Induced type hydrobios collecting and water purifying device

Abstract

The invention discloses an induced type hydrobios collecting and water purifying device. The induced type hydrobios collecting and water purifying device comprises an induced type artificial fish spawning nest and a bottom biology collecting device which are connected integrally through an anchoring rope, wherein the induced type artificial fish spawning nest comprises an upper module, a lower module, a consolidation diatom attaching plate; the upper module comprises floating island modules, aquatic plates and an upper frame; the lower module comprises a lower frame, viscid egg attaching modules and viscid egg attaching matrix; the bottom biology collecting device comprises an upper housing and a lower housing, wherein the upper housing is a curved surface housing in the shape of a shell,and a plurality of circular holes are uniformly formed in the upper housing; and a gravel layer, fixed pebbles and movable pebbles are sequentially stuffed in the lower housing from bottom to top, anddiversion blades are respectively arranged at the rear end of the upper housing and the rear end of the lower housing. The device can realize induced collection of adherence fish eggs, adherence sunkfish eggs, consolidation diatom, and demersal animals, and besides, has the function of purifying water bodies.

Description

technical field [0001] The invention relates to the technical field of hydraulic engineering. More specifically, the invention relates to an induced aquatic organism collection and water body purification device. Background technique [0002] The construction of cascade hydropower dams has blocked the river basin, fragmented the river and turned it into a reservoir, which has brought about a series of water ecological environment problems, especially the major impact on aquatic organisms. At the same time, there are also factors such as overfishing, water environment pollution, and river sand mining, which lead to the loss or destruction of the habitat environment of aquatic organisms represented by fish, which has led to a sharp increase in the amount of aquatic biological resources in the past few decades. declining trend. Therefore, the investigation and monitoring of aquatic organisms represented by fish, the construction of aquatic organism habitats, and the restorati...

AI Technical Summary

Problems solved by technology

Due to the interference of wading engineering construction and reservoir water storage activities, the number of aquatic plants in the nearshore zone and waterfront zone of some natural river sections has decreased sharply, resulting in a serious shortage of spawning places for viscous eggs in the water environment, and the ecological environment has been affected. In addition, in the investigation and research of sticky fish eggs, sample collection and counting are often affected by the attachment carrier of fish eggs, and the assessment of its resources is not accurate enough

[0005] For some river sections with severe sand mining, large pebbles or boulders, and rocky bottom materials, existing collection methods such as Peterson dredgers or box dredgers are used when investigating and collecting benthic animals. The collection effect is often not ideal, and it is difficult to collect samples of benthic organisms

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