Artificial fish nest for fishes capable of laying viscous eggs and manufacturing method of artificial fish nest

Abstract

The invention discloses an artificial fish nest for fishes capable of laying viscous eggs and a manufacturing method of the artificial fish nest. The artificial fish nest comprises a conical artificial fish nest shell, a fish nest frame, an artificial fish nest base, a non-slip mat, a baffle, a threaded column, a first self-locking nut, a threaded hole, a second self-locking nut, a fixing frame, an elastic piece, a rotating shaft, rotating balls, a rotating hole, a rotating rod, a fixing rod, a compression spring and a rotating bolt. The artificial fish nest base is bonded to the bottom of theconical artificial fish nest shell; the fixing frame is welded to the top of the conical artificial fish nest shell, and the top of the fixing frame is sleeved with the threaded column. According tothe artificial fish nest for the fishes capable of laying the viscous eggs and the manufacturing method of the artificial fish nest, assembly type installation and manufacturing are adopted, a user can carry and store the artificial fish nest conveniently, the water area where the artificial fish nest is located can be fully utilized, and meanwhile the functions of egg laying, foraging, inhabiting, sheltering and the like are achieved; the angle of the fish nest frame can be freely adjusted to adapt to different regions, and incapability of mounting and fixing due to the angle of the fish nestframe is avoided.

Description

technical field [0001] The invention relates to the technical field of habitat restoration for sticky egg-laying fish, in particular to an artificial fish nest for sticky egg-laying fish and a manufacturing method thereof. Background technique [0002] With the economic development of the surrounding areas of the lake area, industrial sewage, domestic sewage and agricultural wastewater are injected into the lake area, and the long-term accumulation leads to the destruction of aquatic vascular plants in the lake area and the outbreak of algae, which in turn leads to varying degrees of eutrophication in the lakes, especially It is a closed lake. During this process, due to the gradual reduction of attachments and the decrease of water transparency, the normal reproduction of sticky spawning fish is seriously affected, and the proportion of sticky egg-laying adult fish in the catch is also obvious. Decline, according to the biology and ecology of fish reproduction, more than 60...

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Problems solved by technology

[0002] With the economic development of the surrounding areas of the lake area, industrial sewage, domestic sewage and agricultural wastewater are injected into the lake area, and the long-term accumulation leads to the destruction of aquatic vascular plants in the lake area and the outbreak of algae, which in turn leads to varying degrees of eutrophication in the lakes, especially It is a closed lake. During this process, due to the gradual reduction of attachments and the decrease of water transparency, the normal reproduction of sticky spawning fish is seriously affected, and the proportion of sticky egg-laying adult fish in the catch is also obvious. Decline, according to the biology and ecology of fish reproduction, more than 60% of freshwater fish produce sticky eggs, which can rely on artificial fish nests to proliferate, and more than 80% of fry rely on artificial fish nests for refuge. Therefore, artificial fish nests proliferate Good effect, high multiplication efficiency, no potential germplasm pollution and other characteristics will become another important way for resource multiplication. However, at present, these artificial fish nests have complex structures, are inconvenient to manufacture or cannot make full use of the waters where they are located, and cannot simultaneously achieve spawning , foraging, habitat and shelter functions; for these defects, it is necessary to design a kind of artificial fish nest and production method of sticky egg fish

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