##中尺度涡影响全球大洋鱿鱼渔业，科研团队揭示新机制
**中新网上海8月20日电 (记者 许婧 郑莹莹)** 上海海洋大学陈新军教授团队联合山东大学于海庆副研究员团队近日在环境领域知名期刊《Science of The Total Environment》上发表了一篇研究论文，首次揭示了中尺度涡对全球大洋鱿鱼渔业产生的纬向反转影响，并提出了“温度-食物”平衡假说来解释这一现象。
近年来，鱿鱼等头足类捕捞量大幅增加，已成为人类食物的重要来源，其渔业资源的时空动态特征和背后的生态动力机制备受关注。然而，由于学科交叉不足，人们对全球大洋鱿鱼渔场的了解仍然有限，这阻碍了渔业资源的预测和可持续管理。
该研究团队利用基于卫星的高分辨率全球捕捞活动数据集，对全球主要鱿鱼渔场进行了分析，发现中尺度涡对鱿鱼捕捞活动产生了纬向反转的影响：热带（温带）水域的鱿鱼捕捞活动更倾向于聚集在气旋涡（反气旋涡）核心，且这种影响模式随着涡旋强度的增强而放大。
结合以往研究，该研究推测中尺度涡对鱿鱼捕捞活动的影响主要受海洋环境驱动的下行控制。研究团队进一步提出了“温度-食物”平衡假说：中尺度涡引起的环境变化会影响鱿鱼的食物摄入和能量消耗，导致它们在炎热但食物有限的水域中更倾向于选择较冷且富营养的气旋涡，而在营养丰富但热量有限的水域则更倾向于选择温暖且富氧的反气旋涡。
该研究成果为理解中尺度涡对全球大洋鱿鱼渔业的影响提供了新的视角，有助于提高对鱿鱼渔场时空动态的预测能力，并为渔业资源的可持续开发和管理提供科学依据。
英语如下：
##Mesoscale Eddies Impact Global Squid Fisheries: Chinese Research Team UnveilsNew Mechanism
**Keywords:** squid, eddy, fisheries
**Shanghai, August20 (Xinhua)** – A research team led by Professor Chen Xinjun from Shanghai Ocean University, in collaboration with Associate Researcher Yu Haiqing from Shandong University, has published a study in the renowned environmental journal *Science of The Total Environment*. The study reveals for the first time the latitudinal reversal effect of mesoscaleeddies on global oceanic squid fisheries and proposes a “temperature-food” balance hypothesis to explain this phenomenon.
In recent years, the catch of cephalopods, including squid, has increased significantly, making them a vital source of foodfor humans. The spatiotemporal dynamics of their fishery resources and the underlying ecological driving mechanisms have attracted considerable attention. However, due to insufficient interdisciplinary research, our understanding of global oceanic squid fishing grounds remains limited, hindering the prediction and sustainable managementof fishery resources.
The research team analyzed global major squid fishing grounds using a high-resolution global fishing activity dataset based on satellite data. They discovered that mesoscale eddies exert a latitudinal reversal effect on squid fishing activities: squid fishing activities in tropical (temperate) waters tend to cluster around the cores of cyclonic (anticyclonic) eddies, and this influence pattern amplifies with increasing eddy intensity.
Drawing on previous research, the study suggests that the influence of mesoscale eddies on squid fishing activities is primarily driven by downward control from the marine environment. The research team further proposed a “temperature-food”balance hypothesis: environmental changes induced by mesoscale eddies affect squid food intake and energy expenditure, leading them to prefer colder and nutrient-rich cyclonic eddies in hot but food-limited waters, while favoring warmer and oxygen-rich anticyclonic eddies in nutrient-rich but energy-limited waters.
These findings provide a new perspective on understanding the impact of mesoscale eddies on global oceanic squid fisheries, contributing to improved prediction of the spatiotemporal dynamics of squid fishing grounds and providing scientific basis for the sustainable development and management of fishery resources.
【来源】http://www.chinanews.com/gj/2024/08-20/10271985.shtml
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