Buoyancy-lifting-type marine benthos trapping device

Abstract

The invention discloses a buoyancy-lifting-type marine benthos trapping device which comprises a float, a buoyancy-lifting airbag and a trapping equipment, wherein the float is communicated with the upper part of the buoyancy-lifting airbag through an aeration conduit; the trapping equipment is arranged below the buoyancy-lifting airbag; the trapping equipment comprises an anti-escape net ring, a trapper, a collecting net bag and a collecting bag; the buoyancy-lifting airbag is fixedly connected with the ring at the upper end of the anti-escape net ring through a drawing rope; the anti-escape net ring is cylinder-shaped; two ends of the anti-escape net ring are opened; rings are arranged at the two ends of the anti-escape net ring; the trapper is arranged inside the anti-escape net ring; the outer edge of the lower bottom surface of the trapper is fixedly connected with the ring at the lower end of the anti-escape net ring; the collecting net bag is funnel-shaped, is arranged below the trapper and is fixedly connected with the outer edge of the lower bottom surface of the trapper; the collecting bag is cylinder-shaped; one end of the collecting bag is opened; the other end of the collecting bag is sealed; the opened end of the collecting bag is overlapped and is fixedly connected with the bottom of the collecting net bag; and a tying rope is arranged at the sealed end of the collecting bag. The buoyancy-lifting-type marine benthos trapping device has the characteristics of fixed sampling sites, various sampling objects and the like.

Description

technical field [0001] The invention belongs to the technical field of marine biological resources investigation equipment, and relates to a buoyant trapping device for marine benthic organisms, in particular to a buoyant trapping device suitable for investigating marine benthic biological resources. Background technique [0002] The investigation of marine benthic biological resources is an important part of marine ecological research, and biological samples are usually collected by bottom trawling and sediment collection. The traditional method is convenient and quick, but it is often limited by conditions such as the type of seabed substrate and the characteristics of benthic organisms. For example, the bottom trawling method cannot be used in reef areas, and the method of collecting sediment is generally used to collect shellfish samples; moreover, the traditional collection method The sampling location of the plant is easy to change, and it is impossible to strictly col...

AI Technical Summary

Problems solved by technology

The traditional method is convenient and quick, but it is often limited by conditions such as the type of seabed substrate and the characteristics of benthic organisms. For example, the bottom trawling method cannot be used in reef areas, and the method of collecting sediment is generally used to collect shellfish samples; moreover, the traditional collection method The sampling location is easy to change, and it is impossible to collect samples strictly all year round

At present, there are few benthic collection devices that have been developed, and most of them adopt the method of capture, and seldom adopt the method of trapping; the single type of collection device can no longer meet the needs of the investigation and research of benthic resources under the complex sea conditions in the offshore

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