Outlook Online 2009

Great Barrier Reef Marine Park Authority :: Maps used throughout the Representative Areas Program

Maps used throughout the Representative Areas Program

The following maps show some of the many datasets used to develop the Representative Areas Program Bioregions

Delphic Reef Regionalisation PDF [PDF 389.80KB]
This regionalisation, based on expert opinion in 1996, was one of the inputs to the Representative Areas Program Bioregions. Reefs were classified by experts using their knowledge and perception of the spatial patterns of hard corals, reef fishes, and other reef biota.

Regionalisation of sponge fauna PDF [PDF 302.84KB]
The sponge fauna regionalisation was derived from statistical ‘classification analysis’, which groups sites according to the (sponge) taxa that have been found there. The result divides the Marine Park into 10 regions. The boundaries between some of these regions are more ‘fuzzy’ than others, as indicated on the map.

Reef morphology and tidal range PDF [PDF 316.91KB]
In 1982, Professor David Hopley classified the reefs within the Great Barrier Reef Marine Park into ten classes according to their physical shape and level of development. He linked these to the growth of the reefs over geological time-scales – especially the last 10 000 years. Tidal ranges are also shown on this map.

Surface and oceanic currents and water depth PDF [PDF 267.17KB]
Map showing oceanographic currents and ocean depths.

Broad sediment size classes PDF [PDF 1075.58KB]
Physical factors such as sediment grain size can influence the distribution and abundance of organisms. The sediment grain size data shown in this map was compiled by Dr Chris Jenkins of the Ocean Science Institute, University of Sydney.

Sediment composition PDF [PDF 204.40KB]
Map showing the occurrence of calcareous sediments and biota in sediment samples.

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