Seasonal maturity and size at age of Loligo pealeii in waters of southern New England
Seasonal maturity and size at age of Loligo pealeii in waters of southern New England
复制标题
新英格兰南部水域 Loligo Pealeii 的季节性成熟度和年龄大小
DOI：
10.1006/jmsc.2001.1076
复制
发表时间：
2001
影响因子：
4.5
通讯作者：
J. Brodziak
中科院分区：
文献类型：
--
作者：
W. K. Macy;J. Brodziak
本文探讨了模式的大小年龄和成熟的大小和年龄使用的数据从机会，季节性收集的Loligo pealeii从渔业和研究调查南部新英格兰在1993-1997年。我们描述了基本的生活史参数，如寿命，大小和年龄在50%的成熟，大小在性成熟阶段，和性别和孵化月的增长率。这些结果为研究该属植物的种群结构提供了新的定量信息。pealeii和提供的证据表明，该种群的近海和近海组成部分之间的联系可能比以前认为的更为复杂。年龄组成似乎是稳定的全年，除了在秋季，与模态年龄捕获只有150-180天。L.根据观察到的年龄推断，pealeii产卵全年发生。L.近海和近海渔业的直接年龄抽样。pealeii表明，这些季节性渔业可能相互作用，每次捕捞的鱿鱼在前一个季节产卵。2001年国际海洋考察理事会
This paper investigates patterns of size-at-age and of maturity-at-size and -age using data from opportunistic, seasonal collections of Loligo pealeii from fisheries and research surveys off southern New England during 1993–1997. We describe basic life history parameters, such as lifespan, size and age at 50% maturity, size at stage of sexual maturation, and growth rates by sex and hatch month. The results provide new quantitative information on the population structure of L. pealeii and provide evidence that the link between the inshore and offshore components of the stock may be more complicated than formerly believed. Age composition appeared to be stable throughout the year, except during autumn, with modal ages at capture of only 150–180 d. L. pealeii spawning was inferred to occur throughout the year based on observed ages. Direct age sampling of the inshore and offshore fisheries for L. pealeii showed that these seasonal fisheries likely interact and that each harvests squid spawned in the previous season. 2001 International Council for the Exploration of the Sea