水产学报2012，Vol.36Issue(7)：1049-1056,8.DOI:10.3724/SP.J.1231.2012.27654
利用耳石微结构研究西南大西洋阿根廷滑柔鱼的日龄、生长与种群结构
Age, growth and population structure of Illex argentinus based on statolith microstructure in Southwest Atlantic Ocean
摘要
Abstract
Age and growth are two important biological characteristics of cephalopoda. According to the 3462 short-fin squid Illex argentinus samples collected by the Chinese jigging fishing fleet during 2007, 2008 and 2010, the age, growth and population structure of Illex argentinus were studied based on the microstructure of the statolith. The result indicated the life cycle of Illex argentinus is approximately one year, two hatching groups could be identified (austral winter group and austral autumn group), and there was a sexual dimorphism in the mantle length and body weight growth between different groups. The relationship between age and mantle length (ML) was best described by exponential and linear functions for females and males for austral winter group and exponential and logarithm functions for austral autumn group, respectively. The relationship between age and body weight (BW) was best described by exponential and logarithm functions for females and males for both two groups. The instantaneous relative growth rate of Illex argentisnus tended to be high at young stages, and then decreased with the age increasing, however the absolute growth rate tended to be higher with the age increasing, and the growth rate was different between males and females in the same age stage.关键词
阿根廷滑柔鱼/耳石/日龄与生长/种群结构/西南大西洋Key words
Illex argentinus/ statolith/ age and growth/ population structure/ Southwest Atlantic Ocean分类
生物科学引用本文复制引用
陆化杰,陈新军..利用耳石微结构研究西南大西洋阿根廷滑柔鱼的日龄、生长与种群结构[J].水产学报,2012,36(7):1049-1056,8.基金项目
国家“八六三”高技术研究发展计划(2012AA092303) （2012AA092303）
教育部博士点基金(20093104110002) （20093104110002）
曙光计划跟踪项目(08GG14) （08GG14）
上海市捕捞学重点学科建设项目(S30702) （S30702）
