organ distribution and bioaccumulation of microcystins in freshwater fish at different trophic levels from the eutrophic lake chaohu, china.this article reports the organ distribution and bioaccumulation of hepatotoxic microcystins (mcs) in freshwater fishes at different trophic levels from the large, shallow, eutrophic lake chaohu in september 2003, when there were heavy surface blooms of toxic cyanobacteria. among all fish, intestines and blood had the highest average content of mc-rr + mc-lr (22.0 and 14.5 microg g(-1) dw, respectively), followed by liver, bile, and kidney (7.77, 6.32, and 5.81 microg g(-1) dw, respectively), whe ...200515892067
effect of temperature on hypoxia tolerance and its underlying biochemical mechanism in two juvenile cyprinids exhibiting distinct hypoxia is increasingly important to investigate the effect of temperature on hypoxia tolerance in fish species, as worldwide hypoxia worsens with increases in global warming. we selected the hypoxia-tolerant crucian carp (carassius carassius) and the hypoxia-sensitive chinese bream (parabramis pekinensis) as model fish and investigated their hypoxia tolerance based on the critical oxygen tension of the routine metabolic rate (m˙o2rout) (pcrit), aquatic surface respiration (asrcrit) and loss of equil ...201524853206
the effects of constant and diel-fluctuating temperature acclimation on the thermal tolerance, swimming capacity, specific dynamic action and growth performance of juvenile chinese bream.we investigated the effects of constant and diel-fluctuating temperature acclimation on the thermal tolerance, swimming capacity, specific dynamic action (sda) and growth performance of juvenile chinese bream (parabramis pekinensis). the critical thermal maxima (ctmax), critical thermal minima (ctmin), lethal thermal maxima (ltmax), lethal thermal minima (ltmin), critical swimming speed (ucrit) and fast-start escape response after 30 d acclimation to three constant temperatures (15, 20 and 25 °c ...201425026540
design and application of a solar mobile pond aquaculture water quality-regulation machine based in bream pond aquaculture.bream pond aquaculture plays a very important role in china's aquaculture industry and is the main source of aquatic products. to regulate and control pond water quality and sediment, a movable solar pond aquaculture water quality regulation machine (smwm) was designed and used. this machine is solar-powered and moves on water, and its primary components are a solar power supply device, a sediment lifting device, a mechanism for walking on the water's surface and a control system. the solar powe ...201626789004
a comparison of constant acceleration swimming speeds when acceleration rates are different with critical swimming speeds in chinese bream under two oxygen investigate the effect of acceleration rates on the constant acceleration test speed (u cat) and to compare u cat with the critical swimming speed (u crit) in chinese bream (parabramis pekinensis), the u cat test at acceleration rates of 0.05, 0.1, 0.2, 0.4 and 0.8 cm s(-2) and the u crit test in juvenile fish at 20 °c in either normoxia (>90 % saturation oxygen tension) or hypoxia (30 % saturation) were compared. the lactate concentration ([lactate]) of white muscle, liver and plasma and the ...201627147426
mitochondrial genome variation after hybridization and differences in the first and second generation hybrids of bream fishes.hybridization plays an important role in fish breeding. bream fishes contribute a lot to aquaculture in china due to their economically valuable characteristics and the present study included five bream species, megalobrama amblycephala, megalobrama skolkovii, megalobrama pellegrini, megalobrama terminalis and parabramis pekinensis. as maternal inheritance of mitochondrial genome (mitogenome) involves species specific regulation, we aimed to investigate in which way the inheritance of mitogenome ...201627391325
genetic manipulations in aquaculture: a review of stock improvement by classical and modern technologies.the aim of this review was to highlight the extent to which the genetic technologies are implemented by the aquaculture industry. the review shows that some of the modern genetic technologies are already extensively applied by the diverse aquaculture industries, though not to the same extent for all important aquacultured species (according to fao 1998 figures). some species (common carp, atlantic salmon, rainbow trout, channel catfish, nile tilapia, and the pacific oyster) received concentrated ...200111841164
microcystin bioaccumulation in freshwater fish at different trophic levels from the eutrophic lake chaohu, china.the spatial and temporal variations of microcystins (mcs) in fishes with different trophic levels were studied monthly in lake chaohu in 2014. mcs content in muscle was highest in phytoplanktivorous hypophthalmichthys molitrix (h. molitrix), followed by omnivorous carassius auratus (c. auratus), and was lowest in herbivorous parabramis pekinensis (p. pekinensis) and carnivorous coilia ectenes (c. ectenes). mcs concentration in liver was highest in c. auratus, followed by h. molitrix, and was low ...201728213674
polychlorinated dibenzo-p-dioxins/furans and polychlorinated biphenyls in fresh fishes from qiantangjiang river, china.muscles of two species of fish collected in qiangtangjiang river were analyzed for polychlorinated dibenzo-p-dioxins/dibenzofurans (pcdd/fs) and polychlorinated biphenyls (pcbs) by high resolution gas chromatography/high resolution mass spectrometry (hrgc/hrms). average concentrations of total pcdd/fs in crucian carp and white amur bream were 1.14-7.88 pg g(-1)ww and 1.02-8.18 pg g(-1)ww respectively. corresponding values for pcbs were 469.36-10972 pg g(-1)ww and 364.79-4948.0 pg g(-1)ww. averag ...200717275884
accumulation behavior and risk assessment of heavy metals and arsenic in tissues of white bream (parabramis pekinensis) from the xiang river, southern china.aquatic environment suffered from serious heavy metal and as pollutions due to rapid industrialization and urbanization in the last decades. in order to evaluate the heavy metal and as contamination in aquatic organism in southern china, the levels of as, cd, co, cr, cu, fe, mn, pb, and zn in muscle, gill, and liver of white bream (parabramis pekinensis) collected from xiang river were analyzed. the statistically significant differences of the analyzed element concentration (wet weight) between ...201627677994
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