A device for separating sea cucumber cultured juveniles from glass sea squirts and its use method

Abstract

The invention discloses a device for separating juveniles from sea cucumber cultivation from participating in glass sea squirts, which comprises separation lines 2 arranged at equal intervals and fixed on a support frame 1, and the separation lines 2 are selected from nylon wires or metal wires. The separation line spacing should be set differently according to the growth size of juvenile ginseng. The diameter of the separation line should be set in different specifications according to the growth size of juvenile ginseng. The support frame 1 is arranged in a semi-circular arc or bow-arrow shape, and the separation line 2 is symmetrically tightened on the support frame 1 . The design of the present invention is simple and reasonable, which greatly enhances the stability and bearing function of the device. At the same time, it can achieve the effect of quickly separating sea cucumber juveniles participating in glass sea squirts according to the diameter and distance of the separation line, the distance between the separation lines and the opening size of the support frame of the separation line. The structure is simple , Strong practicability, time-saving and labor-saving, high efficiency, and good use value.

Description

technical field [0001] The invention belongs to the field of sea cucumber cultivation and is suitable for the separation of juvenile sea cucumber cultivation participating in Citronella. Background technique [0002] With the rapid development of the sea cucumber breeding industry, the technology of pest control is relatively lagging behind, coupled with the lack of awareness of prevention, this problem has been aggravated year after year, resulting in serious economic losses. Judging from the survey results of sea cucumber predators, glass sea squirts are important predators in the sea cucumber breeding process. Among sea cucumber predators, glass sea squirts are the most difficult to remove. When they occur in large numbers, they will compete with sea cucumbers for survival in the sea cucumber breeding system. Space and bait consume dissolved oxygen and produce ammonia nitrogen, which has a serious inhibitory effect on the growth of sea cucumbers. At present, there is no e...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the sea cucumber breeding industry, the control technology of harmful organisms is relatively lagging behind, coupled with the lack of awareness of prevention, this problem has been aggravated year after year, causing serious economic losses

Judging from the survey results of sea cucumber predators, glass sea squirts are important predators in the sea cucumber breeding process. Among the sea cucumber predators, glass sea squirts are the most difficult to remove. When they occur in large numbers, they will compete with sea cucumbers for survival in the sea cucumber nursery system. Space and bait consume dissolved oxygen and produce ammonia nitrogen, which has a serious inhibitory effect on the growth of sea cucumbers. At present, there is no effective method to control the occurrence of glass sea squirt populations, which is a major problem that plagues sea cucumber farming.

Because its living environment is the same as that of sea cucumbers, and it is easy to deteriorate the water body environment, and it is easy to cause sea cucumbers to "dirty" or even die. In the field of seafood farming, glass sea squirts often occur in the breeding ponds in the later stage of juvenile ginseng cultivation. Inverting the tank can easily cause Ciona to grow on the pool wall or on the attachment base. At present, because Ciona is biologically similar to sea cucumbers, the drugs that kill Ciona will also affect the growth and reproduction of sea cucumbers, so there is no effective one. The method of removing Ciona with drugs, if it is found that there are sea squirts attached to the culture system, manually remove them if necessary

This not only wastes a lot of manpower and material resources, but most of the manual removal methods are manual removal, the process is complicated and slow, and it is easy to cause sea cucumbers to be exposed to the air for too long and mechanically damage the sea cucumber skin, which is very harmful to sea cucumbers.

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