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Mytella strigata: Emerging biofouling concern for coastal cage farmers along Kerala coast
(Fishtech Reporter, 2021) N, Manju Lekshmi; Lekshmi, Manju; S, Chinnadurai; P, Muhamed Ashraf; Edwin, Leela
The fishery sector in India provides livelihood support to14.49 million people participating in main or subsidiary activity (DADF, 2014). The marine capture fishery in the country is at plateau for the last two decades. Aquaculture is considered as a viable and rapidly growing fishery sector in India with an annual growth rate of over 7% which augments fish production as well as ensures livelihood. The increased demand for high value fish has led to large scale cage culture sponsored by government agencies in the coastal waters. The cage culture technology has been adopted at several locations along the Indian coast for all promising species, which helped to advance the design and feasibility of the cages (Aswathy & Imelda, 2020). In aquaculture cages, structure and stability play a critical role and in India high-density polyethylene (HDPE) is the commonly used netting material for cages. The netting keeps the fish in a closed structure and the mesh size of the cage guarantees the water movement. Proper water flow in cages enhances the water quality, reduces stress, improves feed conversion and reduces the mortality of cultured fish.