| 摘要 |
PCT No. PCT/DK86/00037 Sec. 371 Date Dec. 10, 1986 Sec. 102(e) Date Dec. 10, 1986 PCT Filed Apr. 11, 1986 PCT Pub. No. WO86/05946 PCT Pub. Date Oct. 23, 1986.To transfer fry from tanks in a barge to breeding cages immersed wholly or partly in water, use is made of a scraper consisting of a frame in which a wire net is stretched. The frame is journalled as to be pivotable about a preferably fixed axis from a vertical to a substantially horizontal position lifting fish to the level of the upper edge of the barge hull, where a hopper mounted to a hose is placed. The other end of the hose is passed down into a cage. Fish are flushed through the hose down into the cage by a water stream introduced to the hopper. Both the net frame and the hopper may be moved from one tank to another. The tank-defining part of the barge hull is preferably quater-circular in cross-section. |
