Air supplementing device for settleable fish culture net cage

Abstract

The invention discloses an air supplementing device for a settleable fish culture net cage. The air supplementing device comprises a net cage body and an air supplementing cover, wherein the air supplementing cover is arranged on a center column, the air supplementing cover is in an umbrella shape or a conical hopper shape, and an air cavity for storing air is formed in the air supplementing cover; an air supplementing main pipe is arranged on the air supplementing cover, and the upper end of the air supplementing main pipe is connected with an air pump through a hose; a bait main pipe is arranged on one side of the air supplementing main pipe, and the upper end of the bait main pipe is connected with bait through a hose; and a tray is arranged on the center stand column and arranged at the lower end of the bait main pipe. The air supplementing cover is arranged in the net cage body, the air supplementing main pipe and the bait main pipe are arranged on the air supplementing cover, theupper end of the air supplementing main pipe is connected with the air pump through the hose, and the lower portion of the air supplementing cover is inflated through the air supplementing main pipe,so that air supplementing is performed on a deep sea net cage; and the upper end of the bait main pipe is connected with the bait through the hose, the tray is arranged at the lower end of the bait main pipe and used for supporting the bait, and the bait main pipe is used for accurately feeding the bait into the net cage, so that bait waste is avoided.

Description

technical field [0001] The invention belongs to the technical field of aquaculture and marine resource development, and in particular relates to an air replenishing device for sinkable fish culture net cages. Background technique [0002] The negative effects of near-shore cage fish farming on the environment have aroused widespread concern. The development of marine fish farming from near-shore cages to offshore (deep sea) cages has become an inevitable choice for the sustainable development of mariculture. In order to utilize the cold water resources in the lower part of the ocean in summer, avoid harmful organisms of cultured fish or avoid harsh hydrological conditions, people often need to submerge fish cages in a certain water layer under the water in stages. However, sinking the cages underwater for a long time will affect the normal life and growth of some fishes. [0003] People's research on Atlantic salmon found that after the fish has been living underwater for a...

AI Technical Summary

Problems solved by technology

During deep-sea cultivation, the oxygen content near the water surface is increased by the rotation of the leaf fan. Since the oxygen content in the deep sea is lower than that near the water surface, the amount of oxygen generated by the rotation of the fan blade is small, which cannot meet the needs of large-scale aquaculture. And it does not have a bait feeding device, so the bait cannot be fed accurately, and it is easy to cause waste of bait

Images