An approach to evaluating the acute toxicity of nitrofurazone on community functioning using protozoan periphytons
2021
Uroosa, | Kazmi, Syed Shabi Ul Hassan | Zhong, Xiaoxiao | Xu, Henglong
The acute toxicity of nitrofurazone on community functioning was studied using an acute toxicity test. Consequently, 14-day protozoan periphyton assemblages were used as test organism communities, under a range of nitrofurazone concentrations including 0 (control), 0.5, 3, 6, and 12 mg ml⁻¹ within 0, 2, 4, 6, 8, 10, and 12 h time duration. Fuzzy coding system of functional traits classified the test protozoan periphyton community into six major traits and 15 categories. Briefly, community-weighted means (CWM) were used to identify the community functioning of test protozoan assemblage. Inferences demonstrate a drastic/significant variation in the functional patterns of the test organisms at a high concentration (12 mg ml⁻¹) after an exposure time of 12 h, but the functional diversity indices leveled off at the exposure time of 10 h and then dropped sharply. These results suggested that nitrofurazone may significantly influence the community functioning in marine ecosystems.
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