Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India
Kawakawa Euthynnus affinis (Cantor, 1849) is one of the commercially exploited tuna fishery resource of India. Except landing data, no other information was available on its stock status. Hence, present study investigated the sustainability status of kawakawa fishery from Tamil Nadu, India. Data on...
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Aquaculture and Fisheries |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468550X23000886 |
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| author | Rajendran Abinaya Moosambikandy K. Sajeevan |
| author_facet | Rajendran Abinaya Moosambikandy K. Sajeevan |
| author_sort | Rajendran Abinaya |
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| description | Kawakawa Euthynnus affinis (Cantor, 1849) is one of the commercially exploited tuna fishery resource of India. Except landing data, no other information was available on its stock status. Hence, present study investigated the sustainability status of kawakawa fishery from Tamil Nadu, India. Data on annual catch and effort were reconstructed for the period of 2001–2020. The Catch-based MSY (CMSY), the Bayesian state-space Schaefer surplus production Model (BSM), and stochastic Surplus Production model in Continuous Time (SPiCT) packages were used to investigate the stock exploitation by running surplus production models with catch, catch per unit effort (CPUE), and other life history data. The biological reference points result of maximum sustainable yield (MSY) or biomass giving MSY (Bmsy) and fishing mortality giving MSY (Fmsy) of all the models indicated that the kawakawa stock in Tamil Nadu was subjected to overfishing and heading towards overfished status in recent decades. Results of the present study suggest reduction of fishing effort to keep the landing at MSY level and achieve a sustainable fishery. |
| format | Article |
| id | doaj-art-4d40e53f29b045b1a27005233bc7f69a |
| institution | Kabale University |
| issn | 2468-550X |
| language | English |
| publishDate | 2025-01-01 |
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| series | Aquaculture and Fisheries |
| spelling | doaj-art-4d40e53f29b045b1a27005233bc7f69a2025-02-09T05:00:51ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2025-01-01101132140Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of IndiaRajendran Abinaya0Moosambikandy K. Sajeevan1Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies, Kochi, Kerala, 682506, IndiaCorresponding author.; Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies, Kochi, Kerala, 682506, IndiaKawakawa Euthynnus affinis (Cantor, 1849) is one of the commercially exploited tuna fishery resource of India. Except landing data, no other information was available on its stock status. Hence, present study investigated the sustainability status of kawakawa fishery from Tamil Nadu, India. Data on annual catch and effort were reconstructed for the period of 2001–2020. The Catch-based MSY (CMSY), the Bayesian state-space Schaefer surplus production Model (BSM), and stochastic Surplus Production model in Continuous Time (SPiCT) packages were used to investigate the stock exploitation by running surplus production models with catch, catch per unit effort (CPUE), and other life history data. The biological reference points result of maximum sustainable yield (MSY) or biomass giving MSY (Bmsy) and fishing mortality giving MSY (Fmsy) of all the models indicated that the kawakawa stock in Tamil Nadu was subjected to overfishing and heading towards overfished status in recent decades. Results of the present study suggest reduction of fishing effort to keep the landing at MSY level and achieve a sustainable fishery.http://www.sciencedirect.com/science/article/pii/S2468550X23000886Coastal tunaKawakawa fisheryFish stock assessmentData deficient fisherySustainable fisheryCatch and effort data analysis |
| spellingShingle | Rajendran Abinaya Moosambikandy K. Sajeevan Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India Aquaculture and Fisheries Coastal tuna Kawakawa fishery Fish stock assessment Data deficient fishery Sustainable fishery Catch and effort data analysis |
| title | Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India |
| title_full | Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India |
| title_fullStr | Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India |
| title_full_unstemmed | Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India |
| title_short | Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of India |
| title_sort | stock status of kawakawa euthynnus affinis cantor 1849 fishery using surplus production model an assessment from coastal waters of tamil nadu bay of bengal southeast coast of india |
| topic | Coastal tuna Kawakawa fishery Fish stock assessment Data deficient fishery Sustainable fishery Catch and effort data analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2468550X23000886 |
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