Device and method for breeding sea cucumbers in bathyal half-hanging floating rafts and cages

Abstract

The invention provides a device and a method for breeding sea cucumbers in bathyal half-hanging floating rafts and cages, and relates to the fishery-seawater floating raft and cage breeding. The existing shellfish breeding apparatus such as floating rafts, cages and the like are utilized to breed sea cucumbers through slight adjustment and modification. Large-scale high-density breeding of single shellfishes in a long term causes series problems such as reduction of nutriment, unsmooth water flow and frequent occurrences of disease and insect pest in partial breeding sea areas of Liaoning province; the low-quality shellfish and large-scale paroxysmal death of the shellfish increase the cost and risk of seawater shellfish breeding. According to the invention, by utilizing the existing shellfish breeding apparatus such as floating rafts, cages and the like through slight adjustment and modification, the cages are sunk to the seabed during the low tide and can be separated from the seabed during the high tide. Organisms such as a plurality of shells and bacteria deposited at the seabed of the shellfish breeding area are all the main bait of the sea cucumbers. The device and the method have the advantages of preventing environment pollution, saving energy and labor, greatly increasing efficiency, and providing new technology and development direction for the alternate culture and mixed culture of sea cucumbers and shellfish.

Description

technical field [0001] The present invention relates to seawater floating raft net cage culture in fishery, which is to use the existing culture equipment such as floating rafts and net cages for cultivating shellfish to form a device for cultivating sea cucumbers through minor adjustments and changes, and use this device in the cultivation of sea cucumbers. Sea cucumbers are cultured in shellfish sea areas or other sea areas where conditions permit. technical background [0002] my country has a vast sea area, and mariculture is developing rapidly, and its aquaculture production ranks first in the world, among which shellfish aquaculture accounts for more than 75% of the total production. Long-term large-scale and high-density single-species shellfish farming has caused ecological imbalance in most of the breeding sea areas such as Liaoning. This large-scale and high-density farming cage provides adhesion and survival conditions for fouling organisms mainly mussels , leadi...

AI Technical Summary

Problems solved by technology

Long-term large-scale and high-density single-species shellfish farming has caused ecological imbalance in most of the breeding sea areas such as Liaoning. This large-scale and high-density farming cage provides adhesion and survival conditions for fouling organisms mainly mussels , leading to the decline of seawater nutrients, poor water flow, serious pollution of aquaculture sea areas, and frequent occurrence of diseases and insect pests

The low quality of shellfish and the sudden death of a large area increase the cost and risk of marine shellfish farming

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