Kochi, Oct 13 (NationPress) The ICAR-Central Marine Fisheries Research Institute (CMFRI) has urged fishers to follow sustainable harvesting practices and respect the Minimum Legal Size (MLS) of 10 cm for the Indian Oil Sardine, especially after a remarkable increase in juvenile sardine populations along the Kerala coast.

The CMFRI stressed that adherence to MLS is vital for protecting both the livelihoods of coastal communities and the long-term viability of the sardine fishery, which serves as a crucial source of protein and income.

According to a recent CMFRI study, there was an astonishing rise in sardine recruitment in 2024, marking the highest level since 2020.

This growth has been bolstered by favorable rainfall patterns and monsoon-driven upwelling, which have enriched coastal waters with nutrients and increased microplankton availability, providing abundant food for young sardines.

However, this increase has also intensified competition among recruits, leading to reduced weight gain for zero-year-class fish.

In response to common misconceptions about the study, CMFRI Director Dr. Grinson George clarified: "Our findings do not suggest that juvenile sardines will not mature further. Fishing for juveniles should be avoided at all costs. Protecting young fish is crucial for ensuring the long-term sustainability of the sardine fishery and the livelihood security of fishing communities."

The institute recommends a regulated harvest that targets only fish above the MLS.

Dr. George stated: "While coastal waters continue to be productive and recruitment remains high, effective exploitation should be confined to fish above the MLS to ensure sustainability."

CMFRI Principal Scientist Dr. U. Ganga added: "The sardine fishery is particularly sensitive to environmental changes, leading to typical ‘boom and bust’ cycles. Preventing juvenile fishing and adhering to sustainable practices are essential to reduce the risk of future downturns in this critical coastal resource."

CMFRI’s advisory highlights the significance of sustainable fishing practices in maintaining the economic and ecological value of the Indian Oil Sardine, which is a cornerstone of Kerala’s small-scale fisheries sector.

Compliance with the MLS not only aids in the recovery of sardine populations but also ensures the long-term resilience of coastal livelihoods and food security in the region.