Fixation type automatic live fish gathering and catching device used for large water surface culturing

Abstract

The invention discloses a fixation type automatic live fish gathering and catching device used for large water surface culturing. The fixation type automatic live fish gathering and catching device comprises a fish gathering box, a center stand column, a net, a bait throwing system and a net expanding system. The center stand column is arranged in a culturing water region, the upper end of the center stand column penetrates out of the water surface, the fish gathering box is a box with an opening in the top and is provided with one-way channels through which live fishes enter the box, the fish gathering box is installed on the center stand column, the lower portion of the fish gathering box is soaked in water, the upper portion of the fish gathering box is located above the water surface, the net is provided with a center through hole, and the center stand column is sleeved with the center through hole in the net. The bait throwing system can throw baits into the water region where the net is located, and the net expanding system can drive the net to ascend or descend along the center stand column. The baits can be thrown through the bait throwing system so that the live fishes can enter the water region where the net is located; the net ascends through the net expanding system to force the live fishes to enter the fish gathering box through the one-way channels, the live fishes are gathered and caught, and the fixation type automatic live fish gathering and catching device is suitable for gathering and catching the cultured fishes on the large water surface in a quantitative mode, and guarantees the survival rate of the gathered and caught fishes.

Description

technical field [0001] The invention relates to a fixed-type live fish automatic collecting and catching fish device for large water surface cultivation. Background technique [0002] In recent years, due to a large number of irregular discharges of industrial and domestic sewage, and the use of large inputs (feeds, medicines, etc.) that practitioners continue to pursue high yields, the ecological environment of fish farming waters in different places has been damaged, and the production of farmed fish products has been severely damaged. Quality has a huge negative impact. With the improvement of people's living standards, higher requirements have been placed on the quality of farmed fish, and some "wild-like" fish farming methods on large water surfaces have emerged as the times require. The large water surface is conducive to the growth of farmed fish due to its wide water area and good water exchange conditions. Less bait and input, and the long-growing period is easy to...

AI Technical Summary

Problems solved by technology

The large water surface is conducive to the growth of farmed fish due to its wide water area and good water exchange conditions. Less bait and input, and the long-growing period is easy to improve the size and quality of farmed fish, but the wide water surface is not conducive to the collection of farmed fish. fish cause certain difficulties

[0003] At present, the method to solve the above-mentioned harvesting problem is to manually carry out small-scale purse seine nets to collect fish, or to catch fish with gillnets, but the former requires more manpower and the amount of fish caught is difficult to control, while the latter takes a long time. Moreover, the process of decomposing fish will also damage the cultured fish to a certain extent, and the ability to keep alive is poor.

Under the existing conditions, artificial purse seine or gillnet capture has the following disadvantages: high labor intensity, long operation time, difficult control of the amount of fish caught, and excessive fish collection time or decomposing fish will cause experience greater damage

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