Development And Research Of The Fishery Resources Management Information Service In Taihu Lake Based On GIS

There are rich fishery resources in Taihu lake. the degree of aquatic biological diversity is high, climate is also pleasant. Taihu lake is one of China’s most important fishery export areas, But with the overfishing in recent years, the degree of water eutrophication become high, the fishery resources has changed signally. The fishery resources management information system of Taihu lake will help improve the management of fisheries resources in Taihu lake. There are three characteristics of time-space-amount in Taihu lake and fishery resources information, the amount and complexity of data is huge, so the management of these information is very difficult.With the development of science and technology, computer information technology and GIS has been applied to every industry, which provide good technical support for this system’s research and development. This management information system is based on Visual Basic and MapX, system database is mainly Access and part of data is directly stored into Mapinfo. Binding the attribute data and space data by ADO, the fishery resources management information system in Taihu lake is implemented, which achieve fishery resource’s management efficiently and ideal expression. The system provides file manage, map layer operate and edit, map output and print, data query, and so on. Especially fishery information database and GIS thematic mapping are developed for the system. The system aims to use the graphic interactive mode to express the content of data and make user perceive information more intuitional and scientific, which will help fishery workers know the situation of the Taihu fishery resources, make for evaluation and statistic analysis of the Taihu fishery resources, provide decision support for fishery manager.This article has six chapters, the first chapter introduce the characteristic of The Taihu river basin and the status of fishery resources in Taihu, the development application and prospect of GIS in fishery resource management. In the end, this chapter emphatically give a presentation of the purpose and content of this article. The second one introduce the system development technology and software, including the GIS and development tools. The architecture and function of this system are detailed in the third and fourth chapter, the key codes of every functional module are also shown in the part. The fifth chapter is the specific show of instance application. According to the practical situation of this system, the article makes the conclusion and proposes the future research direction.