Comprehensive multi-trophic-level marine cage aquaculture system device and aquaculture method

Abstract

The invention discloses a comprehensive multi-trophic-level marine cage aquaculture system device and an aquaculture method. An annular peripheral float floats on the sea surface, and a fish aquaculture cage is fixedly arranged at the lower inner edge of the annular peripheral float. A loading plate is horizontally suspended below the fish aquaculture cage and provided with pulling rope through holes. A sea cucumber aquaculture tank is put on the loading plate, and a plurality of independent sea cucumber aquaculture cages are arranged in the sea cucumber aquaculture tank. Upper ends of the pulling ropes are fixed to the peripheral float, middles of the pulling ropes are tied to the sea cucumber aquaculture tank, and lower ends of the pulling ropes movably penetrate the pulling rope through holes to be fixed to a first sinker. A plurality of anchor ropes for fixing the peripheral float at a set position are arranged on the peripheral float and provided with floaters, and partition plates are movably inserted in abalone aquaculture cages which are suspended on the anchor ropes. By reasonable matching and cyclic mutualism of co-cultured organisms in different trophic levels, negative effects caused by pollution problems of traditional marine aquaculture industry are alleviated, and the problem of pollution caused by a single mode in cage aquaculture is solved.

Description

technical field [0001] The invention relates to the field of seawater net cage ecological culture, in particular to a net cage culture system device and a culture method suitable for multi-trophic level co-culture of fish, sea cucumber, abalone and macroalgae. Background technique [0002] At present, the culture technology in cage facilities is becoming more and more mature, and with the continuous expansion of the sea cage culture industry, the total amount of bait fed is gradually increasing, of which 10-30% of the bait is transformed and absorbed by the cultured fish, and more residual bait Organic waste such as excrement from farmed organisms is discharged into water bodies. Due to the increasing pollution of cage farming itself, a series of environmental problems such as the deterioration of the offshore ecosystem and the aggravation of aquaculture biological diseases have seriously restricted the continuous intensive clean production of the aquaculture industry. [0...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention lies in the construction of a comprehensive multi-trophic level seawater cage culture system device, through the symbiosis of multi-trophic level culture organisms, reasonably matching each culture unit, and utilizing high economic value fish, sea treasures and large economical algae It overcomes the problem of self-pollution caused by the single mode of cage culture in the past, and alleviates the problem of environmental pollution while increasing the production of culture

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