Substitution of polyamide multifilament by polyethylene twised monofilament in large mesh gill nets
Substitution of polyamide multifilament by polyethylene twised monofilament in large mesh gill nets
Date
2002
Authors
Saly, N.T.
Hridayanathan, C.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologis(India)
Abstract
Polyamide (PA) multifilament continues to be the material for gill nets for large pelagics
in Kerala despite its replacement by PA monofilament and polyethylene (PE) multifilament
in many other states of the country. The cost of the gear contributes significantly to the total
investment of the fishing unit viz., around 19% in the mechanised sector and 50% in the
motorised sector. Results of a study on replacement of costly PA multifilament by cheaper
PE without compromising on the production efficiency are discussed in the present
communication. Fishing trials using nets of PE of 1.25 mm dia in comparison to PA 210 dx6x3
(R 455 tex) showed no significant difference in catch and the species composition was similar
in both the nets. PE net was found to be cost effective than the PA net, the PE net costing
only 52.4% of the PA net. Results indicated that PE twisted monofilament of 1.25 mm dia
can be considered for replacement of PAR 455 tex in gill nets for seer and tuna.
Description
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Citation
Fish Technol. 39(2): 100-106