西南大西洋公海阿根廷滑柔鱼生物学特性的初步研究  

Biological characteristics of squid Illex argentinus in the high sea waters of Southwest Atlantic Ocean

作　　者：龚彩霞[1] 陈新军[1,2,3] 刘必林[1,2,3] 陆化杰[1] 

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]大洋生物资源开发和利用上海市高校重点实验室,上海201306 [3]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

出　　处：《大连水产学院学报》2010年第4期353-358,共6页Journal of Dalian Fisheries University

基　　金：国家"863"计划项目(2007AA092202);国家科技支撑计划项目(2006BAD09A05);国家自然科学基金资助项目(NSFC40876090);上海市曙光跟踪计划项目(08GG14);上海市捕捞学重点学科项目(S30702)

摘　　要：以2009年1—4月中国鱿钓船在西南大西洋公海生产期间连续采集的阿根廷滑柔鱼Illex argentinus为样本(6 094尾),对其生物学特性进行初步分析。结果表明:渔获物胴长为148～307 mm,优势胴长为200～260 mm,占总数的86.5%;体重为76～586 g,优势体重为150～300 g,占总数的78.7%,判定该渔获物主要来自南巴塔哥尼亚种群;胴长(L)与体重(W)的关系式为W=1.2×10-4L2.6779;渔汛期间,胴长、体重与时间之间均符合指数方程模式,分别为Lt=207.54e0.0013t和Wt=181.52e0.0046t;阿根廷滑柔鱼性成熟度以Ⅱ期为主,占总数的56.8%,初次性成熟的胴长为244.7 mm;摄食等级以2级为主,占总数的52.0%。The biological characteristics of squid Illex argentinus were studied in about 6094 samples collected from Chinese squid jigging vessels in the high sea waters of Southwest Atlantic from January to April in 2009.The results showed that the squid mantle length was found to be ranged from 148 to 307 mm with dominant size between 200 mm and 260 mm,accounting for 86.5% of the total number,and body weight from 76 to 586 g with majority of 150-300 g（78.7%）.The relationship between mantle length and weight was expressed as the equation W=1.2×10^-4L^2.6779.The relationship between mantle length or body weight and time was described by the exponential function during the fishing seasons as Lt=207.54e^0.0013t and Wt=181.52e0.0046t respectively.About 56.8% of the squid was found to be at maturity of stage II,and the first mature squid（52.0%） had mantle length of 244.7 mm and the stomach fullness of degree II.

关 键 词：阿根廷滑柔鱼 生物学特性 西南大西洋 

分 类 号：S917[农业科学—水产科学]