| 滆湖人工放流技术的改进及其效益分析 |
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| 引用本文： | 孔优佳,童合一.滆湖人工放流技术的改进及其效益分析[J].湖泊科学,1994,6(1):55-61. |
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| 作者姓名： | 孔优佳 童合一 |
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| 作者单位： | 江苏省滆湖渔业生产管理委员会 常州213002(孔优佳)，上海水产大学 上海200090(童合一) |
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| 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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| 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。
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| 关 键 词： | 人工放流 回捕率 产量效益 经济效益 滆湖 |
| 收稿时间： | 1992/9/21 0:00:00 |
| 修稿时间： | 1992/11/1 0:00:00 |
Technical improvement of fish stocking in Gehu Lake and its benefits |
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| Kong Youjia and Tong Heyi.Technical improvement of fish stocking in Gehu Lake and its benefits[J].Journal of Lake Science,1994,6(1):55-61. |
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| Authors: | Kong Youjia and Tong Heyi |
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| Institution: | Management Committee of Fisheries of Gehu Lake. Changzhou 213002 and 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. |
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| Keywords: | Fish stocking recapture rate production result economic benefit Gehu Lake |
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