%0 Journal Article %A SHU Feng-yue** %A ZHANG Cheng-de %A ZHANG Chao %A DONG Long-xiang %A GAO Ran %A FAN Xi-ying %T Community structure of macrozoobenthos and bioassessment of water quality in Lake Nansi. %D 2014 %R %J Chinese Journal of Ecology %P 184-189 %V 33 %N 1 %X A seasonal investigation of macrozoobenthos in Lake Nansi was carried out during April to December, 2010. Altogether 36 benthic taxa, including 5 annelids, 10 molluscs, 15 arthropods, and 6 other animals, were identified. Among them, Limnodrilus hoffmeisteri, Bellamya purificata, Alocinma longicornis and Propsilocerusi akamusi were dominant, accounting for 88.1% of the total number. Density and biomass of macrozoobenthos were 1119 ind·m-2 and 83.23 g·m-2, respectively. Species richness, dominant species and standing crops varied significantly in different seasons, and also in different areas. Water quality was assessed using Shannon index, Margalef index and Hilsenhoff biotic index. It was shown that Lake Nansi was moderately polluted in general during the sampling period; water quality in spring and winter was slightly better than that in summer and autumn. In terms of the four lake regions, Lake Nanyang and Lake Zhaoyang were heavily polluted, Lake Dushan was moderately to heavily polluted, and Lake Weishan was
moderately polluted. %U http://www.cje.net.cn/EN/abstract/article_21282.shtml