Acute toxicity effects of suspended solids stress on Fenneropenaeus chinensis larvae

Abstract:

With the development of marine resources in coastal areas, marine engineering affects the growth and development of marine animals. Acute toxicity of suspended solids with different concentrations on Fenneropenaeus chinensis larvae was evaluated by the semi-static method. The results showed that high concentrations of suspended solids inhibited the swimming ability of Fenneropenaeus chinensis larvae. The 48 h-LC50 and 96 h-LC50 values of suspended solids to suspension was 452.21 mg/L and 183.7 mg/L, respectively, and the safe concentration was 18.37 mg/L. The microscopic examination showed that the Fenneropenaeus chinensis larvae body surface sediment had a large quantity of suspended particulate matter in the gills. This study provides a theoretical foundation for an understanding of the toxic effects of suspended solids on marine animals.