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题名: Status and conservation of sturgeons in Amur River, China: A review based on surveys since the year 2000
作者: Wang, Yamin ; Chang, Jianbo
会议文集: JOURNAL OF APPLIED ICHTHYOLOGY
会议名称: 5th International Symposium on Sturgeons
会议日期: MAY 09-SEP 13, 2005
出版日期: 2006
会议地点: Ramsar, IRAN
通讯作者: Wang, YM, Chinese Acad Sci, Inst Hydrobiol, No 7 So Rd E Lake, Wuhan 430072, Peoples R China
收录类别: SCI
部门归属: Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Minist Water Resources & Chinese Acad Sci, Inst Hydroecol, Wuhan 430079, Peoples R China; Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
主办者: Iranian Fisheries Res Org, Int Sturgeon Res Inst, World Sturgeon Conservat Soc, IUCN/SSC Sturgeon Specialist Grp, CITES, Minist Jihad Agr Iran, Iranian Fisheries Org, Shilat Trading Co, Imperial Caviar
摘要: Heilongjiang ( Amur) River Sturgeon ( Acipenser schrenckii) and Kaluga (Huso dauricus) are the only two species of Acipenseri-formes indigenous to the Heilongjiang ( Amur) River basin. As commercially important fishes for caviar production, these two species are confronted with over-fishing and population depletion. In 1987, the volume of exported caviar reached a peak of 26 metric tonnes (mt). Since 1992, the caviar production has declined gradually, fluctuating between 6.46 mt and 12.7 mt, with an annual average production of 9.16 mt. Thus, in China the export quota decreased to 5.94 mt after 2001. Only 6 companies were licensed by China to export caviar from these species. For the restocking of these two species, hatchery controlled reproduction ( including incubation of eggs and release of fry) continued from 1988 to 2005. During this period a total of 845 million fry have been released into the Heilongjiang River. The measures proposed to restore the natural resources include strict observation of local regulations on fishing and enforcement of fishing-prohibition periods. Capture quotas should be set for these two species and strictly enforced according to their existing resources. Sturgeon-breeding farms should be established to propagate and raise sturgeon fry to larger size, with the aim of releasing the fingerlings into the rivers and reservoirs so as to maintain and eventually enhance this natural resource.
语种: 英语
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内容类型: 会议论文
URI标识: http://ir.ihb.ac.cn/handle/342005/11763
Appears in Collections:中科院水生所知识产出(2009年前)_会议论文

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Recommended Citation:
Wang, Yamin; Chang, Jianbo.Status and conservation of sturgeons in Amur River, China: A review based on surveys since the year 2000.见:.JOURNAL OF APPLIED ICHTHYOLOGY,,2006,44-52
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