Up-flow type fish resource maintenance reef

Abstract

The present invention discloses an up-flow type fish resource maintenance reef. The reef comprises an outer shell; the cross section of the outer shell is square; the bottoms of four side plates of the outer shell are provided with flow passing holes; the center of the bottom of the outer shell is provided with a regular square pyramid frustum; the outer shell is also internally provided with an inner shell with the same square cross section; the central axis of the inner shell coincides with that of the outer shell; the inner shell and the outer shell are connected through four connecting plates; the connecting plates are distributed in the diagonal direction of the outer shell; the inner shell is internally provided with multiple layers of uniformly distributed first net sheets; the meshsizes of the multiple net sheets are sequentially increased from bottom to top; a second net sheet is further arranged between the inner shell and the outer shell; the second net sheet is provided with a bolting silk net bag; the bolting silk net bag is internally provided with blocky nutritive salt; and a plurality of avoidance chambers are distributed in the outer sides of the four side platesof the outer shell in an array manner.

Description

technical field [0001] The invention relates to the field of marine biological multiplication and breeding, in particular to an upwelling fish resource conservation reef. Background technique [0002] Artificial fish reefs are structures artificially set up in the sea. The purpose is to improve the ecological environment of the sea area, create a good environment for marine organisms to inhabit, and provide places for fish to reproduce, grow, feed and shelter enemies, so as to achieve protection, multiplication and The purpose of increasing catches. At present, the construction of artificial reefs has been widely carried out at home and abroad, and the restoration of offshore marine habitats and fisheries has been carried out, and good results have been achieved. The structure of traditional artificial reefs is relatively simple, it can provide relatively little shelter space, and the surface area for algae to attach is relatively small, so the effect of protection and prol...

AI Technical Summary

Problems solved by technology

The structure of traditional artificial reefs is relatively simple, and the shelter space they can provide is relatively small, and the surface area for algae to attach is relatively small, so the effect of protection and proliferation is not obvious, and traditional fish reefs can provide The upwelling effect is relatively poor, and it is difficult to provide sufficient nutrients for the surrounding sea area

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