Frame structure of collecting net for bottom-layer organisms in seamounts area

Abstract

The invention relates to a frame structure of a collecting net for bottom-layer organisms in a seamounts area. The frame structure of the collecting net for the bottom-layer organisms in the seamountsarea comprises a collecting net frame, wherein the collecting net frame is of a groove-shaped structure and comprises two side frames; the side frames are used as supporting edges of the collecting net frame; the front end of each side frame is arc-shaped; the front end of each side frame and the bottom surface of the side frame form an arc-shaped surface in smooth transition; the edges of the corners of the rear ends of the side frames are rounded; reinforcing plates are arranged between an upper plate and a lower plate of each side frame; the two side frames are connected by three connecting plates; a net opening upper steel support is also arranged between the two side frames; a net opening side steel support is also arranged between the upper steel plate and the lower steel plate of each side frame; the net opening upper steel support and the net opening side steel supports form a U-shaped frame; and the U-shaped frame is positioned at the front end of the collecting net frame. The frame structure of the collecting net for the bottom-layer organisms in the seamounts area has the advantages that the contact area between the collecting net and the seabed is reduced by the two side frames, obstacle crossing is facilitated, the success rate of bottom-layer organism collection is improved, the frame structure of the collecting net for the bottom-layer organisms in the seamountsarea adapts to sampling of the bottom-layer organisms in different seabed sediment environments, and the sediment environments are well protected.

Description

technical field [0001] The invention relates to a frame structure of bottom biological collection net in marine biological resources investigation technology, in particular to a collection net frame structure of bottom biological resources in seamounts. Background technique [0002] With the continuous deepening of the study on the characteristics of seamount ecosystems, it is urgent to strengthen the investigation of seamount biological resources, analyze the composition, abundance and biomass of seamount bottom biological species, and provide basic data and scientific basis for supporting the rational development of my country's deep-sea resources in the future. [0003] At present, dredgers, Alfred trawls, bottom trawls, manned deep submersibles, and unmanned deep submersibles are usually used when collecting marine bottom organisms. But the mud picker is only suitable for the collection of miniature and small organisms. Sampling and operation methods relying on platform...

AI Technical Summary

Problems solved by technology

However, when sampling bottom organisms in the seamount area with complex seabed topography, the mouth of the Ashi trawling net is a frame structure, which has a wide contact area with the seabed. On the other hand, it is easy to cause the net gear to be hooked to the reef, causing damage or loss of the net and other accidents, affecting the normal investigation

[0004] The substrate environment and biological communities in seamounts are complex. Due to the lack of professional sampling and collection nets in the sampling survey of bottom biological resources in seamounts, it is impossible to effectively collect biological samples at the bottom of seamounts.

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