Collecting device suitable for marine plankton

Abstract

The invention discloses a collecting device suitable for marine plankton. The collecting device comprises a collecting mechanism, a floating body arranged above the collecting mechanism, a sinking mechanism arranged below the collecting mechanism and a controller, wherein the collecting mechanism comprises a collecting box and a filtering component arranged in the collecting box, an opening and closing component is arranged at the upper end of the collecting box, and the sinking mechanism comprises a fixing balancing weight arranged at the lower end of the collecting box, a releasing component arranged below the fixing balancing weight and a sinking balancing weight with a hanging rope. The collecting device is simple in structure and convenient to use, the floating body above the collecting mechanism provides buoyancy, the sinking mechanism below the collecting mechanism provides sinking gravity, the controller controls the releasing component of the sinking mechanism to release the sinking balancing weight through a received signal of a depth sensor, the collecting mechanism floats upwards, meanwhile the controller controls opening and closing of the opening and closing component, therefore, the collecting mechanism is controlled to collect the plankton, and the plankton can be accurately filtered and collected in a preset collecting depth interval.

Description

technical field [0001] The invention belongs to the technical field of biological collection, and relates to a plankton collecting device, in particular to a collecting device suitable for marine plankton. Background technique [0002] Plankton is an important part of the marine environment. It has the advantages of short growth cycle, sensitivity to environmental changes, and direct observation and identification. The study of plankton population, dominant species, and temporal and spatial distribution is an important content of marine ecological environment assessment. Plankton sample collection is the basis of research, and the main tool for collecting plankton samples is plankton net (plankton collection device), which is widely used in various researches on marine plankton. [0003] At present, plankton collected in shallow waters within 30m generally use shallow water type I plankton nets, shallow water type II plankton nets and shallow water type III plankton nets. T...

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Problems solved by technology

[0004] The object of the present invention is to provide a collection device suitable for marine plankton. The buoyancy provided by the floating body above the collection mechanism and the sinking mechanism below provide the sinking gravity. The controller controls the sinking by receiving the signal from the depth sensor The release component of the sinking mechanism releases the sinking counterweight to make the collection mechanism float up, and at the same time the controller controls the opening and closing of the opening and closing components, thereby controlling the collection mechanism to collect the plankton within the set underwater depth range, which solves the problem It is difficult for plankton collection devices to collect plankton within the predetermined collection depth range and the collection cost is high.

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