Gonad staging for tropical marine finfishes–Good practices and procedures

Ganga, U and Muktha, M and Dash, Swatipriyanka Sen and Rahangdale, Shikha and Wilson, Livi and Rajesh, K M and Purushottama, G B and Mahesh, V and Thomas, Sujitha and Ghosh, Shubhadeep and Kizhakudan, Shoba Joe (2023) Gonad staging for tropical marine finfishes–Good practices and procedures. Marine Fisheries Information Service, Technical and Extension Series (257). pp. 18-24. ISSN 0254-380X

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Abstract

Studies on fish reproduction are important as they are related to the regeneration and productivity of the fish populations. The long-term as well as short-term implications of knowledge base on fish reproductive biology for fisheries management, conservation and stock sustainability is increasingly recognized as also the need for collecting such data of various marine fishes with diverse reproductive traits and strategies. In wild capture fisheries information on fish reproduction is crucial in stock assessment exercises and fisheries management decisions that follow. Determining species-specific legal sizes of fish to prevent recruitment (caused by catching too many older fish) or growth (caused by catching too many juvenile fishes) overfishing; seasonal fishing regulations to protect fish spawners, estimating the spawning stock biomass and egg production potential to forecast fisheries production and determine catch limits, if necessary are common approaches to ensure sustainability. Fish breeding programmes in hatcheries also require information on various aspects of reproductive biology of concerned species, as it is related to sourcing of brooders as well as development of a captive broodstock. In all these cases, a simple, consistently used terminology for the various development stages of the fish gonads is essential for comparisons and validation of results across labs and timelines

Item Type:	Article
Uncontrolled Keywords:	Gonad staging; Finfish
Subjects:	Fish and Fisheries > Finfish Fish and Fisheries > Fish biology
Divisions:	CMFRI-Kochi > Marine Capture > Finfish Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Finfish Fisheries Division CMFRI-Kochi > Marine Capture > Finfish Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Finfish Fisheries Division
Depositing User:	Arun Surendran
Date Deposited:	27 Mar 2024 08:47
Last Modified:	27 Mar 2024 08:47
URI:	http://eprints.cmfri.org.in/id/eprint/18231

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