Assessment of marine fish stocks within India’s Exclusive Economic Zone: Status report 2022

Kumar, Rajan and Dash, Gyanaranjan and Muktha, M and Sasikumar, Geetha and Ganga, U and Kizhakudan, Shoba Joe and Chellappan, Anulekshmi and Bhendekar, S N and Sukumaran, Sandhya and Thomas, Sujitha and Varghese, Eldho and Abdussamad, E M and Josileen, Jose and Dash, Swatipriyanka Sen and Rahangdale, Shikha and Pillai, S Lakshmi and Remya, L and Akhilesh, K V and Chakraborty, Rekha D and Rajesh, K M and Najmudeen, T M and Kuriakose, Somy and Mini, K G and Purushottama, G B and Kavitha, M and Vidya, R and Nakhawa, A D and Vinothkumar, R and Roul, Subal Kumar and Mahesh, V and Wilson, Livi and Divipala, Indira and Jasmin, F and Azeez, P A and Surya, S and Koya, Mohammed and Manas, H M and Vase, Vinay Kumar and Rajkumar, M and Dineshbabu, A P and Sarada, P T and Venkatesan, V and Nair, Rekha J and Pradhan, Rajesh Kumar and Gomathi, P and Sunil Kumar, S Ali and Margaret Muthu Rathinam, A and Laxmilatha, P and Ghosh, Shubhadeep and Jayasankar, J and Gopalakrishnan, A (2024) Assessment of marine fish stocks within India’s Exclusive Economic Zone: Status report 2022. Indian Journal of Fisheries, 71 (1). pp. 1-11. ISSN 0970 - 6011

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Abstract

India is one of the major fishing nations in the Indian Ocean, with commercial marine fish landings in the country comprising of nearly 1000 species. A comprehensive and periodic assessment of the stocks is crucial for achieving the goals of sustainable fisheries harvest and management. The ICAR-Central Marine Fisheries Research Institute, Ministry of Agriculture and Farmers’ Welfare, Govt. of India, is mandated to monitor and assess the marine fisheries resources in the Indian EEZ. In the present study, 135 stocks across 70 species were assessed using monthly length-frequency data. The health status of the stock is projected based on a combination of indicators such as relative biomass or spawning stock biomass (B/Bmsy or SSB/SSB0) and relative fishing pressure (F/Fmsy) estimated using a standard length-based dynamic pool model (i.e., Thompson and Bell Model). Based on the comparison of estimated values of indicators against the thresholds, the stocks were classified as sustainable, overfishing, overfished and rebuilding. The study revealed that 91.1% of the assessed fish stocks have a healthy biomass level (sustainable stocks and those subjected to overfishing), 8.2% of stocks are overfished, whereas 0.7% are in the process of rebuilding.

Item Type: Article
Uncontrolled Keywords: Biology-based; Healthy stocks; Length-frequency; Stock assessment; Sustainable; Tropical
Subjects: Oceanography > Indian EEZ
Marine Fisheries > Fisheries Resources Assessment
Marine Fisheries > Fisheries Statistics
Marine Fisheries > Stock Assessment
Divisions: CMFRI-Kochi > Marine Capture > Fishery Resources Assessment, Economics and Extension Division
Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Fishery Resources Assessment, Economics and Extension Division
CMFRI-Kochi > Marine Capture > Fishery Resources Assessment, Economics and Extension Division
Subject Area > CMFRI-Kochi > Marine Capture > Fishery Resources Assessment, Economics and Extension Division
Depositing User: Arun Surendran
Date Deposited: 01 Apr 2024 10:54
Last Modified: 12 Jul 2024 05:23
URI: http://eprints.cmfri.org.in/id/eprint/18242

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