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Growth, mortality and stock assessment of two perches moontail bull's eye Priacanthus hamrur (PerciformeslPricanthidae) and thomycheek grouper Epinephelus diacanthus (Perciformes/Serranidae) from Bombay waters

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Title Growth, mortality and stock assessment of two perches moontail bull's eye Priacanthus hamrur (PerciformeslPricanthidae) and thomycheek grouper Epinephelus diacanthus (Perciformes/Serranidae) from Bombay waters
 
Creator Chakraborty, S K
Vidyasagar, Kuber
 
Subject Perch fishes
Stock Assessment
Groupers
 
Description Based on the data collected from 1989-n the growth, mortality and stock assessment of P. hamrur
and E. diacanthus were calculated. The von Bertalanffy's growth functions worked out for P. hamrur
were as follows Lro=360 mm, K=O.64 per year and that of E. diacanthus were Lro=494 mm and K=O.59
per year. Based on these calculations the growth of P. hamrur at the end of I-IV years works out to be
as 171,260, 308 and 334 mm. The length attained by E. diacanthus at the end of I-IV years of its life
works out to 223, 345, 414 and 451 mm respectively. The mortality coefficients - Z, M and F were
worked out 2.24,1.13 and 1.11 for P. hamrur. The same for E. diacanthus was calculated as 1.74, 1.1
and 0.64 respectively. Stock assessment study shows that there is no decline in the catch at the present
rate of explOitation. However, even if the efforts are trebled, the increase in the catch will not be
proportionate and returns are not remunerative.
 
Date 1996
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7032/1/133-IJMS_1996.pdf
Chakraborty, S K and Vidyasagar, Kuber (1996) Growth, mortality and stock assessment of two perches moontail bull's eye Priacanthus hamrur (PerciformeslPricanthidae) and thomycheek grouper Epinephelus diacanthus (Perciformes/Serranidae) from Bombay waters. Indian Journal of Marine Sciences, 25. pp. 312-325.