| 摘要: |
| 本文研究了滆湖1986-1988年人工放流主要鱼类的年龄组成、生长速度、肥满度、回捕率及其经济效益。青鱼、草鱼和团头鲂等主要放流种类的回捕率为23.85%-39.88%;鲢鳙鱼为8.20%-19.63%;中华绒螫蟹苗和蟹种分别为2.69%和48.57%。人工放流的产量效益平均为14.3倍,经济效益早均为9.6倍。 |
| 关键词: 人工放流 回捕率 产量效益 经济效益 滆湖 |
| DOI：10.18307/1994.0107 |
| 分类号: |
| 基金项目:国家重点科技攻关项目(75-06-04-01-07)子专题 |
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| Technical improvement of fish stocking in Gehu Lake and its benefits |
|
Kong Youjia1, Tong Heyi2
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1.Management Committee of Fisheries of Gehu Lake. Changzhou 213002;2.Shanghai Fisheries llnic., Shanghai 200090
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| Abstract: |
| The present paper deals with the age compositions, growth rates,condition coefficients, recapture rates, productive results and economic benefits of principal aquatic products which were stocked artificially during 1986-1988 in Gehu Lake. The recapture rates of black carp (Mylopharyngodon pureua), grass carp (Ctenopharyngod on ulellus) and blunt snout bream (Megalobrama amblycephala) were 23.85%~39-88%, silver carp (Hypophihaimichthys moliirix) and bighead carp (Aridvchthya nohilig) were 8.20%-19.63%. megalopa of mitten crab (Eriocheir avienaiti) was 2.69%. young mitten crab was-18.57%. The average production results of fish stocking increased by a factor of 14.3 and the average economic benefits by a factor of 9.6. |
| Key words: Fish stocking recapture rate production result economic benefit Gehu Lake |
