A Study of Danish Seine by Means of Recording the Height of Entrance and the Direction of Ground Rope

Abstract

Both the records of the height of net-entrance and the direction of ground rope against its moving course were treated with reference to the fishing reports and the following two informations were given:
(1) The net thrown overboard goes down to the bottom, 51-61m deep, in 3-3.5min. (Table 1 and 5)
(2) Reduction of the wing-spread of net is more remarkable in parellel towing of 2-6.5min than in approaching each other of 8.5-13min. (Table 3, 4 and Fig 6)