2013 Volume 53 Issue 3 Pages 69-94
The environmental problem of Lake Biwa attracted attention from the latter half of the rapid economic growth period. The fisherman who watched the history of Lake Biwa and a daily change should be paid more attention in thinking about the environment of Lake Biwa.
The fish catches in Lake Biwa show a tendency to decrease. When an environmental problem attracted attention greatly, the fishery was relatively calm decrease.
The change of Lake Biwa understands in according to a fishing port. The life of the lakefront became convenient as a result. There was the effect for the securing of aquatic resources for irrigation. However, it is necessary to examine influence on fishery closely.