定置網の漁獲多様性と投棄に関する一考察

概要

論文の詳細を見る
In set-net fishery, generally many species (including non-commercial species) are caught but with only a small number for each species. We can, therefore, describe that the set-net catch multi-species with a small quantity for each species. The catch diversity is reflected in the biological process such as distribution or behavioral pattern of species near the set-net. Generally, both the quantity of catch and its composition are closely related with each other. For effective management of coastal resources, it is necessary to clarify the relationship between the quantity and discards problem of this fishery. The data used in the analysis represent the daily total catch from set-net operated in Chiba and Kagoshima prefecture during 1996, 1999 and 2000 fishing period. Although there are differences in the fishing ground, results suggest that the diversity of catch species in the area was closely related with the amount of landing, which is therefore an important factor in the discards problems of set-net fishery.
鹿児島大学の論文
2007-12-25