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首页> 外文期刊>Environmental toxicology and chemistry >Behavioral, Physiological, And Cellular Responses Following Trophic Transfer Of Toxic Monoaromatic Hydrocarbons
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Behavioral, Physiological, And Cellular Responses Following Trophic Transfer Of Toxic Monoaromatic Hydrocarbons

机译:营养性转移有毒单芳烃后的行为,生理和细胞反应

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The trophic transfer of monoaromatic hydrocarbons to predatory organisms feeding upon contaminated marine animals is not well reported within the scientific literature. Branched alkylbenzenes (BABs) unresolved by gas chromatography have been reported to be principal toxic components of bioaccumulated hydrocarbons in the tissues of some wild mussel, Mytilus edulis, populations with poor health status. Mussels, M. edulis, contaminated with a commercial mixture of BABs were fed to shore crabs, Carcinus maenas, for 7 d, and effects upon the behavior, heart rate, hemolymph cellular viability, and immune response of the crabs were assessed. Accumulation of BABs in crab midgut gland tissue was quantified by gas chromatography-mass spectrometry, and the presence of BABs in crab urine was detected spectrophotometrically using ultraviolet fluorescence spectroscopy. Analysis of crab tissues and urine revealed a proportion of the BABs was transferred from the mussel tissues to the crabs, but the majority was not present 3 d after consumption of the mussels and may have been metabolized, excreted, or both. The results do not support the hypothesis that BABs are likely to be biomagnified, at least by crabs, in the marine environment. Alterations to measured cellular and physiological responses of crabs fed BAB-exposed mussels were not significant. Consumption of contaminated mussels was shown to cause highly significant abnormal behavior that, in the wild, may affect the feeding ability of crabs and make them more vulnerable to predation.
机译:在科学文献中,没有很好地报道单芳烃向营养性海洋生物的营养转移,这种生物以受污染的海洋动物为食。据报导,气相色谱法无法解析的支链烷基苯(BABs)是一些野生贻贝,Mytilus edulis,健康状况较差的人群的组织中生物积累烃的主要毒性成分。将被商业化的BAB混合物污染的贻贝(M. edulis)喂食岸蟹Carcinus maenas,持续7天,并评估其对行为,心率,血淋巴细胞活力和免疫反应的影响。用气相色谱-质谱法对蟹中肠腺组织中BABs的积累进行定量,并用紫外荧光光谱法分光光度法检测蟹尿中BABs的存在。螃蟹组织和尿液的分析显示,一部分BAB从贻贝组织转移到了螃蟹,但是在食用贻贝3天后,大多数BAB都不存在,并且可能已被代谢,排泄或两者兼而有之。结果不支持这样的假设,即在海洋环境中,BAB可能至少被螃蟹生物放大了。喂食暴露于BAB的贻贝的蟹对测量的细胞和生理反应的改变并不显着。事实证明,食用受污染的贻贝会导致非常严重的异常行为,这种行为在野外可能会影响螃蟹的摄食能力,并使它们更容易被捕食。

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