A collapsible device for multiplication and release of fish and sea treasures and its application method

Abstract

Provided is a foldable fish and choice rare sea food proliferation and releasing device and a use method. The device comprises a three-dimensional box frame, a box cover movably covering the top of the box frame, a box bottom plate movably covering the bottom of the box frame, a releasing rope, a porous bait structure and a recycling rope; the box frame can be folded; the box bottom plate is rotationally connected to the bottom of the box frame, the releasing rope is arranged at the free end of the box bottom plate, and when the releasing rope is lifted upwards to be tightened, the box bottom plate covers the bottom of the box frame; when the releasing rope is loosened, the free end of the box bottom plate is overturned downwards, and an opening formed in the bottom of the box frame is communicated with the outside; the porous bait structure allowing choice rare sea food fry to perch is independently and separately arranged with the box frame and used for fixedly arranging the recycling rope which recycles the whole device to the top of the box frame after releasing. The device integrates fish fry and the choice rare sea food fry into a whole, the fry loss rate is decreased, and meanwhile the protective effect on the fry can be achieved; the fry can be released to the specified sea area to the maximum extent.

Description

Technical field [0001] The invention relates to the field of fishery proliferation and release, in particular to a foldable fish and marine treasure release device. Background technique [0002] Marine environmental pollution and overfishing have caused the continuous decline of fishery resources. Artificial enhancement and release has developed from traditional fishery enhancement to an important and effective means for the restoration of aquatic biological resources, which is of great significance to the restoration of fishery resources and the improvement of fishery production and quality. The release method is one of the main factors affecting the effect of multiplication and release, and it has an important impact on the survival rate and dispersal rate of released seedlings. [0003] There are currently three main release methods in my country, one is direct spraying from the sea, the other is ship-borne release devices, and the third is artificial diving. Among them, the di...

AI Technical Summary

Problems solved by technology

Among them, the direct splashing on the sea surface causes relatively high physical damage to the seedlings, and the dispersion rate and mortality rate of the seedlings are high; the release of the ship-borne release device is mainly carried out on the sea surface through the release device installed on the release ship, which effectively reduces the risk of seedlings. A kind of physical damage suffered during the release process, but it is difficult to achieve the effect of fixed-point positioning release, the loss rate and mortality rate are high, and the release device takes up a lot of space and is inconvenient to carry; while the main target of artificial diving release is marine treasures , the accuracy of fixed-point release is high, which can effectively reduce the mortality and loss rate of seedlings, but the cost of release is high, and long-term underwater operations will cause great physical load to divers

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