Abstract: In order to more accurately, more scientifically, and more efficiently evaluate the suitability of the construction of large-scale deep-water bottom-sitting cages, this paper investigates and studies the policy compliance, sea state suitability, and operational efficiency of the 321 hm2 sea area in the northwest of Wuanda Island, Dalian City, and evaluates the suitability of the construction of large-scale deep-water bottom-sitting cages in this sea area. The results show that area 1 is the most suitable for constructing large deep-water bottom-sitting cages, followed by areas 2, 3, 4, and 5. The most suitable construction area is mainly located southeast of the sea. The sea area is about 13 hm2, which meets the policy requirements. The seawater exchange condition is good, the seabed terrain is flat, the geological structure is stable, and the foundation bearing capacity condition is good. This area can fully meet the construction and operation requirements of large deep-water bottom-sitting cages and is conducive to the function of large deep-water bottom-sitting cages. In this study, a comprehensive evaluation system for the construction suitability of large deep-water sitt-bottom cages was constructed, and suitable construction areas were selected, which could provide a reference for the construction and development of large deep-water sitt-bottom cages in Wuanda Island sea area of Dalian City.

Key words:  , large deep-water bottom mounted cage, suitability, seawater aquaculture, topographic features

摘要： 为更加准确、科学、高效地评估大型深水坐底式网箱建设的适宜性，针对大连市乌蟒岛西北部321 hm2海域，对该海域的政策符合性、海况适宜性和运营增效性三方面进行调查研究，评估在该海域建设大型深水坐底式网箱的适宜性。结果显示：该海域区域1为最适宜进行大型深水坐底式网箱建设的区域，其次为区域2、3、4、5。最适宜建设区域主要位于该海域的东南部，海域面积约13 hm2，符合政策要求，海域水交换状况良好，海底地形平坦，地质结构稳定，地基承载力条件较好。此区域完全可满足大型深水坐底式网箱的建设和运营需求，有利于大型深水坐底式网箱的功能发挥。本研究构建了大型深水坐底式网箱建设适宜性综合评价体系，选出适宜建设区域，可为大连市乌蟒岛海域大型深水坐底式网箱的建设与发展提供参考。

关键词: 大型深水坐底式网箱, 适宜性, 海水养殖, 地形地貌