Effect of mesh size on selectivity of square mesh code ends.
Effect of mesh size on selectivity of square mesh code ends.
Date
2001
Authors
Kunjipalu, K.K.
Meenakumari, B.
Joseph Mathai, T.
Boopendranath, M.R.
Manoharadoss, R.S.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologis(India)
Abstract
The effect of mesh size on the selective escapement of length class of trawl resources
including nine fin fishes and three shell fishes was studied using 20, 25, 30 and 40 mm
square mesh codends. Comparatively more juveniles and sub adults were retained in 20
mm square mesh cod ends while 40 mm square mesh permitted escapement of many
commercially important groups such as penaeid prawns and squid. 30 mm square mesh
cod end has shown compromise size selection properties by providing escapement of most
of the juveniles while retaining bulk of economically important species groups. Selectivity
parameters and selection curves were determined in respect of twelve species selected for
the study.
Description
Keywords
Citation
Fish Technol. 38(1): 1-7