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A fishing screening method for different grades and specifications of fish

A screening method and fish technology, applied in fishing, application, animal husbandry, etc., can solve labor-consuming, time-consuming, labor-consuming and other problems, achieve the effect of simplifying operation methods, efficient separation and screening, and improving production efficiency

Inactive Publication Date: 2015-11-18
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the number of selections is not large, it is time-consuming, labor-intensive, and labor-intensive

Method used

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  • A fishing screening method for different grades and specifications of fish
  • A fishing screening method for different grades and specifications of fish
  • A fishing screening method for different grades and specifications of fish

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0016] In this embodiment, the cultured species is yellowfin sea bream as an example. It is an important economic species for seawater breeding. First, the small fry are concentrated in the pond to breed fat, and then the individuals with a body length of 130mm or more are uniformly selected for release (release) return to the natural environment to grow and proliferate).

[0017] The specific method for catching and screening fish of different grades and specifications provided by the present embodiment comprises the following steps:

[0018] (1) Prepare sub-standard cabinets, such as Figure 1-2 As shown in , the cabinet can be set to 3 meters (length) × 1.5 meters (width) × 1 meter (height). Evenly spaced plunger rods 2, the distance between the plunger rods is adjusted to be 30mm, and individuals with a fish body length of more than 130mm can be caught. The remaining side frame is provided with a mesh sheet 3, and the mesh sheet is provided with an opening 4, and the open...

Embodiment 2

[0025] In this embodiment, the cultured species is black sea bream as an example. As the object of release, it is an important economic species for seawater breeding. First, the small fish fry are concentrated in the pond to grow fat, and then the individuals with a size of 75 mm or more are uniformly selected for release (returning to the natural environment for growth and proliferation) ).

[0026] The method for catching and screening fish of different grades and specifications provided in this embodiment comprises the following steps:

[0027] (1) Prepare sub-standard cabinets, such as Figure 1-2 As shown in , the cabinet can be set to 2 meters (length) × 1.2 meters (width) × 0.8 meters (height). The sub-standard box is a cuboid frame 1, wherein the lower frame and the three side frames are provided with parallel and evenly spaced plungers 2, and the distance between the plungers is adjusted to be 15mm, which can catch fish with a body length of more than 75mm. A mesh 3...

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Abstract

A method for catching and screening fishes of different grade specifications includes the following steps that a specification dividing box body is manufactured and is of a cuboid frame, insertion rods which are evenly arranged in parallel at intervals are arranged in a lower frame body and three lateral frame bodies, a mesh is arranged on a surplus lateral frame body, openings are formed in the mesh, and a funnel-shaped inlet facing the inside of the box body is arranged in the openings. Fish blocking nets are arranged on two vertical opposite sides of the lateral frame body provided with a screen, a flow guide area is formed between the lateral frame body and the two fish blocking nets, fishes can enter the specification dividing box body along the flow guide area, an aerator is arranged nearby the lateral frame body opposite to the lateral frame body with the screen, the aerator is started, the fishes can swim into the flow guide area together to enter the specification dividing box body, the fishes not meeting the specification slip away from the space among the insertion rods of the specification dividing box body, and the fishes meeting the specification are trapped in the specification dividing box body. The required fishes of different specifications can be separated at any time by adjusting the number of the insertion rods in the specification dividing box body. By means of the method, the fishes cannot be damaged, and fishery creatures of different specifications can be separated at any time.

Description

technical field [0001] The invention belongs to the technical field of fish farming, and in particular relates to a fishing and screening method for fish of different grades and specifications. Background technique [0002] In the process of fishery and aquaculture, fat thickening is carried out in a certain closed water body environment, and the seedling cultivation stage is always dense and uneven in size, and often needs to be screened. The traditional method is to round up the whole pond for selective filtration. Such an operation method must be operated on all fish species, which will inevitably involve innocent people. Affect the growth of other individuals, and even have varying degrees of damage. Especially when the number of selections is not large, it is time-consuming, labor-intensive, and labor-intensive. The release operation in marine ranch is more prominent, the species are small, and the predatory damage of the jungle in nature is not conducive to the rapi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K69/08
Inventor 孙典荣梁沛文林昭进江艳娥刘岩
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI