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Age and growth of Lactarius lactarius (Bloch & Schneider, 1801) from Karnataka, south-west coast of India

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Title Age and growth of Lactarius lactarius (Bloch & Schneider, 1801)
from Karnataka, south-west coast of India
Not Available
 
Creator Jayabalan,N
Zacharia,P U
 
Subject Age and growth
Lactarius lactarius
Karnataka
Recruitment pattern
 
Description Not Available
Age and growth of Lactarius lactarius was studied separately for males and females from the Karnataka coast
using monthly length composition data collected from three major fish landing centres viz., Mangalore, Malpe
and Karwar. The growth of L. lactarius was studied from length frequency data by ELEFAN I programme, and
also by modal progression analysis using Gulland and Holt (1959) model after separating the modes using
Bhattacharya (1967) method. The growth parameters estimated for males were: Lα = 240 mm, K = 1.01yr-1 and
t0 = -0.0151; for females: Lα = 285 mm, K = 0.91 yr-1 and t0 = -0.0183 and for unsexed fishes (juveniles, males and
females pooled) were: Lα = 294 mm, K = 0.84 yr-1 and t0 = -0.0215. The recruitment pattern showed two recruitment
pulses every year, the major one during March and the minor one during June-August. The von Bertalanffy growth
formula fitted to L. lactarius indicated the fish to attain a length of 168 mm at the end of 1 year, 240 mm at the end
of 2 years and 271 mm at the end of 3 years of its life. The estimated life span appears to be 3.57 years.
Not Available
 
Date 2021-09-16T04:34:55Z
2021-09-16T04:34:55Z
2010
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62583
 
Language English
 
Relation Not Available
 
Publisher CMFRI/ICAR