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乳山市海岸线长185 km,滩涂面积6667 hm2(10万亩),其中可养滩涂贝类面积2000 hm2(3万亩),已养1400 hm2(2.1万亩),主要分布在乳山口内湾和前海小泓至杜家岛内湾,大部分底质为软泥、泥沙质,小部分为沙质,底栖硅藻丰富,适宜滩涂贝类生长。滩涂贝类养殖在乳山已有百余年的历史,养殖品种有杂色蛤、牡蛎、缢蛏、青蛤等。滩涂养殖在海水养殖产业和产量中均占有举足轻重的地位。但是,近年来随着生产的发展和环境的变化,滩涂养殖出现了一些不容忽视的问题,造成养殖贝类产量和质量降低。为此,乳山市采取了一系列的对策,并取得了显著成效。现将他们的做法总结如下:
The Rushan coastline has a length of 185 km and a beach area of 6667 hm2 (100,000 mu), of which, the usable area of shoals covers an area of 2000 hectares (30000 hectares) and 1400 hectares (21000 hectares), which are mainly distributed within the Rushankou Bay and the former Sea Xiaohong to Dujialin Bay, most of the sediment for the slime, sediment quality, a small part of the sand, benthic diatoms rich, suitable for beach shellfish growth. Beach shellfish farming in Rushan has more than a hundred years of history, breeding varieties are variegated clams, oysters, emu, clams and so on. Tidal flat farming plays a decisive role in the mariculture industry and production. However, with the development of production and the change of the environment in recent years, there are some problems that can not be neglected in tidal flat culture, resulting in the decrease of the yield and quality of cultured shellfish. To this end, Rushan City adopted a series of countermeasures and achieved remarkable results. Now their approach is summarized as follows: