High-yielding Corbicula fluminea culture method

A breeding method and technology for river clams, which are applied in fish farming, application, climate change adaptation and other directions, can solve problems such as environmental deterioration and environmental pollution of clams breeding, and achieve the effects of easy management, reduced damage and simple methods.

Active Publication Date: 2016-12-07
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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Problems solved by technology

[0007] The purpose of the present invention is to solve the deterioration of the existing river clam breeding environment, especially the problem that artificial feeding is ea...

Method used

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with embodiment.

[0028] A high-yield breeding method for river clams is characterized in that it comprises the following steps:

[0029] First of all, choose a breeding breeding area; away from the main shipping routes and the inlet and outlet estuaries, and can not be in the lake sedentary fish spawning grounds. The water quality should meet the national fishery water standard (GB 116070); the soft mud bottom or sediment bottom should meet the requirements of GB / T 18407.4, and the bottom should be flat; the slow-flowing waters with a water velocity of 0.1 m / s to 0.6 m / s should be dissolved The oxygen content is relatively high (please give a specific value range if it is greater than 7 mg / L), the pH value is neutral or slightly alkaline, the water depth is 0.5m-2.5m, and the transparency is 50cm-100cm. High density of phytoplankton (greater than 5.0×10 5 ind. / L gives a specific numerical range), ...

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Abstract

The invention relates to a high-yielding and propagating Corbicula fluminea culture method. The method is characterized by comprising the following steps: firstly, selecting a propagating culture area, which is required to be far away from shipping thoroughfares and estuaries for water intake and drainage and cannot be a settled fish spawning site in a lake; secondly, carrying out purse seine in the selected propagating culture area, and controlling the area of a purse seine to 3hm<2> to 5hm<2>, wherein the purse seine should meet the requirements on preventing cultured fishes from escaping and preventing natural enemy fishes of Corbicula fluminea outside the purse seine from entering, and the height of the purse seine should be higher than the highest water level of the culture area over the years by at least 50cm; thirdly, selecting waveless weather, and carrying out fish eradication by adopting a ground cage and netting method; fourthly, carrying out young Corbicula fluminea stocking: selecting Corbicula fluminea, of which the shell length is 0.5cm to 1.2cm, the individual weight is 0.5g to 1g and the number per kilogram is 1,500 to 2,200, as offspring, and carrying out soaking for 10 to 20 minutes in a 2% to 4% common-salt aqueous solution before stocking for disinfecting; fifthly, stocking propagating fishes: selecting Hypophthalmichthys molitrix and Aristichthys nobilis as propagating culture fishes; and sixthly, strengthening daily management. The method disclosed by the invention is simple and is obvious in economic efficiency.

Description

technical field [0001] The invention relates to an aquaculture technology, in particular to a river clam culture technology, in particular to a high-yield multiplication and culture method for river clams. Background technique [0002] my country's inland water resources are extensive, with numerous rivers and lakes, fertile water, rich natural bait, and relatively rich freshwater fishery germplasm resources. However, in the past 20 years, with the rapid economic development, water ecological environment problems have become increasingly serious, water pollution, overfishing and the destruction of water ecosystems have led to the depletion of fishery germplasm resources, especially the famous "four major fish" in my country. And the output of local specialty varieties has dropped significantly. In order to alleviate this contradiction, in recent years, many areas of our country have adopted artificial multiplication technology measures in order to play a role in multiplicati...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81
Inventor 张彤晴刘燕山李大命唐晟凯刘小维
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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