The Model Experiments on Fixed Nets for Fishing Salmons in Kamchatka
スポンサーリンク
概要
- 論文の詳細を見る
The original fixed nets, of which the models were made for study, are used in Kamchatka or fishing salmons. On the experiments two models of both 1/200 of the original nets, of which the net pieces are arranged as shown in Fig. 2 A and A', were made according to TAUTI'S principles of model net construction. It was known from the experiment, that the sinkers, fixing the net to the bottom slip and the nets float away, when the velocity of current excedes a critical value, which is, if converted into the original, 22/5 mile/hour. The form of model net ?? under the current in the prevailing directions at the fishing ground were sketched both from above and lateral sides. The sketches are reproduced in Figs. 4A (net A) and A' (net A'), in which the figures in each row from left to right show the form under the current of 0, 1/2, 5/8 and 1 mile/hour, if converted into original, and each of three rows from top to bottom, under the current parallel, 25° inward or 25° outward inclined to the shore.
著者
関連論文
- Immigration of Salmons to a Fishing Ground on the West Coast of Kamchatka in Relation to the Hydrographical Conditions
- The Model Experiments on Fixed Nets for Fishing Salmons in Kamchatka
- The Depth and the Distance form Shore of the Routes of Migration of Salmons
- The Shoreward Migration of Japanese King Crabs at a Fishing Ground in Western Kamtchatka