Broodstock management of marine fish in RAS Tanks

Ambarish, Gop P and Ranjan, Ritesh and Santhosh, B and Surya, S and Anil, M K (2024) Broodstock management of marine fish in RAS Tanks. In: Training Manual on Fisheries Management Practices and Techniques. CMFRI Training Manual Series No. 43/2024 . ICAR- Central Marine Fisheries Research Institute, Kochi, pp. 154-161.

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Abstract

Marine fishes maintained in captive conditions are often susceptible to diseases due to accumulation of ammonia in water, necessitating effective disease prevention measures. In most land-based broodstock development systems, a flow-through mechanism is employed, with a 200-300% water exchange rate to maintain the various physicochemical parameters of water quality. This approach incurs substantial costs associated with water procurement and exposes the broodstock to fluctuating water quality, as well as various parasites and microbial pathogens. These factors can delay or impede broodstock maturation and breeding. Consequently, there is a growing emphasis on completing the entire production cycle of commercially important fish within recirculating aquaculture systems (RAS). RAS address the challenges of sourcing live broodstock from the wild, mitigating high costs, ensuring biosecurity, and reducing the impact on marine ecosystems. Recirculating Aquaculture Systems (RAS) offer an optimal platform for the precise manipulation of environmental parameters critical to maturation processes, including temperature, photoperiod, nutrition and various water quality metrics.

Item Type:	Book Section
Uncontrolled Keywords:	Marine fish
Subjects:	Aquaculture > Farming/Culture Fish and Fisheries > Fish breeding Aquaculture Marine Fisheries > Fisheries Management Aquaculture > Fisheries Management
Divisions:	CMFRI-Kochi > Mariculture Division Subject Area > CMFRI > CMFRI-Kochi > Mariculture Division CMFRI-Kochi > Mariculture Division Subject Area > CMFRI-Kochi > Mariculture Division CMFRI-Vizhinjam
Depositing User:	Arun Surendran
Date Deposited:	09 Oct 2024 08:05
Last Modified:	09 Oct 2024 08:05
URI:	http://eprints.cmfri.org.in/id/eprint/18929

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