福建东山岛海域霞水母的渔业生物学研究  

Fishery biology of Cyanea nozakii resources in the waters of Dongshan Island

作　　者：卢振彬[1] 戴泉水[1] 颜尤明[1] 

机构地区：[1]福建省水产研究所,厦门361012

出　　处：《应用生态学报》2003年第6期973-976,共4页Chinese Journal of Applied Ecology

基　　金：福建省科研基金资助项目

摘　　要：1994年 4～ 9月调查结果表明 ,东山湾海域霞水母的密度高峰期出现在 6月 2 5日～ 7月 10日 ,生物量高峰期在 7月 10～ 8月 5日 ;群体的伞径分布范围 15～ 5 80mm ,平均 2 4 7.4 8mm ,体重分布范围0 .4～ 10 2 5 0 g ,平均 12 74g ;高次方程模拟的伞径生长方程式为Φt =15 .172 6 + 16 .72 0 4t + 0 .192 6t2 -0 .0 0 14t3 - 0 .0 0 0 4t4,指数高次方程模拟体重生长方程式为logeWt =- 0 .6 885 + 1.3397t - 0 .0 95 9t2 +0 .0 0 34t3 - 0 .0 0 0 0 5t4;以生物经济学原理确定合理开捕为 7月 15日 ,合理开捕伞径为 36 0mm .还讨论了表层水温和盐度与霞水母生物量和密度的关系及其资源开发等问题 .According to the investigations during April-September 1994, the peak date of Cyanea nozakii density of in the waters of Dongshan Island was from 25 June to 10 July,and that of its biomass was from 10 July to 5 August. The diameter of umbrella part of the stock ranged from 15 mm to 580 mm, averaging 247.48 mm,and the body weight ranged from 0.4 g to 10 250 g, averaging 1 274 g. The growth of the diameter of umbrella part and the body weight of Cyanea nozakii could be calculated using power equation and power exponential equation,respectively. Based on the bio economics principles,the optimal opening date was 15 July,and the rational fishing umbrella part was 360 mm

关 键 词：霞水母 密度 生物量 生长 开捕期 东山岛海域 

分 类 号：S968.9[农业科学—水产养殖]