using gis for site selection for mariculture parks in the philippines
DESCRIPTION
Using gis for site selection for Mariculture Parks in the Philippines. Geographic information system (GIS) is a system that captures, stores, analyses and manages data that are associated with different attributes which are spatially referenced to the earth. A GIS-based multi-criteria evaluation model will be used to identify the suitable sites for aquaculture. This will allow site selection of suitable zones for aquaculture based on optimal environmental criteria. For culture, availability of necessary infrastructure, services and utilities and areas where aquaculture needs to be excluded..TRANSCRIPT
Use of Geographical Information
System (GIS) for site selection
Rune Palerud
Akvaplan-niva AS
Use of GIS for site selection
• Geographic information system (GIS) is a system
that captures, stores, analyses and manages data
that are associated with different attributes which
are spatially referenced to the earth
• A GIS-based multi-criteria evaluation model is
used to identify the suitable sites for aquaculture.
Use of GIS for site selection – principal of the GIS model
Main site selection criteria for the GIS model
Bio-physical
• Shore line contour
• Depth profile
• Maximum wave height
Infrastructure
• Accessibility to the site –
roads, transportation, airport, port, etc.
• Infrastructure and utilities -
facilities, security, communication, electricity, fre
shwater
Basemap –Shore line contour
Basemap – Depth profile
Basemap – From wave model Wind N-NE
Basemap - Infrastructure
Main site selection criteria for GIS model
Environmental
• Proximity to
– sensitive habitats
– Sensitive species
Hazards
• Pollution (organic and inorganic)
Other
• Potential for expansion - availability of adjacent
area
Sensitive habitats – Coral reefs
Preferred criteria for cage farming
• Suitable depth
– 15 to 50 meters depth
• Infrastructure
– Road preferable less then 1 km away
– Harbors preferable less then 5 km away
Criteria for cage farming - depth
Criteria for cage farming – Roads and Ports
Excluding factors
• Wave
– More then 1 m height
• Rivers
– Large river 3 km, other river 1,5 km
• Sensitive areas
– Coral reef 300 m away
Excluding factors – wave height
Excluding factors – River outlets
Excluding factors – Coral reefs
Final results for the GIS analyses
• All maps combined give the final
results for the GIS analyses
• Based on the criteria used, four
potential areas were identified (*).
Final results for the GIS analyses
Final results for the GIS analyses
These potential areas can then be further
investigated with field surveys (ground
truthing) to be able to make the final
decision on which areas are suitable for
fish farming.
SALAMAT PO
Calauag
Lopez
Alabat
Perez