CLC number: Q178.11
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
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YU Zuo-ming, YAN Li-jiao, WU Jie. Studies on the changes of West Lake's zoobenthic communites after Qiantang River water was pumped into it[J]. Journal of Zhejiang University Science A, 2002, 3(1): 118-124.
@article{title="Studies on the changes of West Lake's zoobenthic communites after Qiantang River water was pumped into it",
author="YU Zuo-ming, YAN Li-jiao, WU Jie",
journal="Journal of Zhejiang University Science A",
volume="3",
number="1",
pages="118-124",
year="2002",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2002.0118"
}
%0 Journal Article
%T Studies on the changes of West Lake's zoobenthic communites after Qiantang River water was pumped into it
%A YU Zuo-ming
%A YAN Li-jiao
%A WU Jie
%J Journal of Zhejiang University SCIENCE A
%V 3
%N 1
%P 118-124
%@ 1869-1951
%D 2002
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2002.0118
TY - JOUR
T1 - Studies on the changes of West Lake's zoobenthic communites after Qiantang River water was pumped into it
A1 - YU Zuo-ming
A1 - YAN Li-jiao
A1 - WU Jie
J0 - Journal of Zhejiang University Science A
VL - 3
IS - 1
SP - 118
EP - 124
%@ 1869-1951
Y1 - 2002
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2002.0118
Abstract: During Jan. 1995 to Dec. 1996, monthly investigations on the zoobenthic communities of west Lake, samples were collected from six sampling stations. A total of 26 species of macrozoobenthos were identified. The seasonal changes in density and biomass of zoobenthos in this lake were analyzed. The annual mean densities were 980-2751 ind/m2 and mean biomass was 19.69-122.80 g/m2. The densities in winter and early spring were higher than those in summer and autumn. Comparative study of theprevious data (1982 to 1983) collected by the authors, showed that the succession of zoobenthic communities, dominated by Procludius choreus in density and Bellamya purificata in biomass, had been occurred in Xiaonan sub-lake after Qiantang River water was drawn into it; and that the species and biomass of zoobenthos were then increased and the density was decreased. In other sub-lakes, the dominant species were Limnodrilus hoffmeisteri and Tokunagayusurika akamusi in density and Branchiura sowerbyi and Tokunagayusurika akamusi in biomass. The water quality was bad in these sub-lakes because these dominant species are indicators of eutrophication. According to the Margalef index and Goodnight index, west Lake is still an eutrophic lake. Only the water quality of Xiaonan sub-lake was improved after water drawn from the Qiantang River was introduced into it.
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