Antarctic krill sustainable fishing auxiliary system and its pumping device

Abstract

The invention relates to an auxiliary system for catching euphausia suprba, and specifically relates to an euphausia suprba sustainable catching auxiliary system and a pumping device thereof, and belongs to the technical field of euphausia suprba catching. The euphausia suprba sustainable catching auxiliary system is characterized in that a shrimping trawlnet is arranged on the side surface of a boat, and a fish bag position of the tail of the trawlnet is provided with a pumping device. The pumping device is connected with a tube coiling machine on a stern. The tube coiling machine is connected with a shrimp-water separator. Hydraulic power of the pumping device is provided by a pump station on the stern. The pumping device comprises a shrimp suction pump (6). The suction inlet (3) of the shrimp suction pump (6) is provided with a pump fish bag joint (4). The pump fish bag joint (4) is uniformly connected with the fish bag through a plurality of uniformly distributed hasps, so the joint uniformly receives tension of the fish bag. The periphery of the shrimp suction pump (6) is fixedly connected with a floater (1). The floater (1) provides buoyancy, and cooperates with a hoisting device, to make the pumping device operate at any depth underwater.

Description

technical field [0001] The invention relates to an auxiliary system for Antarctic shrimp fishing, in particular to an auxiliary system for continuous fishing of Antarctic krill and a pumping device thereof, belonging to the technical field of Antarctic shrimp fishing. Background technique [0002] Global marine fishery resources have generally declined. Antarctic krill, as a marine organism that has only begun to be developed in Antarctic waters, has abundant reserves, nutritional value and market are gradually being developed. According to statistics, it is conservatively estimated that the total reserves of Antarctic krill resources can reach 2.5×108-6×108 tons, and its catchable amount is about the total output of the current global fishery. Under the background that fishery resources are depleting day by day and countries are vigorously developing marine fishery economy, the development of Antarctic krill resources is of great significance. [0003] At present, my count...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the existing Antarctic krill fishing industry, the trawl needs to be lowered from the stern deck, and the operation of lifting and lowering the trawl needs to be carried out more frequently, so that the bottom krill in the bag net is seriously squeezed , the quality of shrimp is low; at the same time, the sustainability of shrimp fishing is poor, the efficiency is low, and the labor intensity is also high

Images