Zooplankton trapping device and using method thereof

Abstract

The invention relates to a zooplankton trapping device and a using method thereof. The zooplankton trapping device comprises a crawler-type movable base, wherein a fixed bottom plate is fixedly connected to the outer side of the top face of the crawler-type movable base; a fixed support is fixedly connected to the outer side of the top end of the fixed bottom plate, and a reinforced fixed ring isfixedly connected to the outer side of the top end of the fixed support; a high-strength vacuum tank is fixedly connected to the inner wall face of one end of the reinforced fixed ring; a high-pressure exhaust pipe is connected to the inner side of the top end of the high-strength vacuum tank in a communicating mode; a normally-closed electromagnetic air valve is connected to the inner side of oneend of the high-pressure exhaust pipe in a communicating mode; an air pump fixing support is fixedly connected to the outer side of the left end of the high-strength vacuum tank; and inner side of one end of the air pump fixing support is fixedly connected with a high-pressure vacuum air pump. According to the zooplankton trapping device, through the arrangement of a funnel type stainless steel pipeline connector, a floating block, a trapping lamp assembly and a zooplankton filter screen, zooplankton can be trapped by the zooplankton trapping device.

Description

technical field [0001] The invention relates to the technical field of trapping devices, in particular to a trapping device for zooplankton and an application method thereof. Background technique [0002] Algae play an important role in aquaculture. On the one hand, it provides sufficient dissolved oxygen for the water body through photosynthesis. On the other hand, it reduces and eliminates organic pollution and other harmful substances in the water body through its various biochemical reactions. Therefore, algae play an important role in the regulation of pond water quality. Rational use of algae can maintain a virtuous cycle of water ecosystems, achieve the purpose of improving water quality, and achieve twice the result with half the effort. [0003] Algae can also be used to cultivate zooplankton such as copepods and cladocerans. They are natural opening bait for aquatic animal larvae and are often used in the cultivation of aquatic seedlings. [0004] However, once th...

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Problems solved by technology

[0004] However, once there are too many zooplankton in the water, the algae will be eaten by the zooplankton before they grow up, so that the algae in the water body cannot be cultivated, and the water quality will deteriorate, seriously affecting the economic benefits of aquaculture.

[0005] In the early stage of breeding, seedlings were not placed in the pond, and chemical insecticides such as abamectin could be sown to kill zooplankton, but this method led to the risk of drug residues in the breeding pond

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