Effects of western boundary currents and sea surface temperature anomalies on interannual variability of chub mackerel abundance in the Northwest Pacific
文献类型： 外文期刊
作者： Li, Jiasheng 1 ; Zhou, Weifeng 1 ; Dai, Yang 1 ; Tang, Fenghua 1 ; Wu, Yumei 1 ; Zhang, Heng 1 ; Fan, Xiumei 1 ; Cui, Xuesen 1 ;
作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key & Open Lab Remote Sensing Informat Technol Fis, Shanghai 200090, Peoples R China
2.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
关键词： Chub mackerel; Abundance; Kuroshio; Oyashio; Sea surface temperature anomaly; Northwest Pacific
期刊名称：JOURNAL OF SEA RESEARCH （ 影响因子：2.9； 五年影响因子：2.6 ）
ISSN： 1385-1101
年卷期： 2025 年 203 卷
页码：
收录情况： SCI
摘要： The abundance of chub mackerel (Scomber japonicus) in the Northwest Pacific has undergone significant changes in recent decades. To investigate the long-term and short-term impacts of environmental factors on the abundance of chub mackerel, Kuroshio volume transport in summer and winter, the Oyashio area, the Oyashio southern limit, and the Sea Surface Temperature Anomaly (SSTA), were selected to construct the ARDL-ECM model based on the Autoregression Distributed Lag (ARDL) method for 3 age groups with resource abundance as the response variable. The results showed that in short term effects there is a positive correlation between Kuroshio intensity and the chub mackerel abundance in winter, but a negative correlation in summer. Oyashio area can impact the fish abundance under 2 years old significantly (p < 0.001) and the change of Oyashio sourth limit only has a significant impact on the abundance of 0-age fish (p < 0.001). In the long-term relationship, Kuroshio significantly influences the abundance of fish aged 3 years and older (p < 0.001). SSTA had a significant impact on the abundance of all 3 age groups (p < 0.05), while Oyashio area may influence the fish abundance under 2 years old (p < 0.05). Furthermore, Oyashio south limit was found to affect the abundance of fish aged over 1 year (p < 0.01). SSTA can increase the abundance in both short term (p < 0.001) and long term (p < 0.001).The findings of this research may enhance our understanding of the variations in chub mackerel abundance in the Northwest Pacific.
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