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By-catch in Gillnet fisheries along Thoothukudi coast

Kumar:By-catch in Gillnet fisheries alo
Autor: Anirudh Kumar / Jitender Kumar Jakhar / Sunita Jakhar
Verfügbarkeit: nur noch 3 lieferbar
Artikelnummer: 828506
ISBN / EAN: 9783659574108

Verfügbarkeit: sofort lieferbar

39,90
Inkl. MwSt. , zzgl. Versandkosten

Produktbeschreibung

A study was conducted from May, 2010 to April 2011 to assess the bycatch of bottom set gillnets along eleven fish landing centres of Thoothukudi district. The bycatch was estimated from seven types of bottom set gills viz Crab net, Lobster net, Trammel nets, Ray nets, Chank nets, Maya valai and Mandal valai. Among the seven bottom set gillnets, Ray nets and Chank nets were found operated only in the south Coast of Thoothukudi district. Among the various types of nets studied, Lobster nets caught more bycatch (93.21%) while the Ray nets caught less bycatch (24.61%). The catch per unit effort was more for lobster nets (80.75 kg) from Vembar landing centre and less (0.57 kg) for Crab nets from Vellappatti landing centre. The disturbance to the scheduled species was found to be high by crab nets and less by Trammel nets. Lobster nets were found have poor selectivity while Ray nets was highly selective with least bycatch. Significant variation in the quantity of bycatch (P 0.01) could be observed with respect to different types of bottom set gillnets studied.

Zusatzinformation

Autor Verlag LAP Lambert Academic Publishing
ISBN / EAN 9783659574108 Bindung Taschenbuch

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