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Comparison on Changes of Planktonic Community Structure and Diversity in Greenhouse-raised Chinese Soft Shelled Turtles in Hot Season After Wastewater Treatment Between Jiangsu and Anhui Provinces
ZHENGYao, LIUTingyan, XUGangchun
Chin Agric Sci Bull ›› 2026, Vol. 42 ›› Issue (21) : 207-218.
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Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
PDF(10335 KB)
Comparison on Changes of Planktonic Community Structure and Diversity in Greenhouse-raised Chinese Soft Shelled Turtles in Hot Season After Wastewater Treatment Between Jiangsu and Anhui Provinces
To monitor the changes of water quality after wastewater treatment and screen evaluation indicators for wastewater treatment effectiveness in the hot season, water samples of Chinese soft shelled turtle breeding greenhouses from Dantu of Jiangsu and Xiejiaji of Anhui were used as research objects, and the study was conducted from June to October 2022. The water quality was tracked and monitored, and the dominant functional groups of phytoplankton and post planktonic animals were used to evaluate the health status of aquatic ecosystems. The results showed that the tail-water treatment system had a good effect on the CODMn of the Dantu greenhouse group and the TN, NH3-N, and CODMn of the Xiejiaji greenhouse group (but caused high TP). Although it improved water quality, it was still classified as Class V water before and after treatment. The number of phytoplankton species in the two greenhouse groups was 46 and 39, respectively (with 16 functional groups). The species, functional group density, and biomass of phytoplankton in the Dantu greenhouse group were higher than those in the Xiejiaji greenhouse group. The Shannon Wiener diversity index, Margalef richness index, and Pielou evenness index were opposite. The dominant functional groups were the M+MP functional group, which represented eutrophic/ultra eutrophic water bodies, replaced by the widely adaptable Lo functional group and the J functional group of eutrophic water bodies. The significant environmental impact factors of the two greenhouse groups were TN, CODMn and TP, respectively. The numbers of planktonic animal species in the two greenhouse groups were 51 and 76. The main dominant species of metazoan planktonic animals in two groups were rotifers, branchiopods, and copepods. The significant environmental factors related to the dominant functional groups of metazoan planktonic animals in the Xiejiaji greenhouse group were TSS and CODMn. The average humic index of the two groups of rotifers was 2.5 and 1.9. The community structure of phytoplankton and post planktonic animals can be used as water ecological health evaluation indicators for pond effluent treatment.
phytoplankton / metazoan zooplankton / functional group / environmental factors
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