沿岸における小型刺網漁業とその資源-II : 磯建網漁業の漁場の特性について

概要

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In the present study the characteristics of the fishing grounds on the bottom gill-net fishery were discussed using the results of our test nets and those of commercial fishing from 1956 to 1959 as a part of the works which had been undertaken to clear the present states of coastal fisheries and the biological characteristics of their resources. For the porpose of this research the sea around Tomioka, Kumamoto Prefecture was divided into three fishing grounds-inner bay (Tomoe Bay), outer bay (Tomioka Bay) and open sea (Amakusa-nada) (Fig. 1). The results obtained from this study are as follows: 1) The outer bay is more similar to the open sea than the inner bay, and the inner bay different remarkably from the other grounds in character (Figs. 3, 4, 6 and 7). 2) The inner bay is characterized by Inegocia japonica, Gerres japonicas and Ditrema temmincki, and in the open sea Panulirns japonicus, Stephanolepis cirrhifer and Chrysophrys major are dominant, and the outer bay is represented by Stephanolepis cirrhifer, Girella punctata and Ditrema temmincki (Fig. 5). 3) The open sea is the largest of the three fishing grounds in the productivity and stability in the catches, and the inner bay is the smallest (Figs. 6, 7 and Table 1).
公益社団法人日本水産学会の論文