4.7 Article

Fishery Resources, Ecological Environment Carrying Capacity Evaluation and Coupling Coordination Analysis: The Case of the Dachen Islands, East China Sea

期刊

FRONTIERS IN MARINE SCIENCE
卷 9, 期 -, 页码 -

出版社

FRONTIERS MEDIA SA
DOI: 10.3389/fmars.2022.876284

关键词

marine ecological environment carrying capacity; fishery resources carrying capacity; coupling and coordination; index system method; Dachen Islands

资金

  1. National Key R&D Program of China [2018YFD0900704, 2019YFD0901302, 2019YFD0901303]
  2. China Agriculture Research System [CARS-50]
  3. National Natural Science Foundation of China [41876191]

向作者/读者索取更多资源

This study proposed an evaluation method for the carrying capacity of fishery resources and ecological environment and analyzed the coupling coordination degree between them based on investigation data in Dachen Islands. The results showed that the islands were in a critical overload state, with significant fluctuations among seasons.
Impacts of human activity on the sustainable development of marine fisheries have been greatly concerned, and the carrying capacity with theoretic and practical meanings has become a focused area over the past two decades. More importantly, there are few studies on the fishery resources and environment compound system. In this study, based on the investigation data in Dachen Islands during 2019-2021, we proposed the evaluation method of fishery resources and ecological environment carrying capacity (FRCC & MEECC) and analyzed the coupling coordination degree between the fishery resources and environment. The results showed that (1) the MEECC of Dachen Islands was in the critical overload state and fluctuated significantly among seasons and the winter voyage of 2021 was the worst. (2) The nekton index of Dachen Islands was basically stable, the fish eggs and juvenile index dropped markedly, and the FRCC was also critically overloaded. (3) The fishery resources and marine environment were moderately balanced. Further, the development was relatively synchronized in autumn of 2019 and 2020, while the fishery resources in spring of 2021 lagged behind the marine environment.

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