Development of super-Intensive land-based RAS for marine finfish farming

Anil, M K and Gomathi, P and Shalini, O and Krishnapriya, P M (2024) Development of super-Intensive land-based RAS for marine finfish farming. Marine Fisheries Information Service, Technical and Extension Series (260). pp. 7-10. ISSN 0254-380X

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Abstract

Around the world, most finfish mariculture production occurs within net cages. However, coastal net cage farming presents several significant drawbacks. More than 70% of the nitrogen provided as feed in these cages is lost into the open water, leading to environmental pollution. The widespread adoption of cage culture in coastal waters, particularly in backwaters and bays, inevitably results in substantial self-pollution. Cage farming also faces challenges related to parasitic and viral diseases and its vulnerability to natural disasters like high waves, strong winds, and floods, resulting in substantial crop losses. Globally, land-based Recirculating Aquaculture Systems (RAS) are gaining importance as an alternative method of mariculture, particularly for high-value finfish production. Land-based RAS offers numerous advantages, including the precise control of critical water quality parameters, efficient land and water utilisation, and maximised production. This production method is sustainable, environmentally friendly, and bio-secure. It provides flexibility in site selection and species cultivation, facilitates easy and complete harvesting, and allows year-round production planning. However, it is important to note that the high capital cost is a major obstacle to the widespread adoption of land-based RAS, which can only be overcome through intensive farming practices.

Item Type:	Article
Uncontrolled Keywords:	RAS Unit; Fish farming
Subjects:	Aquaculture > Farming/Culture Aquaculture Fishery Technology
Divisions:	CMFRI-Vizhinjam CMFRI-Kochi > Mariculture Division Subject Area > CMFRI > CMFRI-Kochi > Mariculture Division CMFRI-Kochi > Mariculture Division Subject Area > CMFRI-Kochi > Mariculture Division
Depositing User:	Arun Surendran
Date Deposited:	05 Nov 2024 05:42
Last Modified:	05 Nov 2024 05:42
URI:	http://eprints.cmfri.org.in/id/eprint/19020

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