Study of Marine algae and their Resources in Vietnam

一般认为，日本的海藻(海藻)区系从越南、加里曼丹、菲律宾和台湾延伸到日本的岛屿。菲律宾的海藻调查从1987年到1990年在主要岛屿的海岸进行。1993年1月17日至14日2月17日在越南南部海岸进行了第一次调查。这次调查于1994年2月22日至3月17日在越南北部和中部海岸进行。通过这次调查，北海道大学和芽庄材料科学研究所的标本馆保存了5000多张底栖海藻(海藻)，这次调查清楚地了解了越南的海藻区系。特别是紫菜、草本科、裸子藻、罗非鱼、罗伦西亚、红藻、马尾藻、褐藻等海藻的分类和生物系统学研究。根据第一次调查资料，马尾藻属新种已有报道。从越南移植的材料已经澄清了两种江豚在培养中的生活史。从移植到日本的裸子草和凤尾草的活体材料中，通过培养获得了几个新的知识。人们知道，天然岸边的江江龙须菜的琼脂质量比许多人工池塘的材料要好。需要将新的Graciralria菌株移植到养殖池中。通过第一次调查，从日本向越南移植了锦鸡儿的优良材料--高山锦鸡儿。它们的叶子在池塘里长得很好。越南植物学家的两位成员在这次调查中共同完成了这项工作，并于1993年8月访问了京都大学、九州大学和高知大学。

It is generally believed that Japanese marine alga(seaweed) flora is extended their distribution from Vietnam, Kalimantan, Philippine and Taiwan to the islands of Japan. The survey of seaweeds in Philippines has been carried out on the coast of the main islands from 1987 to 1990. In 1993, the first survey was made on the coast of southern Vietnam during January, 17 and February, 14. The present survey has been carried out on coast of north and central Vietnam during February, 22 and March, 17 in 1994.From these surveys, more than 5000 sheets of collections of benthic marine algae (seaweeds) has been kept in the herbarium of Hokkaido University and Nha Trang institute of Materials Science, and the seaweed flora in Vietnam has been made in clear in this survey. Specially, Seaweeds of Porphyra, Grateloupiaceae, Gymnogongrus, Gracilaria, Laurencia, red algae and Sargassceae, Brown algae have been done the taxonomy and biosystematics by the members of this project. The new species of Sargassum have already reported by the materials of the first survey. Two species of Gracilaria have been cleared their life cycle in culture by the materials transplanted from Vietnam. From the living materials of Gymnogongrus and Grateloupia transplanted in Japan has gotten several new knowledge by culture. It was known that the agar qualities of Gracilaria fronds on the natural shores were better than the materials from many cultivated ponds. It needs that the new Graciralria strain is transplanted in the culture ponds. The good materials, kappaphycus alverazii of caraginan materials has transplanted from Japan to the vietnam by first survey. Their fronds are growing well in the ponds. They might become the new seaweed resources in Vietnam.Two members of Vietnam phycologists have done the joint work in the survey, and have visited in Kyoto University, Kyushu University and Kochi University in August of 1993.