Topic Habitat Data

Currency 1997

• Mangrove distribution - Preliminary mangrove distribution map as derived from satellite imagery captured August 1993. Supervised classification method adopted from uncontrolled training sites. [Dataset] [Project: Gis97] ref: D81
• Habitat variety - Number of habitats identified within a set region. Created by defining a moving window. [Dataset] [Project: Gis97] ref: D76
• Marine Habitats (20) - Classified habitats modelled from integration of data from various CSIRO cruises. Modelled from the combination of epibenthos density, substrate types, seagrass present/absent and depth. [Dataset] [Project: Gis97] ref: D75
• Main marine habitats(9) - Major classified habitats modelled from integration of data from various CSIRO cruises. Modelled from the combination of epibenthos density, substrate types, seagrass present/absent and depth. [Dataset] [Project: Gis97] ref: D74
• Current Stress Contours(Pa) - Contours of current stress as derived from data from Lance Bode (JCU) 1997. [Dataset] [Project: Gis97] ref: D73
• Current Stress (Pa) - Thematic contours of current stress as derived from data from Lance Bode (JCU) 1997. [Dataset] [Project: Gis97] ref: D72
• Substrate Types - Distribution of substrate types as derived by voronoi modelling data from CSIRO cruises to 1997. [Dataset] [Project: Gis97] ref: D71
• Epibenthos Density - Voronoi diagram of epibenthos densities (Dense to very sparse) throughout Torres Strait. [Dataset] [Project: Gis97] ref: D70
• Reeftop Habitat Classifications - Reef top habitats of eastern Torres Strait classified by satellite imagery captured November 1992. Classifications grouped from supervised classifications of CSIRO reef resource inventory survey data. [Dataset] [Project: Gis97] ref: D82

Currency 1996

• Substrate Sample site density - Density map of substrate type survey sites used in the derivation of substrate type distribution throughout Torres Strait 1989. Density is of survey sites over 90 sq. km. (within 5km radius). [Dataset] [Project: Gis93-96] ref: D66
• Epibenthos Density (Contours) - Contoured zones of epibenthos density (Dense to Very Sparse) throughout central Torres Strait. Caution: Some researchers consider that voronoi interpolation is a more suitable spatial modelling procedure. Derived from Mplob.dbf. [Dataset] [Project: Gis93-96] ref: D14
• Epibenthos Density (Voronoi) - Voronoi diagram of epibenthos density (Dense to Very Sparse) throughout central Torres Strait. Derived from Mplob.dbf. [Dataset] [Project: Gis93-96] ref: D15
• Epibenthos sample site density - Epibenthos sample site density map as derived from mplob.dbf . Showing density of sample sites over 90 sq. km. (within 5km radius). Parameters used for grid analysis: pointgrid=500m, focalsum=5km radius, slices=0+4*equal area, densities 0,1,2,3 per 90 sq.km [Dataset] [Project: Gis93-96] ref: D16
• Sediment Survey Sites - Sediment sampling sites, predominately around Torres Strait, from various CSIRO cruises (1975 - 1994). [Dataset] [Project: Gis93-96] ref: D43
• Percent Mud - Percent mud distribution as depicted by spatially modelling and extrapolating (using kriging technique) database sed1merv.dbf. Contours between 5 - 35% @5%lines. The evaluation of percent mud is based on the segregation between mud, sand and gravel of a benthic grab sample. It can be assumed that areas of low percent mud are high in percent sand as percent gravel was consistently low (mean = 10%). Derived from Sed1merv.dbf. [Dataset] [Project: Gis93-96] ref: D44
• Reliability Mud % - Statistically derived (kriged residual) contour map of the survey site reliability of Percent Mud. Derived from various CSIRO sediment sampling cruises predominately around the Torres Strait. [Dataset] [Project: Gis93-96] ref: D45
• Sediment sample site density - Sediment sample site density (polygon feature) map. Derived from ssed1merv.dbf. Showing density of survey sites over 90 sq. km. (within 5km radius). Parameters used: pointgrid=500m, focalsum=5km radius, slices=0+4*equal area, densities-0,2,4,7 per 90sq.km [Dataset] [Project: Gis93-96] ref: D46
• Epibenthos sample sites - 271 survey sites for lobster, pearlshell, epibenthos and substrate types carried out during CSIRO lobster cruise during 1989. [Dataset] [Project: Gis93-96] ref: D11
• Substrate Types - Distribution of substrate type as derived by spatial modelling of data collected during CSIRO lobster cruise during 1989. Derived from Mplob.dbf - Survey site data of lobster, pearlshell, epibenthos and substrate types carried out during CSIRO lobster cruise during 1989. Spatially modelled using voronoi diagram. [Dataset] [Project: Gis93-96] ref: D65
• Substrate sample sites - Survey site data of lobster, pearlshell, epibenthos and substrate types carried out during CSIRO lobster cruise during 1989. [Dataset] [Project: Gis93-96] ref: D64