北太平洋公海秋季鲐鱼生物学特性的初步研究  

A Preliminary Study on Biological Characteristics of Scomber japonicus in the North Pacific Ocean in Autumn

作　　者：庄之栋[1,2] 马超 刘勇[1,2] 徐春燕 蔡建堤[1,2] 沈长春 ZHUANG Zhidong;MA Chao;LIU Yong;XU Chunyan;CAI Jiandi;SHEN Changchun(Fisheries Research Institute of Fujian,Xiamen 361013,China;Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Xiamen 361013,China)

机构地区：[1]福建省水产研究所,福建厦门361013 [2]福建省海洋生物增养殖与高值化利用重点实验室,福建厦门361013

出　　处：《海洋湖沼通报》2018年第6期125-131,共7页Transactions of Oceanology and Limnology

基　　金：福建省远洋渔业资源调查与信息技术服务重大研发平台(2015N2001);闽台重要海洋生物资源高值化开发技术公共服务平台项目(2014FJPT01);福建重要海洋经济生物种质库与资源高效开发技术公共服务平台(14PZY017NF17)资助

摘　　要：根据2016年秋季北太平洋公海调查所采集的鲐鱼样本生物学数据,对其生物学特性进行了初步研究。结果表明,8～10月鲐鱼叉长范围为160～425mm,优势叉长组为170～230mm,占总数的48.65%,各月份之间叉长均值和分布均存在显著性差异(F=57.132,P<0.05);叉长与体重关系为W=1.056×10-6L3.4101(R2=0.9868);雌雄性比为1.23:1,性腺成熟度以Ⅰ期为主,占63.40%,未发现有Ⅲ期及以上样本;摄食等级以2～4级为主,占样本总数的79.15%,各月份摄食等级也存在显著性差异(F=9.921,P<0.05)。Based on the data of Scomber japonicus collected in the North Pacific Ocean in the autumn of 2016,the biological characteristics of Scomber japonicus were studied.The results showed that the fork length varied between 160 and 425mm from August to October,and the dominant fork length varied between 170and 230mm which occupied 48.65 percent of total catches.The mean length and length distribution each month had significant differences (F=57.132,P<0.05).The relationship between fork length and body weight fitted by the power exponential function was W=1.056×10^-6L^3.4101(R2= 0.9868).The sex ratio was 1.23:1.Maturity at I of the gonad was dominated,which accounted for 63.40% of the total.Maturity at I of the gonad or above was not found.The feeding intensity was dominated by grade 2,grade 3and grade 4,which occupied 79.15% of total catches.The feeding intensity each month also had significant differences (F=9.921,P<0.05).

关 键 词：鲐鱼 北太平洋 秋季 生物学特性 

分 类 号：S932[农业科学—渔业资源]