论文部分内容阅读
鱼礁选址是人工鱼礁建设首要考虑的重要环节,科学评价分析是确保人工鱼礁建设成功的前提。本文依据影响鱼礁选址的主要因素,从海洋功能区划、海洋物理化学环境、海洋生物资源环境三方面选取了海洋功能区、水深、流速、水质、底质类型、生物资源、重要渔业水域等7项指标,运用Arc GIS技术手段,对天津市近海海域人工鱼礁投放的适宜性进行了评价,得出最适宜、较适宜及一般适宜人工鱼礁布设区域的空间分布,这三类区域所占面积分别为8.61 km2、29.78 km2和38.02 km2,其中,最适宜鱼礁投放的区域位于汉沽区营城镇蔡家堡村至大神堂村以南水深4~5 m的海域,与天津市目前已开展的人工鱼礁投礁区域相距较近;较适宜开展鱼礁投放的区域主要分布在太平镇沙井子乡以东水深9~10 m的海域及最适宜区的外围区域。实证研究结果可为天津市人工鱼礁建设提供技术支撑和参考依据,同时也为我国人工鱼礁建设适宜性评价提供借鉴。
Site selection of reefs is an important part of artificial reef construction. Scientific evaluation and analysis are the prerequisites for ensuring the construction of artificial reefs. Based on the main factors influencing the reef siting, this paper selects the marine functional zones, water depth, flow rate, water quality, sediment types, biological resources, important fishery waters and so on from three aspects: marine functional zoning, marine physical chemistry environment and marine living resources environment 7 indicators, the use of Arc GIS technology means to assess the suitability of artificial reefs in Tianjin offshore waters, and to find out the most suitable, suitable and generally suitable artificial reefs spatial distribution of the layout of the three regions Accounting for 8.61 km2, 29.78 km2 and 38.02 km2, respectively, of which the most suitable area for reef placement is located in the waters 4 to 5 meters deep from Caijiapu Village, Yingcheng Town, Hangu District, to the south of Dashen Tang Village, The areas reefed by artificial reefs are relatively close. The reef areas suitable for reef distribution are mainly located in the waters of 9-10 m depth to the east of Shajingzi Township, Taiping Town and the outermost areas of the most suitable areas. The results of empirical research can provide technical support and reference for the construction of artificial reefs in Tianjin City, and provide references for the evaluation of the suitability of artificial reefs in China.