Distribution of mapped macrophyte (estuarine vegetation) habitats in South Africa.

See the National Biodiversity Assessment 2019.

This layer was developed as part of the 2018 National Biodiversity Assessment.

This data may not be reproduced by any means, nor redistributed via web site or ftp site, without prior permission. Whilst every effort has been made to ensure the accuracy of data, users are advised to use the data and conclusions drawn from its use with caution. Users noting errors and omissions are requested to notify the office of project (Janine.adams@mandela.ac.za) to improve data accuracy. These data are not for resale or replicating. This digital version is in the public domain requiring only the conventional acknowledgement of source in publications and reports. Janine.adams@mandela.ac This data may not be reproduced by any means, nor redistributed via web site or ftp site, without prior permission. Whilst every effort has been made to ensure the accuracy of data, users are advised to use the data and conclusions drawn from its use with caution. Users noting errors and omissions are requested to notify the office of project (Janine.adams@mandela.ac.za) to improve data accuracy. These data are not for resale or replicating. This digital version is in the public domain requiring only the conventional acknowledgement of source in publications and reports.

APPROPRIATE USE OF THIS DATASET: This data may not be reproduced by any means, nor redistributed via web site or ftp site, without prior permission. Whilst every effort has been made to ensure the accuracy of data, users are advised to use the data and conclusions drawn from its use with caution. Users noting errors and omissions are requested to notify Prof Janine Adams (Janine.adams@mandela.ac.za) to improve data accuracy. These data are not for resale or replicating. This digital version is in the public domain requiring only the conventional acknowledgement of source in publications and reports. Janine.adams@mandela.ac APPROPRIATE USE OF THIS DATASET: This data may not be reproduced by any means, nor redistributed via web site or ftp site, without prior permission. Whilst every effort has been made to ensure the accuracy of data, users are advised to use the data and conclusions drawn from its use with caution. Users noting errors and omissions are requested to notify Prof Janine Adams (Janine.adams@mandela.ac.za) to improve data accuracy. These data are not for resale or replicating. This digital version is in the public domain requiring only the conventional acknowledgement of source in publications and reports.

PROJCS["AEA_RSA_WGS84",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",25.0],PARAMETER["Standard_Parallel_1",-24.0],PARAMETER["Standard_Parallel_2",-33.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

Projection: Albers

False_Easting: 0,00000000

False_Northing: 0,00000000

Central_Meridian: 25,00000000

Standard_Parallel_1: -24,00000000

Standard_Parallel_2: -33,00000000

Latitude_Of_Origin: 0,00000000

Linear Unit: Meter

Geographic Coordinate System: GCS_WGS_1984

Datum: D_WGS_1984

Prime Meridian: Greenwich

Angular Unit: Degree

The maps collated range in date from 2004-2018. Estuaries have been mapped as per the Estuary Health Index to determine Present Ecological Status. Some estuaries were mapped as Nelson Mandela University student theses. Shapefiles were also obtained from SANParks (Swartvlei and Wilderness estuaries). Currently nine data capturers were responsible for the development of GIS estuary maps. Macrophyte habitat descriptions may have been altered from the original published maps so as to standardize macrophyte habitat types. Distribution maps differ in extent, scale and accuracy as they were produced for differing outcomes. The shapefile is formatted in accordance with SANBI specifications. More recent maps produced are delineated according to the Estuarine Functional Zone (EFZ) which is considered the 5 m topographical contour (van Niekerk and Turpie 2012).

Authors and contributors:

Janine Adams, with input from Nelson Mandela University students and researchers:, Dimitri Veldkornet, Jackie Raw, Johan Wasserman, Lyndle Naidoo, Meredith Fernandes, Nolusindiso Jafta, Nuette Gordon, Sabine Hoppe-Speer, Sibulele Nondoda, Taryn Riddin

SANS 1878

FGDC-STD-001-1998