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Age determination in fishes using hard parts: A practical handbook

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Relation https://eprints.cmfri.org.in/13958/
 
Title Age determination in fishes using hard parts: A practical handbook
 
Creator Abdussamad, E M
Mini, K G
Sasikumar, Geetha
Chakraborty, Rekha D
Retheesh, T B
Dipti, N V
Mohammed, Abbas A
Sajikumar, K K
Akhil, A R
Prakasan, D
 
Subject CMFRI Books
Fishery Biology
 
Description Fisheries research is aimed at developing strategies for managing the resources for
sustainability. Stock assessment is the tool employed in the determination of resources/
stock health status based on which management strategies are decided. Information on
age of fishes is used in fish stock assessment models for the estimation of recruitment,
growth and mortality parameters, which plays a fundamental role in the assessment of
commercial marine fish resources. The conventional techniques used for estimating age
of fishes involve tracing of modal progressions of length groups in the population through
time. Age and related estimates for the same species by different workers with the help
of the length frequency method has been found to be highly subjective. This necessitated
validation of age estimates obtained by conventional means using a robust and dependable
method. Findings on the formation of marks on the animal’s hard parts (calcified
structures) on a regular and sometimes annual basis, formed the basis for the use of
these structures for precise age determination in fishes. Recently, age information derived
from calcified structures are in use for validating the age estimate obtained from other
methods. The number of age validation studies has increased over the last several years
following standardization and simplification of hard parts based ageing process.
Considering the importance of this technique the process involved were compiled in this
book for the benefit of researchers.
 
Publisher ICAR - Central Marine Fisheries Research Institute
 
Date 2019
 
Type Book
PeerReviewed
 
Format text
 
Language en
 
Identifier https://eprints.cmfri.org.in/13958/1/Age%20determination%20in%20fishes%20using%20hard%20parts.pdf
Abdussamad, E M and Mini, K G and Sasikumar, Geetha and Chakraborty, Rekha D and Retheesh, T B and Dipti, N V and Mohammed, Abbas A and Sajikumar, K K and Akhil, A R and Prakasan, D (2019) Age determination in fishes using hard parts: A practical handbook. ICAR - Central Marine Fisheries Research Institute, Kochi. ISBN 978-93-82263-30-2