Understanding recent variations in the zero year-class entries of Indian oil sardine and its impact on the fisheries of Kerala
Year: 2025
Type: article
Abstract: The Indian oil sardine (IOS) fishery along the Kerala coast from 2021 to 2024 was assessed using an ecoregion approach, revealing a significant increase in recruitment in 2024 compared to previous years, and at varying scales.The ecosystem productivity indicators showed a stronger influence on recruitment dynamics than the biological indicator of spawning stock biomass.The relative contributions of micro-, pico-, and nanoplankton functional groups indicated linkages with the physio-biological dynamics of IOS and need further research.The present study highlights region-specific environment variability, especially during the prespawning and pre-recruitment periods, that needs to be adequately integrated into stock assessments and dynamic management frameworks.Development of species-specific, eco-physiological indicators for timely fisheries governance interventions to sustain the fishery of IOS under changing oceanographic conditions and supporting the development of short-term forecast models is recommended.
Source: Current Science
Institution: Central Marine Fisheries Research Institute
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
SDG: Life below water
Open Access status: diamond
OpenAlex ID: W4415039731
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