Saline-alkali pond phytoplankton-artemia-litopenaeus vannamei ecological aquaculture method

Abstract

The invention provides a saline-alkali pond phytoplankton-artemia-litopenaeus vannamei ecological aquaculture method, and belongs to the technical field of aquaculture. The method includes the steps:S01 enriching water in a pond 20-30 days before aquaculture; S02 inoculating artemia cysts into the pond, and enabling the artemia cysts to grow into adult artemia 12-18 days after; S03 collecting theadult artemia by artemia aquaculture devices after the artemia cysts grow into the adult artemia, enabling the density of the adult artemia in each artemia aquaculture device to reach 250-300 pieces / liters, and placing 5-9 artemia aquaculture devices into the pond per acre; S04 placing strong and young litopenaeus vannamei into the pond, enabling the pond aquaculture density of the young litopenaeus vannamei to reach 9-12 thousands / acres, enabling the aquaculture water temperature of the pond to reach the temperature of 17-19 DEG C, enabling salinity to reach 38-55%, and enabling a pH (potential of hydrogen) value to reach 8.0-8.5; S05 performing aquaculture for 2-3 months to harvest the litopenaeus vannamei. According to the method, phytoplankton, the artemia and the litopenaeus vannameiare matched according to suitable ratio, and a phytoplankton-artemia-litopenaeus vannamei food chain and an ecological aquaculture mode with a stable ecological system are formed.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an efficient and stable saline-alkali pond phytoplankton-Artemia-Litopenaeus vannamei ecological breeding method. Background technique [0002] Saline-alkali water is a non-marine saline water resource distributed in land areas. There are about 690 million mu in my country. The rational and effective development and utilization of saline-alkali water resources has become an urgent and arduous task for our country. In recent years, the aquaculture industry of Litopenaeus vannamei in saline-alkaline water has made gratifying achievements. However, the current saline-alkali water shrimp farming still copy the traditional shrimp farming model, which is easy to cause the deposition of organic matter such as residual bait, shrimp excrement and plankton residues. With the continuous aging of the breeding water body, diseases occur frequently and become more and more serious , not o...

AI Technical Summary

Problems solved by technology

However, the current problem is that the biomass of Artemia is difficult to control. If the biomass of Artemia is too large, it will cause feeding pressure on phytoplankton. Since phytoplankton is ingested by Artemia in large quantities, the nutrient salt in the pond will be reduced. High concentration, low phytoplankton organisms, and increased transparency will induce the reproduction of benthic macroalgae and decay in high temperature periods, resulting in the death of prawns; if the biomass of Artemia is too small, the ingestion of Artemia by the shrimp The ability is very strong, and the added Artemia nauplii are quickly ingested by the prawns, so that the phytoplankton will explode under the condition of high nutrient concentration, and the prawns also lack high-quality live protein bait

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