Plankton collection device and collection method

Abstract

The invention relates to water biomass measurement, in particular to a plankton collection method and collection device. The collection device comprises a collection tank, a yarn box, bolting silk and a fixing device, the collection tank is a rectangular solid or cube without a bottom or top and comprises a front side wall, a rear side wall, a left side wall and a right side wall, the yarn box comprises a long barrel-shaped box body, a yarn shaft and a shaft lever, the yarn shaft and the shaft lever are arranged in the box body, the long barrel-shaped box body is arranged along the outer side of the front side wall of the collection tank, the yarn shaft sleeves the shaft lever, two ends of the shaft lever extend out of the yarn shaft and are connected with two ends of the long barrel-shaped box body, a linear opening parallel to the yarn shaft is formed in the outer wall of the barrel-shaped box body, positioned below the lower edge of the bottom of the front side wall and parallel to the lower edge of the bottom of the front side wall, the length of the linear opening is matched with that of lower edge of the bottom of the front side wall, one end of the bolting silk is fixedly wound on the yarn shaft, and the other end of the bolting silk extends out of the linear opening, can be pulled to pass and seal the bottom of the collection tank and then is fixed onto the fixing device on the rear side wall.

Description

Technical field [0001] The invention relates to water biomass measurement, in particular to a plankton collection device and a collection method. Background technique [0002] Plankton are aquatic organisms that live in suspension in the water, including phytoplankton and zooplankton. Part of the plankton has the ability to swim, but its swimming speed is often slower than that of the ocean current in which it is located, so it cannot swim flexibly in the water effectively, nor is it sufficient to resist the flow of water. Generally, plankton are small, large in number, and widely distributed. Their types and numbers vary with time (mainly seasonal distribution) and space (mainly horizontal and vertical distribution). Plankton is not only the basis of the productivity of other organisms in the water area, but also its community structure and species composition are often used to evaluate the current status of the water ecosystem. Therefore, plankton biology has been paid more a...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of inability to position and collect plankton samples and low collection efficiency in the prior art, the present disclosure provides a plankton collection device and collection method, which can collect plankton samples in a fixed position and fixed size quadrat, and Quickly filter out excess water, improve collection efficiency and accuracy of biomass statistics

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