Mangroves are important to not only ecology but also socio-economic. Mangroves are
considered as a center of tropical marine biology, one of the world’s most biodiversity and
genetic ecosystems. About 90% of marine organisms live in mangroves, and 80% of the
world’s fisheries depend on mangroves (S. Sandilyan, 2012). However, the mangrove
ecosystem is vulnerable to human impacts and climate change. There have been several
hitherto report that mangroves in the world are severely degraded (FAO, 2007). In an effort
to protect this particularly valuable ecosystem, scientists have been researching in a variety
of aspects in order to exploit, converse and develop these resources in a scientific and effective
way.
Vietnam, with more than 3,000 km of coastline, has a rich mangrove forest system
stretching from north to south. Mangroves not only act as a major role in ensuring the
livelihoods of the coastal residential but also play an extremely important role in ensuring
environmentalism, reducing nature’s impacts and overcoming the phenomena of rising sea
level, saline intrusion, etc.
Xuan Thuy National Park, which belongs to the Northern mangrove system, is located
in the southeast of Giao Thuy district, Nam Dinh province, at the Ba Lat estuary of the Red
River. According to previously punlished documents, the total area of the park is
approximately 7,100 hectares, including 3,100 hectares of land and roughly 4,000 hectares of
mangrove forest. Xuan Thuy National Park is the 50th Ramsar Site of the World, the first of
Southeast Asian and the only of Vietnam from 1989 to 2005. In accordance with the report
of Xuan Thuy National Park, it is preserving the precious ecological value, such as thousands
of hectares of mangroves, rich aquatic resources including algae which have economic value.
The resources of Xuan Thuy National Park are likely to exploit bioactive substances,
including: 1) Mangroves species; 2) Mollusca; 3) Botany that live in mangrove conditions; 4)
Microalgae and microorganisms of mangroves. In particular, mangrove plants play the central
role of the mangrove ecosystem. This biological resource has not been researched, exploited
and used effectively, along with the risk of recession due to the impact of emphatic climate
change and human activities. However, nowadays, there are insubstantial and comprehensive
studies on mangrove plant in Xuan Thuy National Park towards biological activity have
shown.
To contribute to researches related to the mangrove system, the Ph.D. student
conducted a research project “Research on mangrove vegetation which have biological
activities in Xuan Thuy National Park and propose sustainable usage