首页 | 官方网站   微博 | 高级检索  
     

基于耳石微结构的西北太平洋柔鱼群体结构、年龄与生长的研究
引用本文:陈新军,马金,刘必林,陆化杰,曹杰.基于耳石微结构的西北太平洋柔鱼群体结构、年龄与生长的研究[J].水产学报,2011,35(8):1191-1198.
作者姓名:陈新军  马金  刘必林  陆化杰  曹杰
作者单位:1. 上海海洋大学海洋科学学院,上海 201306;上海海洋大学大洋生物资源开发和利用上海市高校重点实验室,上海 201306;上海海洋大学大洋渔业资源可持续开发省部共建教育部重点实验室,上海 201306
2. 上海海洋大学海洋科学学院,上海,201306
基金项目:教育部博士点基金(20093104110002);上海市曙光计划跟踪计划(08GG14);上海市优秀学科带头人计划(10XD1402000);国家“八六三”高技术研究发展计划(2007AA092201; 2007AA092202);上海市重点学科(S030702)
摘    要:根据2007年7—10月在西北太平洋柔鱼传统作业渔场采集的样本,利用耳石微结构对其渔获群体结构、年龄与生长进行了研究。分析认为,雌性个体胴长为200~395 mm,日龄为123~258 d;雄性个体胴长为200~353 mm,日龄为127~274 d。7、8月渔获样本的优势日龄为151~180 d,9月为181~210 d,10月为211~240 d。孵化日期为2006年12月下旬至2007年6月上旬,其中1—4月为高峰期。雌性个体的胴长绝对生长率平均为(1.175±0.127) mm/d,雄性为(0.952±0.213) mm/d。其胴长、体质量与日龄的关系可分别用线性和指数方程来拟合,雌、雄个体胴长和体质量生长存在显著差异。研究认为,传统作业渔场中大多数渔获属冬春生群,7—10月各月优势日龄组呈现出随月变化一致的趋势,进一步印证了柔鱼轮纹为日周期的结论。推测认为,柔鱼孵化后,从产卵场洄游至索饵场需要4~6个月的时间。

关 键 词:柔鱼    耳石微结构    年龄    生长    渔获群体结构    西北太平洋
收稿时间:3/7/2011 1:45:36 PM
修稿时间:2011/5/12 0:00:00

Population structure,age and growth of neon flying squid(Ommastrephes bartramii)in the northwest Pacific Ocean based on statolith microstructure
CHEN Xin-jun,MA Jin,LIU Bi-lin,LU Hua-jie and CAO Jie.Population structure,age and growth of neon flying squid(Ommastrephes bartramii)in the northwest Pacific Ocean based on statolith microstructure[J].Journal of Fisheries of China,2011,35(8):1191-1198.
Authors:CHEN Xin-jun  MA Jin  LIU Bi-lin  LU Hua-jie and CAO Jie
Affiliation:College of Marine Sciences, Shanghai Ocean University, Shanghai,College of Marine Sciences, Shanghai Ocean University, Shanghai,College of Marine Sciences, Shanghai Ocean University, Shanghai,College of Marine Sciences, Shanghai Ocean University, Shanghai,College of Marine Sciences, Shanghai Ocean University, Shanghai
Abstract:According to the samples of neon flying squid (Ommastrephes bartramii)collected by Chinese squid jigging vessels during July to October in 2007 in the traditional fishing ground of northwest Pacific Ocean,the population structure,age and growth of O.bartramii are obtained from the statolith microstructure.The results indicated that the mantel length of female squid ranged from 200 to 395 mm with the age ranging from 123 to 256 d,and the mantel length of male squid is between 200 to 353 mm with age ranging from 127 to 274 d.In July and August the dominant age is from 151 d to 180 d,the ages of 181 to 210 d account for the most in September,and the age class of 211 to 240 d takes up the dominant part in October.The hatching dates of sampled squid were from December 2006 to June 2007,and the peak hatching dates are distributed in the months of January to April.The average absolute growth rates of mantle length reached (1.175±0.127) mm/d and (0.952±0.213) mm/d for female and male squids respectively.The relationships between mantle length and age,between body weight and age were best described by linear and exponential functions respectively.The female and male growth showed significant differences.The results indicated most of the catch in the traditional fishing ground belonged to the winter-spring spawning cohort.The monthly dominant age class changes the same as time going on,which further confirms the daily deposition of growth increments of O.bartramii.It is deduced that the squid spent about 4-6 months on the migration from spawning ground to feeding ground.
Keywords:Ommastrephes bartramii  statolith microstructure  age  growth  the northwest Pacific Ocean  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《水产学报》浏览原始摘要信息
点击此处可从《水产学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号