Ranching for resilience and sustainability: Enhancing the Yellow-foot clam fishery in Ashtamudi Lake

Gomathi, P and Anil, M K and Sasikumar, Geetha and Krishna Priya, P M and Shalini, O and Kingsly, H Jose and Dineshbabu, A P (2024) Ranching for resilience and sustainability: Enhancing the Yellow-foot clam fishery in Ashtamudi Lake. Marine Fisheries Information Service; Technical and Extension Series (262). pp. 36-37. ISSN 0254-380X

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Abstract

Captive broodstock maturation and hatchery seed production of Yellow-foot clam has been standardized in ICAR-CMFRI. Broodstock of Paphia malabarica collected from the Ashtamudi Lake matured under controlled hatchery environment. After two months of rearing in the hatchery, the clams spawned volitionally. Larvae were reared in FRP tanks with optimal water quality conditions (30-35 ppt salinity, 7.8-8.2 pH, and 28-31°C temperature). The larvae settled as spat on the 11th day post-hatch and were transferred to a micro-nursery system for further growth. After 50 days, the clam seeds reached a size of 3-5 mm and were oxygen-packed for transportation to the Ashtamudi Lake for ranching.

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