research

Mechanistic study on mercury or cadmium toxicity in marine copepod Tigriopus japonicus under multigenerational exposure

Abstract

如今,海洋重金属污染已是最严峻的环境问题之一,会对海洋生态系统乃至人类造成巨大的危害,其中汞和镉是最有代表性的重金属,两者即使在低剂量下也会对海洋生物产生较高的毒性效应,而且会在生物体内累积并在食物链传递过程中有生物放大现象,最终威胁人类健康和生命安全。海洋桡足类日本虎斑猛水蚤(Tigriopusjaponicus),因其广泛的地理分布、相对短的世代周期、高的繁殖力、易于区分的雌雄形态及在海洋环境中重要的生态位等,已成为海洋生态毒理学研究的重要模式生物。因此本论文选取日本虎斑猛水蚤作为受试生物,研究长期多个世代暴露和恢复下汞或镉在该桡足类体内的累积状况及其对该动物6个重要生活参数(如存活率、无...By now, marine metal pollution has been one of the most serious environmental problems, and it potentially causes a great threat to marine ecosystem and even humans. Mercury and cadmium, as the mostly representative metals, result in severe toxicity to marine organisms, even at a low dose. Particularly, these two metals are able to accumulate in marine biota and biomagnify along the food chain tra...学位:理学硕士院系专业:环境与生态学院_环境科学学号:3332013115173

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