Marine Cage Farming

Suresh Babu, P P (2026) Marine Cage Farming. In: Training Manual on Marine Fish Hatchery Management and Culture. CMFRI Training Manual Series No.72/2026 . ICAR- Central Marine Fisheries Research Institute, Kochi, pp. 77-84.

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Abstract

Sea cage culture is the farming of fish in floating net enclosures that permit natural water exchange while providing a controlled rearing environment. Successful production depends on appropriate cage design, durable construction materials, efficient mooring systems, and sound management practices. Recognizing its potential, CMFRI initiated open-sea cage culture research in 2006–07 and developed indigenous HDPE cages suited to Indian conditions. Subsequent refinements led to economically viable 6 m diameter cages. With an estimated production potential of 3.2 million tons from just 1% of India’s inshore waters, sea cage farming offers a promising and sustainable livelihood option for coastal communities.

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