Climate-Related Variations in Autumn Cohort of Japanese Common Squid Todarodes pacificus

作     者：YU Wei FENG Zhiping CHEN Bingjian WEI Zhenhua FENG Yinyin YU Wei;FENG Zhiping;CHEN Bingjian;WEI Zhenhua;FENG Yinyin

作者机构：Shandong Marine Resources and Environment Research InstituteYantai 264006China College of Marine SciencesShanghai Ocean UniversityShanghai 201306China National Ocean Satellite Shandong Data Application CenterYantai 264006China Shandong Provincial Key Laboratory of Marine Ecological RestorationYantai 264006China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2023年第22卷第2期

页      面：490-500页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：This study was financially supported by the Shanghai Talent Development Funding for the Project(No.2021078) the National Natural Science Foundation of China(No.41906073) the Construction and Application Demonstration of Natural Resources Satellite Remote Sensing Technology System(No.202101003) 

主　　题：Todarodes pacificus vertical water temperature spawning ground Pacific Decadal Oscillation regime shift 

摘      要：The Japanese common squid Todarodes pacificus is widely distributed in the Sea of Japan,the East China Sea and the Northwest Pacific Ocean,and is largely exploited by the Asia-Pacific *** this study,the impacts of regime shift of the Pacific Decadal Oscillation(PDO)during 1977-2015 on the autumn cohort of *** were assessed by examining the variations in vertical water temperatures at depths of 0 m(Temp_0 m),50 m(Temp_50 m)and 100 m(Temp_100 m)and the distribution pattern of preferred spawning ground(SSG).Spatial and temporal correlation analysis revealed that the PDO index exhibited a significantly negative relationship with vertical water temperatures at different depths and was negatively related to catch-per-unit-effort(CPUE)and stock biomass of *** addition,water temperatures in the specific three water layers were positively associated with *** PDO regime shift strongly affected the thermal condition and spawning ground of *** to the negative PDO,the waters from the surface to the deep became cool in the positive PDO phase;correspondingly,the area of SSG largely contracted at different ***,the CPUE and stock biomass of *** profoundly *** the results it can be concluded that the PDO regime shift-driven changes in vertical thermal condition and SSG ranges can yield substantial impacts on *** abundance.