Abstract：
:Sturgeon spermatozoa are unique for their sustained motility. We investigated the relative importance of bioenergetic pathways in the energy supply of Siberian sturgeon Acipenser baerii spermatozoa during motile and immotile states. Spermatozoon motility and oxygen consumption rate (OCR) were analysed following exposure to inhibitors of oxidative phosphorylation (sodium azide, NaN3 ), glycolysis (2-deoxy-D-glucose, DOG) and β-oxidation of fatty acids (sodium fluoride, NaF), and to an uncoupler of oxidative phosphorylation (carbonyl cyanide m-chlorophenyl hydrazine, CCCP). No significant difference in curvilinear velocity was observed after addition of these reagents to activation medium (AM) or nonactivation medium (NAM) for incubation. Incubation of spermatozoa in NAM containing CCCP or NaN3 resulted in significantly decreased motility duration compared to controls. The OCR of sturgeon spermatozoa in AM (11.9 ± 1.4 nmol O2 min-1 (109 spz)-1 ) was significantly higher than in NAM (8.2 ± 1.5 nmol O2 min-1 (109 spz)-1 ). The OCR significantly declined with addition of NaN3 to AM and NAM. No significant difference in motility parameters or OCR was observed with NaF or DOG. These results suggest active oxidative phosphorylation in both immotile and motile spermatozoa. Nevertheless, mitochondrial respiration occurring during motility is not sufficient to meet the high energy demands, and the energy required for sustained motility of Siberian sturgeon spermatozoa is derived from adenosine triphosphate accumulated during the quiescent state.
journal_name
J Fish Bioljournal_title
Journal of fish biologyauthors
Rahi D,Dzyuba B,Xin M,Cheng Y,Dzyuba Vdoi
10.1111/jfb.14382subject
Has Abstractpub_date
2020-08-01 00:00:00pages
435-443issue
2eissn
0022-1112issn
1095-8649journal_volume
97pub_type
杂志文章abstract：:The Portuguese dogfish Centroscymnus coelolepis is a wide-ranging deep-water shark and a common by-catch component of the catches of several mid- to deep-water fisheries. In the present study, two new records from the south-western Atlantic Ocean are reported based on specimens caught by bottom-longline fishing vessel...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14246
更新日期：2020-03-01 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
pub_type： 杂志文章
doi：10.1111/jfb.12382
更新日期：2014-07-01 00:00:00
abstract：:Physiological colour change was investigated in the blackspotted rockskipper Entomacrodus striatus in Moorea, French Polynesia. Fish colour cycled with significant autocorrelation over the 30 min observation period and was not affected by observation temperature (27 and 31 degrees C). Cycling depended most on dark and...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2009.02200.x
更新日期：2009-05-01 00:00:00
abstract：:This paper highlights possible effects of physical and chemical mechanisms of formalin fixation and preservation on biological tissue and reviews the consequent potential inaccuracies on estimates of body mass of small fishes fixed and preserved in formalin. Twenty-six papers including 65 independent experiments with ...
journal_title：Journal of fish biology
pub_type： 杂志文章,评审
doi：10.1111/jfb.14146
更新日期：2020-02-01 00:00:00
abstract：:The distribution limits in the Atlantic of Callorhinchus callorynchus (Callorhinchidae) and Odontesthes argentinensis (Atherinopsidae) are extended northwards to 22° 22' S and 22° 31' S, respectively, whereas that of Lile piquitinga (Clupeidae) is extended southwards to 22° 22' S. Their occurrence in the north of Rio ...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2011.03035.x
更新日期：2011-08-01 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
pub_type： 杂志文章
doi：10.1111/jfb.12111
更新日期：2013-06-01 00:00:00
abstract：:Monitoring freshwater fish communities in a large human-impacted river is a challenging task. The structure of fish assemblages has been monitored yearly in the Marne and the Seine Rivers, across the Paris conurbation, France, using traditional electrofishing (EF) surveys since 1990, in accordance with the European Wa...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14383
更新日期：2020-08-01 00:00:00
abstract：:Deania calcea (n = 420) were collected from the catch of deep-water trawlers in the southern and eastern scalefish and shark fishery in southern Australia during the years 2008-2011. The total length (LT ) range varied between sexes, females being larger (n = 264; 280-1530 mm) than males (n = 156; 310-921 mm). The rep...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.12756
更新日期：2015-09-01 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
pub_type： 杂志文章
doi：10.1111/jfb.13329
更新日期：2017-07-01 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
pub_type： 杂志文章
doi：10.1111/jfb.14669
更新日期：2021-01-07 00:00:00
abstract：:A multidisciplinary study was made of brown trout Salmo trutta in the Borne River, a typical fast-flowing mountain stream in the Northern French Alps, in the geographical range of the Mediterranean lineages (ML). Information on (1) the proportion of stocked fluoro-marked fish in the angling harvest, (2) the introgress...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2008.02168.x
更新日期：2009-04-01 00:00:00
abstract：:Understanding the spatial and environmental variation in demographic processes of fisheries target species, such as coral grouper (Genus: Plectropomus), is important for establishing effective management and conservation strategies. Herein we compare the demography of Plectropomus leopardus and P. laevis between Austr...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14491
更新日期：2020-10-01 00:00:00
abstract：:Potamotrygon marquesi, sp. nov., is described and compared with other species of Potamotrygon occurring in the Amazon Basin. The identity of this new species is supported by an extensive external and internal morphological study including coloration pattern, squamation, skeleton and ventral lateral-line canals. Morpho...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14050
更新日期：2019-08-01 00:00:00
abstract：:A survey of soft sediment tide pools was conducted to assess the occupation and assemblage of fishes on three different intertidal shores in Moreton Bay, Australia, between January and December 2009. Tide-pool volume ranged from 0· 30 to 29· 75 l and varied significantly between months and sites. A total of 1364 indiv...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2010.02866.x
更新日期：2011-02-01 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
pub_type： 杂志文章
doi：10.1111/jfb.13963
更新日期：2019-06-01 00:00:00
abstract：:An analysis of 107 individuals of Atlantic hookear sculpin Artediellus atlanticus from the Barents Sea-Svalbard region and from north-east Greenland shows that the state of the parietal spines, although not randomly distributed geographically, occurs sympatrically. They do not diagnostically describe populations. They...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2012.03484.x
更新日期：2013-01-01 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
pub_type： 杂志文章
doi：10.1111/jfb.12566
更新日期：2015-02-01 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
pub_type： 杂志文章
doi：10.1111/jfb.13868
更新日期：2019-01-01 00:00:00
abstract：:The diets of 21 terapontid species from freshwater environments in northern Australia were investigated to determine the similarity and dissimilarity among species and the extent of any ontogenetic shifts. Distinct ontogenetic dietary shifts occurred in all species for which sufficient data were available, with many s...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2010.02862.x
更新日期：2011-01-01 00:00:00
abstract：:The aim of this study was to monitor erythrocyte nuclear abnormalities (NA) including micronuclei (MN) in cultured and wild sea bass Dicentrarchus labrax and wild mullet Mugil spp. Seasonal sampling was performed at seven locations along the eastern coast of the Adriatic Sea. The frequency of NA and MN was positively ...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2009.02232.x
更新日期：2009-07-01 00:00:00
abstract：:Availability of shelter is an important component of habitat selection for animals as it can influence survival (protection against harsh physical conditions and predation) and growth (energy acquisition and expenditure). Few studies address the effect of shelter on metabolic expenditures associated with non-mechanica...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14653
更新日期：2020-12-20 00:00:00
abstract：:Data on low dissolved oxygen (DO₂) tolerance of freshwater fish species of north-western Europe were used to create species sensitivity distributions (SSD). Lowest observed effect concentrations (LOEC) and 100% lethal concentrations (LC₁₀₀) data were collected from the scientific literature. Comparisons were made amon...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.12167
更新日期：2013-07-01 00:00:00
abstract：:Turbot, Scophthalmus maximus, is a commercially important demersal flatfish species distributed throughout the Black Sea. Several studies performed locally with a limited number of specimens using both mitochondrial DNA (mtDNA) and microsatellite markers evidenced notable genetic variation among populations. However, ...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14487
更新日期：2020-10-01 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
pub_type： 杂志文章
doi：10.1111/jfb.13593
更新日期：2018-05-01 00:00:00
abstract：:The critically endangered smalltooth sawfish Pristis pectinata reproduces biennially in central west Florida, U.S.A. Here we demonstrate that smalltooth sawfish are physiologically capable of reproducing annually in a captive environment. The smalltooth sawfish are held in an open system, with abiotic conditions that ...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.14523
更新日期：2020-11-01 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
pub_type： 杂志文章
doi：10.1111/jfb.14455
更新日期：2020-11-01 00:00:00
abstract：:Neoheterobothrium hirame a haematophagous monogenean parasite on Japanese flounder Paralichthys olivaceus occurred at high prevalences (> 70%) from 1999 to 2002 but thereafter declined and remained low (< 20%) from 2003 to 2005 in the Joban area, Japan. In 2006, N. hirame became abundant again reaching a prevalence of...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2009.02278.x
更新日期：2009-07-01 00:00:00
abstract：:In this study, 1429 fishes of 18 different species (12 native and six exotic) were sampled from 29 localities to compare the levels of parasitism between native and exotic fish species and to examine the relationship between environmental degradation and parasite diversity. Forty-four putative species of parasites wer...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/j.1095-8649.2010.02615.x
更新日期：2010-05-01 00:00:00
abstract：:This study provides direct and indirect evidence of temporally and spatially consistent spawning aggregations for the grouper Mycteroperca olfax. Recently reported declines in population numbers, probably related to the direct targeting of aggregations by artisanal fishermen, highlight the urgent need for species-spec...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.12703
更新日期：2015-07-01 00:00:00
abstract：:After 80 years of misidentifications, the analysis of the holotype of Corydoras arcuatus plus several non-type specimens attributed to this species allowed its recognition and also revealed a new species, both sharing the following diagnostic features: a long, arched, continuous black stripe that runs parallel to the ...
journal_title：Journal of fish biology
pub_type： 杂志文章
doi：10.1111/jfb.13980
更新日期：2019-08-01 00:00:00
