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题名: HYDROBIOLOGY OF A FLOODING ECOSYSTEM LAKE CHENHU IN HANYANG HUBEI CHINA WITH PRELIMINARY ESTIMATION OF ITS POTENTIAL FISHERY PRODUCTION CAPACITY
作者: LIANG Y ; WANG J ; HU C
通讯作者: LIANG Y ; INST HYDROBIOL, ACAD SINICA, WUHAN, CHINA
刊名: Chinese Journal of Oceanology and Limnology
发表日期: 1988
卷: 6, 期:1, 页:40922
收录类别: 其他
英文摘要: For the purpose of fishery development, a hydrobiological investigation of Lake Chenhu was carried out in 1983 with reference to the productivity of various food organisms as well as fish. Of the entire lake, the annual net primary production was determined to be 27,818 .times. 106 kcal for phytoplankton, 2,898 .times. 106 kcal for macrophytes and 64,840 .times. 106 kcal for wet land vegetation. The annual secondary production chiefly from gastropods was 2,632 .times. 106 kcal. On the basis of 1981-1982 fishery data, the production of the main stocked fishes in the lake was also roughly computed. Analysing all obtained production data, we find the energy conversion rate of food organisms to fish in the water at the present stage is fairly low. Even in 1982, the year of better fishery management, food energy converted to plankton feeders or herbivores was only 1.6-1.8%; energy converted to fish yield was even lower, only 0.2-0.8%. To get a potential fish output of the ecosystem, a tentative estimation of fishery capacity of Lake Chenhu was made by using the index of food quotients and relevant conversion factors. The theoretical fish production in the lake is estimated to be around 6,000 t and, through the improvement of fishery management, an annual fish yield of 2,000 t can be expected.
ISSN号: 0254-4059
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17631
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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LIANG Y; WANG J; HU C.HYDROBIOLOGY OF A FLOODING ECOSYSTEM LAKE CHENHU IN HANYANG HUBEI CHINA WITH PRELIMINARY ESTIMATION OF ITS POTENTIAL FISHERY PRODUCTION CAPACITY,Chinese Journal of Oceanology and Limnology,1988,6(1):40922
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文件名: HYDROBIOLOGY OF A FLOODING ECOSYSTEM LAKE CHENHU IN HANYANG HUBEI CHINA WITH PRELIMINARY ESTIMATION OF ITS POTENTIAL FISHERY PRODUCTION CAPACITY.pdf
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