典型文献
Age,Growth and Maturation of Largehead Hairtail(Trichiurus japonicus)in the East China Sea
文献摘要：
Largehead hairtail(Trichiurus japonicus)is a commercially important fish species in China Seas,characterized by wide distribution,seasonal migration,spawning all year round.Under long-term high fishing pressure,the biological traits of largehead hair-tail have changed,such as miniaturization,smaller size-at-age and earlier age-at-maturation.To explore its current biological charac-ters,we analyzed age,growth and maturation of largehead hairtail in the East China Sea by analyzing the otolith microstructure and gonads.The results showed that largehead hairtail is mainly composed of 1 year and 2 years old individuals.The estimated von Ber-talanffy growth function(VBGF)showed significant differences between sexes,and asymptotic pre-anal length of male is longer than that of female.Two spawning seasons were observed in spring and autumn by monthly gonadosomatic index(GSI).Compared to historic survey data,the average pre-anal length at age decreased and size-at-maturation became smaller in the East China Sea.This study updates life history parameters of largehead hairtail,and provides a reference for the present status of largehead hairtail,which can contribute to largehead haritail stock assessment and sustainable utilization in the China Seas.
文献关键词：
中图分类号：
作者姓名：
CHENG Shuo;SUN Peng;LIU Yang;CHEN Qi;SHI Zhengtong;SUN Runlong
作者机构：
College of Fisheries,Ocean University of China,Qingdao 266003,China;College of Marine Life Sciences,Ocean University of China,Qingdao 266003,China
文献出处：
引用格式：
[1]CHENG Shuo;SUN Peng;LIU Yang;CHEN Qi;SHI Zhengtong;SUN Runlong-.Age,Growth and Maturation of Largehead Hairtail(Trichiurus japonicus)in the East China Sea)[J].中国海洋大学学报（自然科学英文版）,2022(05):1244-1250
A类：
Largehead,Hairtail,hairtail,largehead,talanffy,VBGF,haritail
B类：
Age,Growth,Maturation,Trichiurus,japonicus,East,China,commercially,important,species,Seas,characterized,by,wide,distribution,seasonal,migration,spawning,round,Under,term,high,fishing,pressure,biological,traits,have,changed,such,miniaturization,smaller,size,earlier,maturation,To,explore,current,analyzed,growth,analyzing,otolith,microstructure,gonads,results,showed,that,mainly,composed,years,old,individuals,estimated,von,Ber,function,significant,differences,between,sexes,asymptotic,length,longer,than,female,Two,seasons,were,observed,spring,autumn,monthly,gonadosomatic,GSI,Compared,historic,survey,data,average,decreased,became,This,study,updates,life,history,parameters,provides,reference,present,status,which,contribute,stock,assessment,sustainable,utilization
AB值：
0.491851
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