应用生态学报2024，Vol.35Issue(6)：1716-1724,9.DOI:10.13287/j.1001-9332.202406.028
拉尼娜发生期东海太平洋褶柔鱼耳石生长特征
Growth characteristic of statolith of Todarodes pacificus in the East China Sea in the La Niña year
摘要
Abstract
To investigate the differences on morphological growth patterns of statolith of Todarodes pacificus in the East China Sea during La Niña and normal years,we analyzed the samples of T.pacificus collected in the East China Sea by Chinese light purse seine fishery fleets from February to April in 2020(a normal year)and 2021(a La Niña year).The results showed that total statolith length(TSL),lateral dome length(LDL),wing length(WL),and maximum width(MW)could be used as characterization parameters to representing the morphological growth of statolith.The characterization parameters of statolith in T.pacificus differed significantly between different climate years and between different genders.The values of those characterization parameters of statolith were greater in normal year than those in La Niña year,which in both years were larger in females,except for TSL in males in La Niña year.The statolith growth of males were faster than that of females in different climate years.TSL,LDL,and WL increased faster in normal year,while MW increased faster in La Niña year.The relative size of statolith gradually slowed down with the growth of individuals.关键词
太平洋褶柔鱼/耳石外形/生长特征/拉尼娜/东海Key words
Todarodes pacificus/morphological characteristics of statolith/growth pattern/La Niña/the East Chi-na Sea引用本文复制引用
郭瑞玉,陆化杰,孙天姿,赵懋林,张弼强,杨思哲..拉尼娜发生期东海太平洋褶柔鱼耳石生长特征[J].应用生态学报,2024,35(6):1716-1724,9.基金项目
本文由国家重点研发计划项目(2023YFD2401303)和国家自然科学基金项目(41506184)资助. （2023YFD2401303）
