© CMFRI
In a major step to address the alarming decline in short neck clam populations, the CMFRI has launched a stock enhancement programme involving the release of clam seeds into Ashtamudi Lake. Following the development of captive breeding protocols for this species, three million seeds of short neck clam (Paphia malabarica) - produced in the CMFRI Vizhinjam Regional Centre hatchery - were released into the lake in attempt to halt the population decline.
Short neck clam is a treasured resource in Ashtamudi Lake with significant economic and ecological importance. According to CMFRI estimates, recent annual catches have fallen by as much as 90 percent tonnes since the early 1990s. This clam species has substantial export potential, as international demand for clams continues to rise, offering significant economic opportunities for local communities.
Research suggests that the decline of clam populations in Ashtamudi Lake are linked to man-made pollution and the increasing prevalence of non-native invasive species, such as charru mussels. The impacts of climate change, including altered salinity and water temperature, may also contribute to declining clam populations.
Researchers at the CMFRI hope to use ranching as a sustainable solution to replenish the clam stocks, ensuring the continuity of this significant species. Aiming to ensure sustainability, support local fishermen and provide leverage for boosting export revenues, the initiative is part of the Pradhan Mantri Matsya Smpada Yojana (PMMSY) Blue Growth Project.
