Site Selection Of Deep Water Cage Aquaculture Based On GIS

Cage aquaculture occupies an important position in my country's fishery production.Traditional sea cages are often arranged in coastal or inner bay areas.A large number of pollutants produced during the breeding process have a serious impact on the marine environment,causing the breeding capacity of the sea to exceed its environmental carrying capacity,causing a series of marine ecological and environmental problems.With the progress and development of aquaculture technology and the research and development of aquaculture equipment,cage aquaculture is developing into the deep sea.The spatial layout of the sea area and the location of deep-water cage aquaculture have become one of the research keys in the field of deep-water cage aquaculture.This paper mainly uses the Analytic Hierarchy Process(AHP)and Geographic Information System(GIS)related spatial analysis methods to study the location of deep-water cage culture areas.It can be divided into three parts:(1)According to the characteristics and needs of deep-water cage aquaculture,various factors affecting deep-water cage aquaculture were analyzed,and an index system of 14 influencing factors including natural factors,social factors,and restrictive factors was selected and determined.AHP is used to rank the weights of 14 influencing factors.Water quality> Marine functional zoning> Hydrodynamics>Water depth> Typhoon> Water temperature> Marine environmental carrying capacity> Infrastructure> Waves> Bottom quality> Breeding species> Management policy> Breeding management> Feed supply.(2)Apply GIS technology to the spatial analysis of deep-water cage aquaculture site selection,quantitatively analyze the above-mentioned 14 influencing factors,and build a spatial model of deep-water cage aquaculture site selection based on GIS,and realize GIS-based Quantitative analysis of site selection for deep-water cage aquaculture.(3)Taking the Zhoushan sea area of Zhejiang Province as an example,the AHP method and GIS spatial analysis tools are used to simulate the suitable area of large yellow croaker deep-water cage culture to realize the site selection study of the suitable area for large yellow croaker deep-water cage culture in the Zhoushan sea area,and obtain Relatively scientific location results.This research has very important practical significance for the selection and planning of deep-water cage aquaculture area,and it has a certain role in promoting the development of aquaculture industry.