Device for catching plankton

A plankton and aggregate technology, applied in fishing, application, animal husbandry, etc., can solve the problems of high production cost, poor nutritional value of bait, unstable bait source, etc.

Inactive Publication Date: 2008-01-30
ZHEJIANG MARICULTURE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unstable bait sources for economic aquatic seedlings, insufficient yield, poor nutritional value of bait, and high production costs have become the main factors restricting the rapid development of economic aquatic seedling production at home and abroad.

Method used

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  • Device for catching plankton
  • Device for catching plankton

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Embodiment Construction

[0011] As shown in Figure 1, the specific embodiment of the present invention is a kind of plankton trapping device, and plankton trapping device comprises water flow generator 1, block net 2, plankton lure lamp 4, collection box 3, collection box 3 It is a box 3 with four side walls and a closed bottom surface and an opening at the top 31. An opening 32 is provided on one side of the peripheral wall, and two screen blocks 2 made of screens at an angle are fixed on the outside of the opening 32. The water flow generator 3 is arranged at the forefront of the fan-shaped area formed by the two block nets 2, the plankton lure lamp 4 is arranged at the front end of the water flow generator 1, a bamboo pole is inserted on the net block 2 and the storage box 3, and the other end of the bamboo pole is directly inserted into the bottom of the water , so that the block 2 and the collection box 3 can float on the water surface for a long time and be fixed in place without moving.

[0012...

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Abstract

The invention relates to a device for catching planktons, comprising nets and a collector case. The collector case is made of screen net and takes the shape of a case with four walls, a closed bottom and an open top; one side of the peripheral wall of the collector case is cut with an opening, the outer side of which is connected with two nets made of screen net and forming certain angle. The top parts of the nets and the collector case are both provided with a supporting object which ensures the net and the collector case to float and be fixed in place. The invention makes use of water flow generator to push planktons in water into the two nets and sends the planktons into the collector case by the joint function of the water flow and the nets. The planktons are further concentrated in the collector case and workers can fish out the planktons which can be used in feeding aquatic fishes after being packed and transported in the collector case with a small fishing net, realizing the induction, pushing, collecting and fishing of planktons in natural waters or large artificial culture pond.

Description

technical field [0001] The invention relates to a device for collecting plankton. Background technique [0002] At present, the main species of live bait for the production of domestic and foreign economic aquatic seedlings such as fish, shrimp, and crab are microalgae, rotifers, and Artemia nauplii. Because microalgae individuals are small, generally only as the opening bait of economic seed or the bait of this seed live bait (rotifer, Artemia nauplii, etc.); With the growth of seedlings, its nutritional value seems to be very lacking. For most economic aquatic seedlings, the longest use time should not exceed 2 weeks; Limited nutritional value and cumbersome artificial hatching work are not ideal bait for economical aquatic seedlings in the middle and late stages. Practice has proved that: in the middle and late stages of most fish, shrimp and crab seedlings, copepods are not only suitable in size, but also rich in nutrients, so they are the best bait. At present, altho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K69/04A01K79/00
Inventor 吴洪喜单乐州蔡景波陈琛彭欣曾国权仲伟
Owner ZHEJIANG MARICULTURE RES INST
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