Seasonal effects of extreme climate events and sea surface temperature indicators on the vulnerability of marine pelagic fisheries in the Bay of Bengal region

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Marine environmental research Pub Date : 2025-02-13 DOI:10.1016/j.marenvres.2025.107009

Monika Makwana, Unmesh Patnaik

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引用次数: 0

Abstract

The study highlights the vulnerability of the eastern coast to tropical cyclones and the unique characteristics of the Bay of Bengal region. Seasonality, driven by global climatic events and geography, significantly affects the marine ecosystem. Furthermore, it underscores the effects of extreme climate events on marine pelagic fisheries and advocates for a state-based approach to raise awareness among government institutions and fishing communities. Findings reveal a significant negative relationship between Sea Surface Temperature (SST) and fish-catch (coefficient = −0.09, p < 0.01), indicating that rising SST adversely affects pelagic fish populations. Moreover, increased frequency of extreme events (−0.12 to −2.06, p < 0.05 to p < 0.01) and disturbances (−0.149 to −0.679, p < 0.05) exhibits detrimental impacts across various models. Notably, seasonal variations play a crucial role, with quarters 1, 3, and 4 demonstrating positive associations (0.186–0.604, p < 0.1 to p < 0.05) with fish-catch, signifying potentially favourable conditions during specific seasons. State-specific analysis highlights diverse impacts, wherein West Bengal experiences substantial negative effects from extreme events (−2.056, p < 0.01), emphasizing regional disparities. These findings underscore the need for regionalized mitigation strategies and sustainable fishing practices to ensure the future of the Bay of Bengal's marine ecosystem.

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来源期刊

Marine environmental research 环境科学-毒理学

CiteScore

5.90

自引率

3.00%

发文量

217

审稿时长

46 days

期刊介绍： Marine Environmental Research publishes original research papers on chemical, physical, and biological interactions in the oceans and coastal waters. The journal serves as a forum for new information on biology, chemistry, and toxicology and syntheses that advance understanding of marine environmental processes. Submission of multidisciplinary studies is encouraged. Studies that utilize experimental approaches to clarify the roles of anthropogenic and natural causes of changes in marine ecosystems are especially welcome, as are those studies that represent new developments of a theoretical or conceptual aspect of marine science. All papers published in this journal are reviewed by qualified peers prior to acceptance and publication. Examples of topics considered to be appropriate for the journal include, but are not limited to, the following: – The extent, persistence, and consequences of change and the recovery from such change in natural marine systems – The biochemical, physiological, and ecological consequences of contaminants to marine organisms and ecosystems – The biogeochemistry of naturally occurring and anthropogenic substances – Models that describe and predict the above processes – Monitoring studies, to the extent that their results provide new information on functional processes – Methodological papers describing improved quantitative techniques for the marine sciences.