Nha Trang and Cam Ranh Bays have a range particular importance for marine biodiversity, where concentrate coastal fishing grounds. However, it is strongly affected from human activities such as overexploitation, destructive fishing, contamination, leading to impairment of natural resources.

A WebGIS is designed with tools and features that are common on Web pages, so it is easy to understand for users familiar with the Internet. Currently, WebGIS are rapidly applied in biodiversity assessment and conservation.

For biodiversity research, reef fish were collected at Nha Trang and Cam Ranh Bays from 2013 to 2014. More than 30 species were identified by morphologic and genetic characters. Our research aim to develop an interactive WebGIS and database of reef fishes biodiversity.

We use ArcGIS Desktop and ArcGIS Server, commercially available software, which was extended using a Visual Basic to customize our application. Map and WebGIS were set up for the biodiversity data (species composition, distribution, morphologic and genetic characters of reef fish). The database can provide biodiversity information to create the natural resources network, which can be shared effectively between stakeholders for resource management and conservation.