Pyrethroid bioaccumulation in wild fish linked to geographic distribution and feeding habit

文献类型： 外文期刊

第一作者： Xie, Wenping

作者： Xie, Wenping;Zhu, Xinping;Zhao, Jiangang;Chen, Shanshan;Yang, Xunan

作者机构：

关键词： Pyrethroid; Bioaccumulation; Wild fish; Feeding habit; Fish organ

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：14.224； 五年影响因子：12.984 ）

ISSN： 0304-3894

年卷期： 2022 年 430 卷

页码：

收录情况： SCI

摘要： The accumulation of pyrethroid insecticides in aquatic food webs has attracted increased research attention. Fish are key species in aquatic food webs, directly connecting invertebrates and human consumption. However, little is known about the bioaccumulation of pyrethroids in wild fish species. In this study, 19 species of wild fish were collected from 11 sites in the Pearl River, China, and the levels of seven pyrethroids in the fish were determined. Linear mixed-effects models were applied to estimate the means of pyrethroid concentrations, in which sample site and fish species were set as random effects. The concentrations of Sigma(7) pyrethroids in fish ranged from 4.99 to 50.82 ng/g. Permethrin and bifenthrin were present at the highest concentration (8.89 +/- 1.47 ng/g) and fre-quency (100%) in fish muscle, respectively. The composition patterns of pyrethroids varied in fish organs. Fish species contributed a higher proportion of the variance than geographic distribution (28.6% vs. 26.4%). The pyrethroids in carnivorous fish (23.5 +/- 2.9 ng/g) were significantly higher than in omnivorous (14.6 +/- 1.9 ng/g) and phytophagous fish (16.0 +/- 4.7 ng/g). To our knowledge, this is the first report examining the effect of feeding habits on pyrethroid bioaccumulation in wild fish. The results can provide evidence for the risk of py-rethroid pollution in aquatic ecosystems.

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