Cubic sinking type sea cucumber and oyster polyculture device

Abstract

The invention relates to the technical field of sea cucumber culture equipment, in particular to a cubic sinking type sea cucumber and oyster polyculture device. The device comprises a plurality of square cubic net cages which sink into the seabed, the tops of the square cubic net cages are connected with buoys through lifting ropes, the buoys are arranged on the sea surface to facilitate positioning, and the square cubic net cages can be put in rows; the square cubic net cage comprises a steel structure frame and a culture net cage internally provided with oyster culture ropes, the culture net cage is detachably assembled in the steel structure frame, and the steel structure frame is made of seawater corrosion resistant steel and comprises a square three-dimensional frame composed of horizontal frame cross beams and vertical supporting stand columns. Reinforcing beams are locally added to increase the strength of the whole frame; the culture net cage is made of a knotless net, the periphery of the culture net cage is provided with a binding band, the binding band is used for binding the culture net cage on the steel structure frame, a plurality of oyster culture ropes are arranged in the culture net cage, and the culture net cage is provided with a retractable opening, so that sea cucumber and oyster fry throwing and catching operation is facilitated.

Description

technical field [0001] The invention relates to the technical field of sea cucumber culture equipment, in particular to a cubic submerged type sea cucumber and oyster polyculture device. Background technique [0002] With the rapid development of my country's economy and society and the continuous growth of the population, affected by many factors such as environmental pollution, engineering construction and overfishing, my country's offshore treasure resources have declined seriously, the ecological environment of the waters has been deteriorating, and the desertification of the waters has become more and more obvious, which has seriously affected my country's marine resources. Conservation and sustainable use of biological resources. [0003] At present, with the country's gradual emphasis on the marine economy, China's fishery production has begun to develop from "mainly catching" to "mainly raising", and China's fishery has shifted to a quality and benefit type. As a com...

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Problems solved by technology

[0004] Most of the cage culture facilities currently used are floating on the water surface, which has many shortcomings: First, the cages are located in the upper water layer, making it easier to breed benthic species It is disturbed by temperature and light, and it is difficult to obtain bait when it sinks, which affects growth; second, it occupies a large amount of water surface area, which affects navigation; third, the use of plastic / foam products in large areas causes environmental pollution; fourth, the upper water layer is easy to form A large number of fouling organisms attach, resulting in weakened water permeability of the cages, affecting the breeding effect, and increasing labor intensity and workload; fifth, a large amount of floating ice is produced in the northern winter, and the volume will damage the water surface equipment. limit

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