Training manual on Marine Microalgae culture Techniques

Xavier, Biji and Ranjan, Ritesh and Megarajan, Sekhar and Loka, Jayasree and Kizhakudan, Joe K (2024) Training manual on Marine Microalgae culture Techniques. Manual. ICAR- Central Marine Fisheries Research Institute, Visakhapatnam.

Text CMFRI Training Manual Series No. 46_2024_Visakhapatnam.pdf Download (52MB)

Abstract

Aquaculture is one of the fast-growing industries and one of the bottlenecks is proper rearing of the early life stages of many farmed fish and invertebrate species. Most emerging species in marine aquaculture and aquarium industries have a sensitive and small-mouthed larval stage, and their larviculture is very challenging due to a lack of appropriate first-feeding protocols. The significant difficulty is the first feeding at the larval weaning stage. The young larvae have limited capacity of predation (detection and capture) due to its immature jaw, muscle, and optical developments. Moreover, the specific larval feeding behaviors and nutritional requirements should be considered, when selecting suitable first-feeding ingredients to achieve a successful hatchery production. Unlike formulated diets, motile and viable phytoplankton and zooplankton, provide more bioavailable nutrients and trigger higher predatory responses, and have been recognized as promising exogenous nutrients for marine larvae. The dietary planktons could live with the farmed larvae in the rearing system, and be ingested by the larvae whenever desired, are thus referred as live feeds. A live feed with the proper nutritional composition, constituting a suitable size range, and stimulating a feeding response is necessary to expand the number of species of marine finfish and shellfish produced. It is very essential to enhance diversification, mass production systems and innovation within live feed production programs to advance the fast-growing marine larviculture industry. In this training manual, various live feeds used in feeding finfish / shellfish larvae are discussed in detail with their culture methodologies. Visakhapatnam Regional Centre of ICAR - Central Marine Fisheries Research Institute has a long history of expertise in isolation and culture of live feed for use in aquaculture. The Centre has been providing stock cultures of marine microalgae to shrimp hatcheries along the east coast of India. The Centre receives umpteen number of requests for training on live feed production. It was therefore, felt a necessity to develop a trained manpower in the industry for carrying forward this technology, which is vital for the success of any finfish / shellfish hatchery. This training manual will serve as a ready reckoner for technicians in the hatchery for maintaining and multiplying quality live feed for use in larviculture. Consequently, the aquaculture technologies of live feed productions are a focus point worldwide and thus the training programmes gain significance.

Item Type:	Monograph (Manual)
Uncontrolled Keywords:	Algae; Microalgae; Algal culture
Subjects:	Aquaculture > Farming/Culture Aquaculture > Mariculture Aquaculture > Algal Culture Algae
Divisions:	CMFRI-Visakhapatnam
Depositing User:	Arun Surendran
Date Deposited:	09 Dec 2024 10:13
Last Modified:	09 Dec 2024 10:13
URI:	http://eprints.cmfri.org.in/id/eprint/19111

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