河蚬在我国沉积物毒性评价与鉴定中的应用研究
Corbicula fluminea in Sediment Toxicity Evaluation and Identification Studies in China
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摘要: 河蚬作为原产并广泛分布于我国及东南亚的双壳类淡水软体动物,是我国众多水域的底栖优势种。河蚬对水体污染物具有较强累积能力,已成功用于水体沉积物生物富集及生物毒性效应研究。但应用于沉积物毒性鉴别评估(TIE)研究整体上仍处于起步阶段,尚未形成一套标准指标测定方法和技术体系。为此,本研究在调查底栖生物在我国沉积物毒性研究的基础上,以河蚬为主要研究对象,探讨其在我国生态分布等生物学背景,系统分析其对重金属和有机污染物的生物富集特征以及相关生物毒性效应方面的研究进展,以期为河蚬作为我国特色的沉积物毒性鉴别评估(TIE)受试生物提供参考依据。Abstract: The freshwater bivalve Corbicula fluminea is native to Southeast Asia and China. As a benthonic dominant species, C. fluminea has strong capacity to accumulate pollutants and has been successfully used in the study on the bioaccumulation and biological toxic effects of multi-pollutants in sediments. However, the determination method and technology system for C. fluminea used in identification and evaluation (TIE) of sediment tocxicity are still in a primary stage. Therefore, based on the investigation of the benthic organisms in sediment toxicity in previous studies, this paper firstly investigated the ecological distribution and other background information of Corbicula fluminea and then analyzed the development in bioaccumulation characteristics and biological toxic effects. The purpose of this study is to develop Corbicula fluminea as a characteristic benthonic species in sediment toxicology identification and evaluation in China.
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Key words:
- Corbicula fluminea /
- benthic organisms /
- bioaccumulation /
- biological toxic effects /
- sediment
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