병어(Pampus argenteus) 자망의 망목선택성

Abstract

,the field experiments were carried out during June 27th to July 3rd, 2005 at the coastal area of Imja island.The experimental gill nets for silver promfret were used in two set, which one set was consisted of 12 sheets,and each set was connected alternatively four defferent sheets those were 141mm, 148mm, 155mm and164mm in mesh size. The analysis of mesh selectivity curve was done by Kitaharass method. The totalnumber of fishes caught by experimental fishing of gill nets for silver promfret was 1,409, and it wasconsisted of 1,022 silver promfrets(72.5%), 123 croakers(8.7%), 70 red tongue soles(5.0%), 67 bluecrabs(4.8%), 22 red seabreams(1.6%), and 105 other fishes(7.4%). The number of fishes caught by the meshsize was 244 at mesh 141mm(mean 6.8/sheet), 261 at mesh 148mm(mean 7.3/sheet), 295 at mesh155mm(mean 8.2/sheet) and 222 at mesh 164mm(mean 6.2/sheet). The body weight of fishes caught by themesh size was 102.1kg at mesh 141mm(mean 2.8kg/sheet), 112.9kg at mesh 148mm(mean 3.1kg/sheet),132.8kg at mesh 155mm(mean 3.7kg/sheet), and 100.4kg at mesh 164mm(mean 2.8kg/sheet). The value ofmaximum