刺網のクジメに対する漁獲効率について

概要

論文の詳細を見る
An attempt was made to determine the catch efficiency of gillnet to Agrammus agrammus from the data on catch in the fishing experiment of gillnet, which was carried out in a sargassum bed of Maizuru Bay. Analyses of the data on catch gave 0.23-0.27 and 0.090 as the estimates of the catch efficiency of three nets to unmarked and marked fish in the daytime operation of one day, respectively. Here, the catch efficiency was defined as the probability that, in the exploitable area where the species had a chance of being trammeled by the nets, the species was trammeled by the nets in a certain duration of the operation. There was the time zone in which the species were frequently trammeled by the nets and it seemed that it corresponded to that of their active feeding. In addition, it was supposed that the exploitable area of a net was considerably small.
日本水産學會の論文