| 西北太平洋海域太平洋褶柔鱼秋生群产卵场指数动态评估 |
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| 引用本文： | 夏欣梅,田永军,刘阳,刘世刚,李建超,马舒扬.西北太平洋海域太平洋褶柔鱼秋生群产卵场指数动态评估[J].中国海洋大学学报(自然科学版),2022,52(3):61-71. |
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| 作者姓名： | 夏欣梅 田永军 刘阳 刘世刚 李建超 马舒扬 |
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| 作者单位： | 中国海洋大学水产学院渔业海洋学实验室,山东 青岛 266003;自然资源部第三海洋研究所,福建 厦门 361000 |
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| 基金项目： | 国家重点研究发展计划项目(2018YFD0900902);国家自然科学基金项目(41976210);全球变化与海气相互作用专项(GASI-02-PAC-YD)资助。 |
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| 摘 要： | 为探究太平洋褶柔鱼(Todarodes pacificus)秋生群资源丰度波动的原因,本研究利用适宜产卵的海表温度(SST)和水深数据,构建了太平洋褶柔鱼秋生群1979—2018年40年潜在产卵场模型,在此基础上开发了适宜海表温度均值(MVSS)、适宜性海表温度加权面积(SSWA)和等温线经向位置(MP)3种产卵场指数...
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| 关 键 词： | 太平洋褶柔鱼 西北太平洋 丰度 产卵场 海表温度 |
Evaluation of Dynamics Spawning Ground Indices for Autumn Cohort of Japanese Flying Squid (Todarodes pacificus) in Northwest Pacific |
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| Xia Xinmei,Tian Yongjun,Liu Yang,Liu Shigang,Li Jianchao,Ma Shuyang.Evaluation of Dynamics Spawning Ground Indices for Autumn Cohort of Japanese Flying Squid (Todarodes pacificus) in Northwest Pacific[J].Periodical of Ocean University of China,2022,52(3):61-71. |
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| Authors: | Xia Xinmei Tian Yongjun Liu Yang Liu Shigang Li Jianchao Ma Shuyang |
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| Institution: | (Laboratory of Fisheries Oceanography, College of Fisheries, Ocean University of China, Qingdao 266003, China;Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China) |
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| Abstract: | In order to find the reason of fluctuations in the autumn cohort abundance of Japanese flying squid(Todarodes pacificus),the potential spawning ground model was constructed for a period from 1979 to 2018 using sea surface temperature(SST)and bottom topography suitable for spawning.On this basis,we developed a series of spawning ground indices including,mean value of suitability sea surface temperature(MVSS),suitability SST weighted area(SSWA),and the meridional position of SST isoline(MP).In this study,we also analyzed the influence of the environmental condition change of spawning ground on the autumn cohort abundance of Japanese flying squid.The result showed that catch per unit effort(CPUE)is a better abundance index than catch and similar regime shift patterns were detected between squid abundance and spawning ground indices.MP24 has the most significant influence on autumn cohort abundance with a 1-year lag(MP24_Lag1).Our findings provided an essential basis and reference for predicting the recruitment of the autumn cohort of Japanese flying squid in the future. |
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| Keywords: | Japanese flying squid Northwest Pacific abundance spawning ground sea surface temperature |
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