海洋科学Issue(10)：104-110,7.
东太湖不同水域浮游生物周年变化及鲢、鳙食性的研究
Annual variation of plankton in different water area of the East Taihu Lake and feeding habits of Hypophalmichthy mo-litrix and Aristichthys nobilis
摘要
Abstract
The composition, quantity of the plankton and the density of aquatic plant in different water area of the East Taihu Lake were investigated from February to November in 2012, and the feeding habits of Hypophalmichthy molitrix and Aristichthys nobilis in September in the Taihu Lake were studied. The results showed that the order of phytoplankton and zooplankton’s diversity index in four water areas was Protection Zone>Yushan>Mouse Moun-tain>Manshandao. The order of quantity of plankton and trophic lever index in the four water areas was Manshan-dao>Mouse Mountain>Yushan>Protection Zone. The total quantity of phytoplankton had a positive correlation with the total quantity of cyanobacteria. The total quantity of zooplankton and the eutrophication factors, however, has a negative correlation with the aquatic plant density. In September, the percentages of the phytoplankton and zoo-plankton in total fed quantity contained in the intestinal of H. molitrix or A. nobilis in the Taihu Lake were 89.1%or 70.6% and 10.9% or 29.4%, respectively, and the percentage of cyanobacteria was 74.5% or 56%, and that of cladocerans and rotifers were 3.7%or 13.4%and 1.5%or 11.5%, respectively. The selective index of cyanobacteria for H. molitrix or A. nobilis was 1.42 or 1.07, and that of cladocerans and rotifers was 0.13 or 1.27 and 1.3 or 0.4, respectively. The results of this study have theoretical value and great significance to reveal the effect of environ-mental factors on annual variation of plankton and to control cyanobacteria through H. molitrix and A.nobilis in the Taihu Lake.关键词
东太湖/浮游生物/多样性/食性Key words
the East Taihu Lake/plankton/diversity/feeding habits分类
生物科学引用本文复制引用
李倩倩,黄鹤忠,张群英,王小林,朱茂晓,沈振华,袁文成,陆建明..东太湖不同水域浮游生物周年变化及鲢、鳙食性的研究[J].海洋科学,2013,(10):104-110,7.基金项目
农业部渔业种质资源保护项目(2012122) （2012122）
苏州市科技支撑计划项目(SS201311) （SS201311）
