal_title：Journal of fish biology

authors： Tate M,McGoran RE,White CR,Portugal SJ

更新日期：2017-09-01 00:00:00

abstract：:Laser photogrammetry was found to be a promising new cost-effective technique for measuring free-swimming whale sharks Rhincodon typus. Photogrammetric measurements were more precise than visual size estimates by experienced researchers, with results from the two methods differing by 9· 8 ± 1· 1% (mean ±s.e.). A new m...

journal_title：Journal of fish biology

authors： Rohner CA,Richardson AJ,Marshall AD,Weeks SJ,Pierce SJ

更新日期：2011-01-01 00:00:00

abstract：:The Mekong Delta is host to a large number of freshwater species, including a unique group of facultative air-breathing Anabantiforms. Of these, the striped snakehead (Channa striata), the climbing perch (Anabas testudineus), the giant gourami (Osphronemus goramy) and the snakeskin gourami (Trichogaster pectoralis) ar...

journal_title：Journal of fish biology

authors： Goodrich HR,Bayley M,Birgersson L,Davison WG,Johannsson OE,Kim AB,Le My P,Tinh TH,Thanh PN,Thanh HDT,Wood CM

更新日期：2020-04-01 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：: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：:This study has determined the extents and basis for variations in the composition of the prey ingested by the abundant species of a family highly adapted for ambush predation, i.e. Platycephalidae, in a region (south-western Australia) where that family is found in different habitats and environments. Dietary data wer...

journal_title：Journal of fish biology

authors： Coulson PG,Platell ME,Clarke KR,Potter IC

更新日期：2015-03-01 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：: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：:Introduced predatory fishes have had consistently severe consequences for native fishes in stream environments around the world, although the drivers of these effects are often unclear. In the Swartkops River headwaters in South Africa, native Eastern Cape redfin Pseudobarbus afer were always absent from sites occupie...

journal_title：Journal of fish biology

authors： Ellender BR,Weyl OLF,Alexander ME,Luger AM,Nagelkerke LAJ,Woodford DJ

更新日期：2018-04-01 00:00:00

abstract：:In this study, the complementary DNA (cDNA) of Japanese pufferfish Takifugu rubripes tumour necrosis factor-related apoptosis-inducing ligand (TRAIL) was cloned by reverse-transcription PCR. The open reading frame of the TRAIL consisted of 870 bases. The deduced amino-acid sequence of the TRAIL showed a high homology ...

journal_title：Journal of fish biology

authors： Li JF,Ai HX,Zhang J,Du MX,Zhang Z,Zhang JX,Zhang SQ

更新日期：2011-09-01 00:00:00

abstract：:Corals create complex reef structures that provide both habitat and food for many fish species. Because of numerous natural and anthropogenic threats, many coral reefs are currently being degraded, endangering the fish assemblages they support. Coral reef restoration, an active ecological management tool, may help rev...

journal_title：Journal of fish biology

authors： Seraphim MJ,Sloman KA,Alexander ME,Janetski N,Jompa J,Ambo-Rappe R,Snellgrove D,Mars F,Harborne AR

更新日期：2020-09-01 00:00:00

abstract：:An experiment quantified the effect of food ration and spawning number on the breeding season reproductive performance of batch-spawning, female three-spined sticklebacks Gasterosteus aculeatus. Individually housed females were maintained on fixed rations of 2, 4, 8 or 16% of their initial postspawning mass of live en...

journal_title：Journal of fish biology

authors： Wootton RJ,Fletcher DA

更新日期：2009-08-01 00:00:00

abstract：:The tench Tinca tinca is a freshwater species with human-mediated translocations, aquaculture interest and limited information on its genetic structure. mtDNA sequencing analysis of control region and two genes in 50 individuals from five European populations identified two phylogroups, with greater variability than t...

journal_title：Journal of fish biology

authors： Karaiskou N,Gkagkavouzis K,Minoudi S,Botskaris D,Markou K,Kalafatakis S,Antonopoulou E,Triantafyllidis A

更新日期：2020-09-01 00:00:00

abstract：:Energy densities of 670 fishes belonging to nine species were measured to evaluate intraspecific variability. Functional groups based on energy density appeared to be sufficiently robust to individual variability to provide a classification of forage fish quality applicable in a variety of ecological fields including ...

journal_title：Journal of fish biology

authors： Spitz J,Jouma'a J

更新日期：2013-06-01 00:00:00

abstract：:Based on existing laboratory research on the visual physiology of walleye Sander vitreus, we tested colours of known spectral sensitivity (i.e., green and orange) using constant and strobing (5 Hz) illumination with an LED-based light guidance device (LGD). Hatchery-reared age 0 and 2 years S. vitreus were exposed to ...

journal_title：Journal of fish biology

authors： Ford MI,Elvidge CK,Patrick PH,Sills M,Cooke SJ

更新日期：2019-11-01 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：:The effect of obstructions in steady flow on swimming by rainbow trout Oncorhynchus mykiss was examined in a respirometry swim tunnel to test the prediction that fish interacting with obstructions require less energy to hold station. When an obstruction was present, O. mykiss altered the kinematics of swimming and the...

journal_title：Journal of fish biology

authors： Cook CL,Coughlin DJ

更新日期：2010-11-01 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：: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：: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：:Adult chum salmon Oncorhynchus keta homing behaviour in a two-choice test tank (Y-maze) was monitored using a passive integrated transponder (PIT)-tag system in response to river-specific dissolved free amino-acid (DFAA) profiles and revealed that the majority of O. keta showed a preference for artificial natal-stream...

journal_title：Journal of fish biology

authors： Chen EY,Leonard JBK,Ueda H

更新日期：2017-04-01 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：:The swimming behaviour of coral-reef fish larvae from 20 species of 10 different families was tested under natural and artificial sound conditions. Underwater sounds from reef habitats (barrier reef, fringing reef and mangrove) as well as a white noise were broadcasted in a choice chamber experiment. Sixteen of the 20...

journal_title：Journal of fish biology

authors： Parmentier E,Berten L,Rigo P,Aubrun F,Nedelec SL,Simpson SD,Lecchini D

更新日期：2015-05-01 00:00:00

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：:The study of digestive enzymes activity at Salmo caspius fry showed that enzymes were available at the moment of mouth opening on the first day post hatching (dph) and the activity of enzymes showed no significant difference from the hatching day 28 dph. An increased activity was seen between 32 and 43 dph and this ac...

journal_title：Journal of fish biology

authors： Zamani A,Hajimoradloo A,Madani R,Farhangi M

更新日期：2009-09-01 00:00:00