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Climate Change Impacts on a Tropical Fishery Ecosystem: Implications and Societal Responses

Author

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  • Mohammad Mahmudul Islam

    (Department of Coastal and Marine Fisheries, Sylhet Agricultural University, Sylhet 3100, Bangladesh)

  • Naimul Islam

    (Department of Coastal and Marine Fisheries, Sylhet Agricultural University, Sylhet 3100, Bangladesh)

  • Ahasan Habib

    (Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu 21030, Malaysia
    Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh)

  • Mohammad Mojibul Hoque Mozumder

    (Helsinki Institute of Sustainability Science (HELSUS), Fisheries and Environmental Management Group, Faculty of Biological and Environmental Sciences, University of Helsinki, 00014 Helsinki, Finland)

Abstract

The present study aimed to map out the current threats and anticipated impacts of climate change on the most important hilsa shad ( Tenualosa ilisha ) fishery and the associated fishing communities based on fieldwork in six coastal fishing communities. To collect empirical data, individual interviews, focus group discussions, oral history, and key informant interviews were conducted. To supplement the empirical findings, time-series data of cyclones and sea-borne depressions in the Bay of Bengal were also analyzed. Analysis of secondary data regarding climate change-induced events and regional studies suggested that the biophysical conditions of the Bay of Bengal are likely to be aggravated in the future, potentially causing more frequent extreme events and affecting the livelihoods of coastal fishing communities in Bangladesh. The fisher respondents revealed that the main target hilsa shad fishery is particularly vulnerable to climate change in terms of alterations to migration patterns and breeding and growth performance. The fishers reported constant climate-related risks because they live in seafront locations, exposed to extreme events, and their occupation entails risky sea fishing. Fishers claimed that they often need return to the coast due to unsuitable weather conditions related to cyclones and frequent tropical depressions, which can cause financial losses or even causalities. Such events negatively affect fishers’ livelihoods, and wellbeing. To cope with the impacts of climate change the fishers have adopted various strategies at both sea fishing and household levels. However, these strategies only support the fishers in terms of immediate survival; they are not enough for long-term resilience. To improve the resilience of the hilsa fishers, the study argues for the implementation the Small-Scale Fisheries Guidelines (SSF Guidelines), which call for longer-term development goals, including in the immediate relief phase, and rehabilitation, reconstruction, and recovery to reduce vulnerabilities to climate and anthropogenic risks.

Suggested Citation

  • Mohammad Mahmudul Islam & Naimul Islam & Ahasan Habib & Mohammad Mojibul Hoque Mozumder, 2020. "Climate Change Impacts on a Tropical Fishery Ecosystem: Implications and Societal Responses," Sustainability, MDPI, vol. 12(19), pages 1-21, September.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:19:p:7970-:d:419868
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    References listed on IDEAS

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    5. Israt Jahan & Dewan Ahsan & Md Hasan Farque, 2017. "Fishers’ local knowledge on impact of climate change and anthropogenic interferences on Hilsa fishery in South Asia: evidence from Bangladesh," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 19(2), pages 461-478, April.
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    Cited by:

    1. Edison D. Macusi & Nitcel Aymie Albarido & Misael B. Clapano & Mudjekeewis D. Santos, 2022. "Vulnerability Assessment of Pacific Whiteleg Shrimp ( Penaeus vannamei ) Farms and Vendors in Davao, Philippines Using FishVool," Sustainability, MDPI, vol. 14(8), pages 1-15, April.
    2. Anuradha Talukdar & Petra Schneider & Amany Begum & Md. Abu Kawsar & Mst. Armina Sultana & Tofael Ahmed Sumon & Md. Rashed-Un- Nabi & Mohammad Mojibul Hoque Mozumder & Md. Mostafa Shamsuzzaman, 2022. "The Premium of Hilsa Sanctuary: A Socio-Economic and Ecological Evaluation from the Meghna Estuary, Bangladesh," Sustainability, MDPI, vol. 14(13), pages 1-13, June.

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