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Hexagrammos otakii-seaweed comprehensive culture net cage and culture method

A breeding method and technology of hexagonal fish, which is applied in the field of cage culture, can solve the problems that hexagonal fish are vulnerable to external environmental stress, the success rate of breeding is reduced, and the breeding effect is not good, so as to maintain the exchange rate of water bodies and reduce the frequency of replacement , the effect of increasing economic benefits

Active Publication Date: 2021-12-03
山东省海洋科学研究院青岛国家海洋科学研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of six line fish-seaweed comprehensive culture net cage and culture method in order to solve the above problems, to solve the problem of traditional culture in the prior art The six-line carp is vulnerable to external environmental stress, and even the phenomenon of mutual mutilation among individuals results in poor breeding results and a reduced breeding success rate.

Method used

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  • Hexagrammos otakii-seaweed comprehensive culture net cage and culture method
  • Hexagrammos otakii-seaweed comprehensive culture net cage and culture method
  • Hexagrammos otakii-seaweed comprehensive culture net cage and culture method

Examples

Experimental program
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Effect test

Embodiment 1

[0060] From mid-to-early October 2020 to the end of May 2021, the hexaline-seaweed comprehensive culture cage of the present invention is used to carry out the comprehensive culture test of Dataki hexaline and kelp. The size of the fish culture cage 1 is length × width × Height = 6.0m x 6.0m x 4.0m. The average weight of Otaki six line fish was 13.1g when the seedlings were stocked, and the stocking density was 35 fish / m 3 The culture density of kelp is 20 plants / ㎡; the artificial reefs 2-3 have a single area of ​​0.25㎡, which are evenly arranged and cover 25% of the bottom area of ​​the fish cage 1. At the end of breeding, the average body weight of Otaki hexaline was 58.1g, the survival rate was 92%, and the yield of kelp was 5.3kg / ㎡. Take the traditional Hexaline big taki fish farming net cage 1 as a contrast, that is, in the fish culture net cage 1 of the same size without setting the algae reef raft frame 2, the Hexaline big taki of the same size and density are stocked....

Embodiment 2

[0062] From the end of August 2020 to the end of May 2021, the hexaline-seaweed comprehensive culture cage of the present invention was used to carry out the comprehensive culture test of Otaki hexagonal fish and wakame. The size of the fish culture cage 1 is length×width×height = 6.0m x 6.0m x 4.0m. The average weight of Otaki six line fish was 15.7g when the seedlings were stocked, and the stocking density was 35 fish / m 3 The breeding density of wakame is 20 plants / ㎡; the artificial reefs 2-3 have a single area of ​​0.25㎡, which are evenly arranged and cover 25% of the bottom area of ​​the fish cage 1. At the end of breeding, the average weight of Otaki hexaline was 44.5g, the survival rate was 94%, and the output of wakame was 13.8kg / ㎡. Take the traditional Hexaline big taki fish farming net cage 1 as a contrast, that is, in the fish culture net cage 1 of the same size without setting the algae reef raft frame 2, the Hexaline big taki of the same size and density are stock...

Embodiment 3

[0064] From the end of August 2020 to the end of May 2021, the hexaline-seaweed comprehensive culture net cage of the present invention was used to carry out a culture test. The difference from Example 1 was that two kinds of seaweed, asparagus and kelp, were cultured in a rotational manner. Among them, the asparagus cultivation time is from the end of August to the first and middle ten days of November, and the kelp cultivation time is from the first and middle ten days of November to the end of May of the following year. The size of the fish cage 1 is length * width * height = 6.0m * 6.0m * 4.0m. The average weight of Otaki six line carp is 10.3g when the seedlings are stocked, and the stocking density is 35 fish / m 3 ; The breeding density of asparagus is 20 clusters / ㎡, each cluster is 5g; the breeding density of kelp is 20 plants / ㎡; the artificial reef 2-3 has a single area of ​​0.25㎡, which is evenly arranged and covers the bottom of fish culture cage 1 25% of the area. ...

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Abstract

The invention provides a hexagrammos otakii-seaweed comprehensive culture net cage and a culture method, and relates to the field of net cage culture. The hexagrammos otakii-seaweed comprehensive culture net cage comprises a fish culture net cage and an algal reef raft frame, and the fish culture net cage comprises a netting, a cage frame, a buoyancy device and a sinker; and the algal reef raft frame is installed in the fish culture net cage and comprises a vertical rod, a bearing frame, seedling hanging frames, a fixing hook, an artificial reef body, a first lifting rope, a seedling rope, a small falling stone, a second lifting rope and a small floating ball. The bearing frame is located at the bottom of the algal reef raft frame, and a plurality of artificial reef bodies are fixed to the bearing frame. The seedling hanging frames are positioned on the left side and the right side of the middle upper part of the algal reef raft frame; and a plurality of seedling ropes are hung below the seedling hanging frames. The invention further provides a culture method using the comprehensive culture net cage, hexagrammos otakii are cultured in the net cage, and seaweeds are cultured on the seedling ropes. Compared with traditional net cage single culture of the hexagrammos otakii, the survival rate and the growth speed of the hexagrammos otakii are improved, meanwhile, the seaweeds are harvested, and the method is an ecological and efficient culture method.

Description

technical field [0001] The invention relates to a culture net cage and a culture method using the culture net cage, in particular to a six-line fish-seaweed comprehensive culture net cage and a culture method, which belong to the technical field of cage culture. Background technique [0002] Hexaline fish is the collective name for fish belonging to the genus Hexaline, including Otaki hexaline fish, spothead fish, forked line hexaline fish, etc. Its meat is tender, delicious, and has high nutritional value, and is deeply loved by the general public. . Hexaline is a reef fish that inhabits offshore rocks, seaweed beds, and seagrass fields all year round. With global climate change, overfishing, and environmental pollution, the living environment of hexagram has been damaged to varying degrees. The number is on a downward trend. At present, the construction of marine ranches is being actively carried out in various places. By putting in artificial reefs and repairing seaweed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/60A01G33/00A01K61/10
CPCA01K61/60A01G33/00A01K61/10Y02A40/80Y02A40/81
Inventor 王晓龙胡发文菅玉霞李莉高凤祥王雪潘雷郭文
Owner 山东省海洋科学研究院青岛国家海洋科学研究中心
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