Does anyone have data or shapefiles for tidal flats, mangrove distribution, or salt marshes?

Question

I am looking to map out the salt marshes, mangroves, and tidal flats of the world, but I am having difficulty finding data for this. Does anyone have any such data? This is for a research project at my university. Thanks

Answer 1

File Geodatabase of Mangroves here

http://www.iucnredlist.org/technical-documents/spatial-data#mangroves

Mangroves

The ranges are available as a single data set (File Geodatabase) for most plant species that considered to form part of the mangrove ecosystem.

Mangroves (zip file, 97.8 MB)

See metadata document for further information.

Answer 2

I believe those are also available in the National Wetland invnetory.
Managed by U.S Fish and Wildlife.
Perhaps not broken out quite like you mentioned.

This legend shows Vegetated and non-vegetated brackish and saltwater marsh, shrubs, beach, bar, shoal or flat all together.

And this code chart shows how to break out class-subclass and modifiers.

And even an area to contribute data.

Answer 3

Koordinates.com are usually great with these things.

For example, here's one for the whole of New Zealand.

http://koordinates.com/maps/department-conservation/#/layer/148-nz-mangroves/