Seaweeds are marine algae: saltwater-dwelling, simple organisms that fall into the rather outdated general category of "plants". Most of them are the green (1200 species), brown (2200 species) or red (6500 species) kinds。
海草属海藻类，栖居于海水中，单生物体，属于相当原始的一般"植物"类。大多数海草有绿色(1200种)，褐色(2200种) 或红色(6500种)。

Development of alternative livelihoods has become a popular policy to uplift the socio-economic status of small-scale fishers and to reduce fishing pressure on overexploited fisheries. Seaweed farming has been incorporated into many community-based coastal resources management projects and fisheries management initiatives as an alternative livelihood option for fishers in tropical developing countries. This is typically based on several assumptions,either unstated or explicit, of program designers, project managers senior policy makers.
各种替代性谋生谋生方式的发展已成为一项颇受欢迎的政策，不仅可提高少数渔民的社会经济地位，也能降低渔业过度开采的压力。在地处热带的发展中国家中，作为渔民替代性的谋生之道，海草种植已经纳入了许多以社群为基础的沿海资源管理项目和渔业创新管理项目中。一般而言，项目策划人，工程经理和高级政策制订者是基于若干假定做出的，这些假定或是直接的，或是未阐明的。