Standardization of Mesh Size of Gill Nets for the Commercial Exploitation of Kawakawa, Euthynnus affinis (Cantor) in Thoothukkudi Coastal Waters, Southeast coast of India
Standardization of Mesh Size of Gill Nets for the Commercial Exploitation of Kawakawa, Euthynnus affinis (Cantor) in Thoothukkudi Coastal Waters, Southeast coast of India
Date
2002
Authors
Jude, D
Neethiselvan, N
Gopalakrishnan, P
Sugumar, G
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Euthynnus affinis forms notable fishery in Thoothukkudi coastal waters with peak season
from June to September. Euthynnus affinis is captured in small meshed gillnets popularly
called 'PODIVALAI' with mesh size ranging from 60 mm to 115 mm. The present study
deals with the standardization of mesh size to capture the commercially significant length
group (476-600 mm) of E. affinis and its enmeshing pattern in gillnets with three different
mesh sizes. The optimum mesh size for the commercial exploitation of £. affinis in
Thoothukkudy coastal waters is found to be 104.2 mm. Further, the study recommends to
discourage the use of gill net with 50 mm mesh size for the capture of E. affinis as this net
captures the juveniles of £. affinis.
Description
Keywords
Euthynnus affinis, optimum mesh size, length at first maturity, gill nets
Citation
Fishery Techn 39(2):107-113