摘要
本文报道了１９８５年８月～１９８６年７月长江口脊尾白虾体长分布和生殖习性，并应用ＥＬＥＦＡＮⅠ和ＥＬＥＦＡＮⅡ技术分析了每月的体长组成资料，分别估算了雌、雄虾和混合标本的生长参数、自然死亡系数、总死亡系数、利用率及补充类型等渔业资源特征。提出了长江Ｄ脊尾白虾的繁殖时间和所对应的体长范围及温、盐度条件。讨论了各渔业资源参数的适用性及补充类型与繁殖习性的关系。
Based on length-frequency data of Exopaleamon carinicauda collected in Changjiang River estuary from Ausust, 1985 to July, 1986, the length-frequency distribution and reproductive characteristics of the population were reported, monthly length-frequency data wre analysed by uSing ELEFAN Ⅰ and ELEFAN Ⅱ techniques,and growth parameters K and L∞, natural mortality M,total mortality Z,exploitation rate E and recruitment pattern were estimated separately according to the female, male and combined shrimp. The reproduction time and the range of reproductive body-length, temperature and Salinity during reproduction of the population were presented. Lastly discuSSion was made on appropriateness of the various bioiosical parameters and the relationship between recruiment Pattern and reproductive characteristics.
出处
《黄渤海海洋》
CSCD
1994年第4期21-27,共7页
Journal of Oceanography of Huanghai & Bohai Seas
基金
上海市攻关项目
关键词
脊尾白虾
长江口
渔业资源
生殖习性
Exopalaemon carinicauda ELEFAN Ⅰ and Ⅱ technique Changjiang River estuary
