4 - Central Institute of Brackishwater Aquaculture

National Workshop-cum-Tratntng on Bioinformatics and Information Management in Aquaculture
14.10 Web GIs in Fisheries
Web-based GIs is becoming more and more common as time passes. GIs for
anyone, anywhere, anytime - the Web enables geographic information to be
shared and distributed quickly and cost effectively. Web GIs is a integration of
Word Wide Web (WWW) and GIs technologies. In Web GIs, GIs server prepares
maps and launches on web sites. In this technology, there are two things
WebGIS server and map browser. Map browser sends the request to GIs server
and GIs server creates the map and sends to the client. It is very useful tool for
dissemination of information (Map based information) in large no of clients.
15. Summery
The application of remote sensing is not now a new tool for mapping of wetland
and other natural resources. Previously the spatial resolution was very low, so
the mapping of small water bodies was not possible. But after lunching of new
satellite (OrbView and IKONOS, etc.) with high spatial resolution the mapplng of
water body less than 0.05 ha is possible. There are few parameters studied with
the remote sensing but in future some more parameters can be correlated.
Hyperspectral data now available from several satellites, allow better
discrimination between pigments, thus allowing the identification of broad algal
groups. Such information allows us to move away from empirical approaches
now being used and develop algorithms that will allow us to use the remote
sensing for assessment, monitoring and management of fisheries resources.
A GIs is computer-based tool for geographical analysis of information. It IS not
simply a digitized map, nor does it hold maps. It holds a database of spatlal data
and attribute of descriptive information about features on a map, which can be
used to create desired maps. GIs has a significant role to play In the dec~s~on
making process in fisher~es. At various levels i.e. Fleld, reg~onal, national and
global levels. This is the one of the important tool of lnformatlon technology,
which is very useful to fishery scientist/ Managers to arrive at better decisions by
integrating research results with intensive location specific ~nforrnat~on on various
biophysical and socioeconomic variables. This technology allows to use and
handle a wider range of spatial database such as soil, hydrology, crop, fisheries,
weather etc. and integrate with socioeconomic variable and wlth the new
technologies that are being developed from time to time. Potential areas for
growth in GIs application to fisheries management include real time analysis,
stock assessment, spatial demand and supply analysis, inventory management,
environmental impact assessment biodiversity degradat~on assessment and
disaster management.
Current information technology trends and future GIs tools will provide a range
of function embedded in various components that can be tailored for specific use.
GIs enable application by incorporating software components supporting
geographic manipulation and visualization that are needed for specific application
for development of capture fisheries aqua culture development wetlands
management reservoirs management etc.