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Application of prawn nauplii in clearing of zooplankton in shellfish aquaculture pond

A technology for culturing shrimp nauplii and shellfish, which is applied in application, fish farming, climate change adaptation, etc., can solve problems such as difficulty in cultivating algae, lack of algae, etc., and achieves no hidden dangers of drug residues, simple operation, and convenient use. Effect

Inactive Publication Date: 2016-02-17
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for removing zooplankton in shellfish culture ponds with no drug residue, long duration of effect and economical feasibility, which can solve the problems caused by plankton in current shellfish pond culture. Lack of algae and difficulty in cultivating algae

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  • Application of prawn nauplii in clearing of zooplankton in shellfish aquaculture pond

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Embodiment 1

[0013] On July 25, 2015, in the 10 outdoor cement pools (12m*13m*1.5m) of the Sanya Tropical Fisheries Research and Development Center, 100,000 pearl oyster seedlings were placed in each cement pool, and the shell height of the oyster seedlings was 0.4 about cm. Scallop seedlings are placed in a round basket with a diameter of 75cm and a mesh number of 20 mesh for hanging culture. During the cultivation period, the water temperature is 29-33°C, the salinity is 31-33, and the pH is 7.8-8.2. The water body is driven by a Roots blower to The tube air pan is continuously inflated to keep the dissolved oxygen in the water above 5mg / L. Before the seedlings enter the pond, disinfect the water body with quicklime. After the alkalinity of the water body returns to about 8.0, sprinkle the nutrients required for the growth of single-celled algae in the water body, and insert the single-celled algae species such as chlorella and flat algae. When the water body is emerald green, microscop...

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Abstract

The invention provides application of prawn nauplii in clearing of zooplankton in a shellfish aquaculture pond. In the shellfish aquaculture pond, no bait is fed to the stocking prawn nauplii. The biological characteristic that the healthy prawn nauplii intake zooplankton such as rotifers, copepoda and cladocerans in the growth process is utilized; meanwhile, the characteristic that shellfish in the pond cannot be injured or interfered is utilized; a biological method is used for clearing the zooplankton in the shellfish aquaculture pond. Compared with an existing medicine-using method and an existing physical fishing removing method, the method adopted by the invention has the advantages that the use is convenient; the operation is simple; the cost is low; medicine residue hidden danger does not exist; the safety is high; economy and feasibility are realized, and the like.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a method for removing zooplankton in shellfish culture ponds. Background technique [0002] In the breeding process of shellfish seedlings, after the emergence of indoor cement ponds, they usually go through the roughening stage of outdoor cement ponds, and then they are hoisted into the sea for growth and cultivation. Algae is an indispensable and good bait for shellfish culture. It has the advantages of small size, short propagation period, and high-density propagation. At present, due to technical limitations, spirulina and yeast cannot completely replace algae as bait for shellfish, so the supply of algae in shellfish culture ponds will determine the success or failure of shellfish culture. Zooplankton in water bodies are the main feeders of algae. When the algae in the water body reaches a certain concentration, zooplankton such as rotifers, cladocerae, and scleropodas will repr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 喻达辉姜松邓正华孟子豪张博刘宝锁苏家齐黄桂菊范嗣刚曲涛
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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