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美国硬壳蛤(Mercenaria)原分布于美国东海岸,是美国大西洋沿岸和滩涂的主要养殖贝类,营养和经济价值较高,贝壳又可作为高级工艺品、装饰品的原料,由硬壳蛤提取的蛤素能够抑制肿瘤的生长。美国硬壳蛤为广温、广盐贝类,对低盐和高温的耐受力均较强,具有较快的生长速度,一年即可达到性成熟。其对底质无特殊要求,在沙底、沙泥底、泥底和海岸床等多种底质的滩涂和浅海,都可以正常生长、发育。2004年丹东市水产技术推广总站从大连金州引进该蛤进行池塘养殖试验,经三个月的试养获得成功。
Mercenaria was originally distributed on the east coast of the United States. It is the main cultured shellfish on the coasts and beaches of the United States. Its nutrition and economic value are high. Shells can be used as raw materials for fine arts and crafts and ornaments, The clam hormone can inhibit tumor growth. The United States hard shell clams for the wide temperature, wide salt shellfish, low salt and high temperature tolerance are strong, with a faster growth rate, one year to reach sexual maturity. It has no special requirements on the sediment. It can grow and develop normally in the sand bottom, sand bottom, mud bottom and coastal bed and other sediments of the beach and shallow sea. 2004 Dandong City Fisheries Technology Extension Station from Dalian Jinzhou introduction of the clam pond farming test, after three months of trial success.