On the growth, mortality and recruitment of the spiny lobster (Panulirus homarus) in Sri Lankan waters

Jayakody, D.S. (1993) On the growth, mortality and recruitment of the spiny lobster (Panulirus homarus) in Sri Lankan waters. Naga, the ICLARM Quarterly, 16(4), pp. 38-42.

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Abstract

Monthly length-frequency data of spiny lobster Panulirus homarus collected from the south coast of Sri Lanka during 1988-1990 were analyzed to estimate von Bertallanfy growth parameters. The asymptotic lengths estimated using Wetherall plots were 322 mm and 315 mm total length for the males and females, respectively. Using o' values of 3.53 for males and 3.61 for females, the growth constant (K) was estimated as 0.21 year super(1) and 0.27 year super(1) for the males and females, respectively. The estimates of natural and total mortality (M and Z) are 0.98 year super(1), 1.96 year super(1) for males and 0.92 year super(1), 1.54 year super(1) for females respectively. Recruitment appears to occur in two pulses per year.

Item Type: Article
Title: On the growth, mortality and recruitment of the spiny lobster (Panulirus homarus) in Sri Lankan waters
Personal Creator/Author:
CreatorsEmail
Jayakody, D.S.
Journal or Publication Title: Naga, the ICLARM Quarterly
Volume: 16
Number: 4
Page Range: pp. 38-42
Date: 1993
ISSN: 0116-290X
Issuing Agency: WorldFish Center
Uncontrolled Keywords: Growth; Mortality; Recruitment; Lobster fisheries; Fishery management; Statistical analysis; Sri Lanka; Panulirus homarus
Subjects: Fisheries
Item ID: 9254
Depositing User: Mr William Ko
Date Deposited: 30 Nov 2012 08:35
Last Modified: 30 Nov 2012 08:35
URI: http://aquaticcommons.org/id/eprint/9254

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