福建水产Issue(3)：169-175,7.
西南大西洋公海阿根廷滑柔鱼渔业生物学初探
Fishery biological properties of Illex argentines in the High Sea of Southwest Atlantic Ocean
摘要
Abstract
Fishery biology including catch stock composition, morphological properties, sex ratio, nidamen-tal gland and gonad development of squid Illex Argentines were analyzed based on the 666 samples from the China’s fishing boat in the Southwest Atlantic Ocean during January to April 2012 . The results showed that the mantle length ranged from 91 mm to 351 mm, showing a bimodal distribution, the average mantle length of females and males was 243. 6 mm and 214. 5 mm respectively, meaning that the size of female individuals was significantly bigger than that of males. The sex ratio of female to male was 1. 26:1, and the females domina-ted in this stock. The sexual maturity was mainly in phase Ⅱ (57. 9%) , but the proportion of mature indi-viduals above phase Ⅲ reached 42. 1%. The sexual maturity and nidamental gland development of female were related to the individual size and further researches suggested that nidamental gland length-weight pres-ented a power function, and nidamental gland index ( NGI) of mature individuals was significantly greater than for the immature individuals. The male gonad gradually developed with its body size. According to body size and sexual maturity, the squid captured during the investigation was mainly South Patagonic Stock ( SPS) , mixed with a small amount of Summer-Spawning Stock ( SSS) .关键词
阿根廷滑柔鱼/渔业生物学/西南大西洋Key words
Illex argentinus/fishery biology/Southwest Atlantic Ocean分类
水产学引用本文复制引用
朱文斌,陈峰,张龙,徐汉祥,张洪亮..西南大西洋公海阿根廷滑柔鱼渔业生物学初探[J].福建水产,2014,(3):169-175,7.基金项目
2012年浙江省远洋渔业探捕项目-西南大西洋滑柔鱼资源探捕(浙海渔计[2013]110号) （浙海渔计[2013]110号）
