Device and method for constructing near-shore multi-level ecological fishery mode

Abstract

The invention relates to the field of mariculture, in particular to a device and method for constructing a near-shore multi-level ecological fishery mode. The device comprises a buoy 1, a mooring rope 2, an algae hanging rope 3, a fixing hook 4 and an artificial reef body 5, wherein one end of the main mooring rope 2 is fixedly connected to the buoy 1, the other end of the main mooring rope 2 is fixedly connected to the artificial reef body 5 through the fixing hook 4, the middle section of the algae hanging rope 3 is fixedly connected to the end, away from the artificial reef body 5, of the main mooring rope 2, in the putting area, the artificial reef body 5 is put into seawater to provide an activity space for marine organisms, alga are cut into sections, the algae sections at the growing ends are selected, the algae sections are fixed to the algae hanging rope 3 to conduct algae proliferation, and then construction of the near-shore multi-level ecological fishery mode is achieved. According to the device and method, algae-fish-shellfish-sea cucumber biomass can be increased, the structural design of the device and method is ingenious, the living and inhabiting environments of algae, fishes, shellfishes and sea cucumbers are fully considered, the biodiversity of the artificial reef area and the stability of the ecological system are improved, and the restoration effect of the near-shore ecological system can be favorably improved.

Description

technical field [0001] The invention relates to the field of mariculture, in particular to a device and a construction method for constructing a near-shore multi-level ecological fishery model. Background technique [0002] At present, the rapid development of marine aquaculture has brought many ecological and environmental problems, such as the illegal and random discharge of aquaculture tail water, the deterioration of the aquaculture water environment, serious eutrophication, frequent red tides, and a series of problems such as the quality and safety of aquatic products. In 2019, ten ministries and commissions including the Ministry of Agriculture and Rural Affairs jointly issued the "Opinions on Accelerating the Green Development of the Aquaculture Industry" to accelerate the green development of the aquaculture industry and promote industrial transformation and upgrading. my country's marine aquaculture industry has shifted from pursuing an increase in aquaculture area ...

AI Technical Summary

Problems solved by technology

Many artificial reefs often only focus on restoring the biomass of one or two populations in the design process, ignoring the overall consideration of biodiversity and community structure stability. , ginseng, fish, etc.), the above problems seriously restrict the aquaculture industry from upgrading to an ecological type

[0003] In the prior art, "A Preliminary Study on the Effect of Ecological Restoration in Zhangzidao Coastal Marine Ranch Demonstration Area, (Chen Yong, Tian Tao, Yin Zengqiang, Liu Yonghu, Chen Lei, Wang Gang, 2014)" records that artificial fish reefs combined with sea treasure seedlings The sea cucumber density has increased by about 14% in the past 2 years, but the density of sea cucumbers has increased by about 14% in the past 2 years. However, the survey of sea cucumber density began 3 years after Zhangzi Island was cast on the reef. The survey has continued for 9 years, and from the survey data. It can be seen that the density of sea cucumbers in the first 5 years has not changed significantly, and the density of sea cucumbers has increased significantly since the 6th year, and it has increased year by year, indicating that it takes 5-6 years to achieve the best results by using this method to increase the production of sea cucumbers. Time to increase sea cucumber production is too long

[0004] In addition, "A Preliminary Study on the Effects of Conservation Resources of Artificial Reefs in Haizhou Bay (Zhang Hu et al., Ocean Fishery, 2005(01): 38-43)" discussed the conservation of fishery resources in the reef area after the artificial reefs were placed in Haizhou Bay. The fish catch in the artificial reef area of ​​Zhouzhou Bay increased by 62.98%, but this method only has obvious effects on fish, shrimp and cephalopods, and has no significant effect on sea cucumbers

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