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Oyster semi-artificial seeding method

A technology for semi-manually picking seedlings and oysters, which is applied in the field of fishery and aquaculture, can solve the problems that the supply of oyster seedlings cannot meet the demand for quantity and quality of breeding, and the technology of semi-manually picking seedlings of oysters is backward. high precision effect

Active Publication Date: 2014-03-05
GUANGXI ZHENGWU MARINE IND
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] At present, the artificial breeding technology of near river oysters has not yet been perfected. The source of oyster seedlings mainly depends on the artificial seedling harvesting technology in natural sea areas. After developing into spat, they are transported to oyster breeding areas all over the country for cultivation. Since the technology of oyster artificial seedling breeding is not yet perfect, and the technology of oyster semi-manual seedling harvesting is backward, the supply of oyster seedlings cannot meet the demand for quantity and quality of farming.

Method used

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Embodiment Construction

[0019] The present invention will be described in further detail below, so that those skilled in the art can implement it with reference to the description.

[0020] The invention provides a method for semi-artificial harvesting of oyster seedlings, comprising the following steps:

[0021] (1) Selection of seedling field

[0022] (1) Selection of address

[0023] The temperature at the confluence of rivers is 5°C-30°C and the seabed with salinity 1.004%-1.016% is selected, and the confluence of rivers is the oyster parent breeding area.

[0024] (2) Choice of time

[0025] The gonad discharge period of the oyster parents was selected between mid-May and early August.

[0026] (2) Fabrication of the adsorber

[0027] Select a number of diamond-shaped convex plastic sheets in a rectangular array on the surface, and connect the plastic sheets in series with glue strings to form an adsorber. Every two plastic sheets are separated by a plastic tube, and every two of the adsorbe...

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Abstract

The invention relates to an oyster semi-artificial seeding method. Oviposition and spermiation of parent oysters are monitored with high precision and high density and planktonic larvae are monitored. The quality of oyster seeding is strictly controlled, the seeding precision is high, the quality is good, the method is simple and easy to carry out, sea water will not be polluted and the oyster semi-artificial seeding method can meet the requirement for large-scale oyster cultivation.

Description

technical field [0001] The invention relates to a method for semi-artificial harvesting of oyster seedlings, which belongs to the field of fish farming. Background technique [0002] Near River oyster, oyster family genus, double shell mollusk, commonly known as oyster. Warm temperate shellfish, distributed in Japan along the Pacific Ocean and the north and south coasts of my country. The hard areas of the sea floor where oysters live are called oyster beds. These beds are located in deep or shallow seawater or saline estuarine waters. Oysters live in the middle intertidal zone. Oysters are sessile shellfish. Generally fixed on shallow sea objects or seaside reefs, they feed and breathe by opening and closing shells. It is a filter-feeding organism, with fine zooplankton, diatoms and organic debris as the main food. The oyster vibrates the cilia on the gills to generate airflow in the water, the water enters the gills, and the suspended particles in the water are stuck by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 上官云山
Owner GUANGXI ZHENGWU MARINE IND
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