三个不同海区鸢乌贼渔业生物学的初步比较研究
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- 英文论文题名：Comparison offishery biology of Sthenoteuthis oualaniensis in three fishing areas
- 论文作者：李建华 ; 方舟 ; 刘必林
- 英文论文作者：LI Jianhua ; FANG Zhou ; LIU Bilin
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;国家远洋渔业工程技术研究中心;大洋渔业资源可持续开发省部共建教育部重点实验室;远洋渔业协同创新中心;
- 论文关键词：鸢乌贼 ; 渔业生物学 ; 印度洋西北部 ; 中东太平洋赤道海域 ; 中西太平洋
- 英文论文关键词：Sthenoteuthis oualaniensis ; fishery biology ; Northwest of Indian Ocean ; central eastern Pacificequatorial area ; central western Pacific
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S917.4
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：537k
- 原文格式：D
- 会议级别：全国
摘要
根据2005年4~5月、2014年4~6月以及2014年2~6月我国渔船在印度洋、中东太平洋赤道和中西太平洋海域采集的鸢乌贼样本,对其胴长、体重、性成熟度组成和初次性成熟胴长等基础生物学进行比较研究。研究表明,印度洋海域雌性个体优势胴长及所占的比例为380~560mm和83.50%;中东太平洋赤道海域为160~240mm和81.86%;中西太平洋海域雌性为140~180mm和77.78%,雄性为140~160mm和93.14%。印度洋海域个体生长指数小于3,其它地区均大于3。印度洋海域的性成熟个体占总体的46.5%,在胴长为320mm已经开始出现性成熟个体;中东太平洋赤道海域性成熟个体占总体的63.24%,在胴长为200mm时已经出现了性成熟个体;中西太平洋海域雌性性成熟个体占总体的10.1%,胴长160mm已经有性成熟个体,雄性为65.68%。本研究结果显示,三个海域的鸢乌贼均为混合群体,印度洋海域主要为大型群,中东太平洋赤道海域和中东太平洋海域主要为中型群,也有一定量的小型群存在。
Based on samples from Chinese fishing vessels in the high sea waters of the Indian Ocean in 2005 from April to May, central easternequatorial area and central west of the Pacific in2014 from February to June, the geographic biological characteristics of Sthenoteuthis oualaniensis were studied and compared in mantle length, body weight and sexual maturation.Results showed that mantle lengthof female squid in the Indian Ocean ranged from 380 to 560 mm,in central easternequatorial area ranged from 160-240 mm, and in the central west Pacific ranged from 140-180 mm for females and 140-160 mm for males. The growth indices in the Indian Ocean was less than 3, and more than 3 in other areas; the composition of sexual maturity also had significant difference among three areas. Mature individuals accounted for 46.5% in the Indian Ocean; 63.24% of total number were mature in central easternequatorial area. In central west Pacific Ocean, mature individuals account for 10.1% and 65.68% for females and males respectively.
Based on samples from Chinese fishing vessels in the high sea waters of the Indian Ocean in 2005 from April to May, central easternequatorial area and central west of the Pacific in2014 from February to June, the geographic biological characteristics of Sthenoteuthis oualaniensis were studied and compared in mantle length, body weight and sexual maturation.Results showed that mantle lengthof female squid in the Indian Ocean ranged from 380 to 560 mm,in central easternequatorial area ranged from 160-240 mm, and in the central west Pacific ranged from 140-180 mm for females and 140-160 mm for males. The growth indices in the Indian Ocean was less than 3, and more than 3 in other areas; the composition of sexual maturity also had significant difference among three areas. Mature individuals accounted for 46.5% in the Indian Ocean; 63.24% of total number were mature in central easternequatorial area. In central west Pacific Ocean, mature individuals account for 10.1% and 65.68% for females and males respectively.
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