Tideland semi-closed multi-stage comprehensive ecological culturing method

Abstract

The invention discloses a tideland semi-closed multi-stage comprehensive ecological culturing method. According to the invention, a multi-stage comprehensive ecological culturing mode is adopted; onlythe fish in fish-shrimp-crab mixed culturing ponds needs to be fed on a floating granular puffed feed; when the tide rises, seawater is supplemented into a water inlet ditch, and oysters cultured inthe water inlet ditch are fed on organic matters and inorganic matters in the supplemented seawater, so a purifying effect is exerted on the supplemented seawater; purified seawater flows into the fish-shrimp-crab mixed culturing ponds and becomes pond water, and a residual feed for the fish and the organic matters and the inorganic matters generated by fish-shrimp-crab metabolism in the fish-shrimp-crab mixed culturing ponds are brought into an oyster hang-culturing pond with the pond water; the oysters cultured in the oyster hang-culturing pond are fed on the residual feed, the organic matters and the inorganic matters brought by the pond water, so the purifying effect is exerted on the pond water; when the tide falls, a part of the purified pond water is discharged into the sea, so thepollution of fish-shrimp-crab mixed culturing to the water environment can be reduced; and water exchanging can be realized by utilizing the tide, so energy consumption and cost of the tideland semi-closed multi-stage comprehensive ecological culturing method provided by the invention can be reduced.

Description

technical field [0001] The invention relates to a tidal flat semi-closed multi-stage comprehensive ecological breeding method, which belongs to the field of aquaculture. Background technique [0002] The tidal flat is a breeding zone with high potential. First of all, tidal flats connect the land and the sea, providing a good habitat for the benthic biome, thus providing a rich source of bait for fish, shrimps, crabs, shellfish and other biological species. Secondly, the tides in tidal flat areas fluctuate frequently. When the tide rises, various rich nutrients are brought in from the open sea, and when the tide ebbs, the waste can be taken away from the breeding area. Of course, the discharge of these wastes cannot exceed the self-purification capacity of the ocean. Third, because land and sea transportation are all very convenient, it can greatly reduce the cost of breeding. [0003] According to previous production practices, the economic and environmental benefits of ...

AI Technical Summary

Problems solved by technology

Nevertheless, in the middle and late stages of breeding, there will still be a large amount of suspended or dissolved inorganic and organic substances indirectly produced by residual bait and metabolites or primary productivity that cannot be utilized, resulting in deterioration of water quality

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