Brief description
This data is part of the 2013 report "Synthesis of seagrass mapping studies conducted by the Water Science Branch of the Department of Water".Lineage
Maintenance and Update Frequency: notPlannedMethod as taken from the 2013 report "Synthesis of seagrass mapping studies" conducted by the Water Science Branch of the Department of Water":
The mapping methodology of the Albany Harbours survey involved acquiring high quality aerial photographs and interpreting the aerial photography to identify seagrass areas. Intersecting transects across these areas were used to ground truth density (percentage cover) and species composition of the seagrass habitats. The ground trothing field work was undertaken by underwater video tows, shore transects, and spot dives and observations from a small punt or boat equipped with GPS tracking equipment. These areas were then digitised in ARC GIS.
Limited resources and the methodology necessitated distributions and densities to be averaged over large areas. Seagrass distributions and changes in density may have been under or over represented in different parts of the Harbours, making comparisons to previous surveys and estimations of change difficult.
Notes
CreditDepartment of Water, Government of Western Australia.
text: westlimit=117.84405000000001; southlimit=-35.073432699547; eastlimit=117.92879000000002; northlimit=-35.0344
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