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Fishery and Exploitation of Malabar Grouper, Epinephelus malabaricus (Bloch & Schneider 1801) from Andaman Islands

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Title Fishery and Exploitation of Malabar Grouper, Epinephelus malabaricus (Bloch & Schneider 1801) from Andaman Islands
 
Creator R. Kiruba Sankar
S. Dam Roy
Grinson George
Kamal Sarma
P. Krishnan
S. Ram Kumar
M. Kaliyamoorthy
M.P. Goutham Bharathi
 
Subject Population dynamics
Fishery
Andaman and Nicobar Islands
 
Description Not Available
The fishery and population dynamics of groupers from Andaman Islands were studied from Jan 2010 to Dec
2011 with a special emphasis on Malabar grouper, Epinephelus malabaricus (Bloch & Schneider 1801). The average annual catch of Malabar grouper was 1,296 tonnes contributing to 21.6% of annual grouper landings. Length-weight relationship of Malabar grouper showed that growth was allometric (b=2.96) and relative condition factor (Kn) was 1 and the growth parameters viz., L∞, K and t0 were 124.60 cm, 0.80 and -0.05 respectively. The recruitment pattern was unimodal with one major peak during April to July throughout the study period. The natural mortality (M), fishing mortality (F) and total mortality (Z) were 1.05, 1.48 and 2.53 respectively and exploitation rate (E) was 0.58. The M/K ratio (1.31) was found to be well within the normal range of 1to 2.5. Catch per unit effort varied from 4 to16.5 kg.h-1. The maximum sustainable yield (MSY) was 1,107 tonnes which was lower than the average annual catch (1,296 tonnes), indicating over exploitation. The current study calls for further research in identifying the grouper fishing and spawning aggregation grounds and introduce measures for reducing fishing efforts with input and output controls to sustain the Malabar grouper fishery in Andaman waters.
Not Available
 
Date 2020-02-19T11:23:00Z
2020-02-19T11:23:00Z
2013-09-14
 
Type Research Paper
 
Identifier Not Available
0116-6514r
http://krishi.icar.gov.in/jspui/handle/123456789/32108
 
Language English
 
Relation Not Available;
 
Publisher Asian Fisheries Society