EFG M1.4 Shellfish beds and reefs – current maps

M1. Marine shelf biome

M1
valid
Published

June 7, 2024

This page provides information about the valid indicative distribution map for the ecosystem functional group M1.4 Shellfish beds and reefs. For older or alternative maps, see here.

Methods

Here is the methods summary for Map code and version: M1.4.web.orig v1.0.

Major and minor occurrences of shellfish beds and reefs were identified by overlaying a global map of oyster reefs (Beck et al. 2011) on marine ecoregions (Spalding et al. 2008), and then clipping to the extent of the marine ‘shelf’ base layer as mapped by Harris et al. (2014b). Occurrences were converted to 30 arc second spatial resolution.

Datasets

GSFM-2014 (Harris PT et al. 2014):

Source of topography and geomorphology. Resolution: variable (polygons), static. Accuracy evaluation: quantitative (subsets).

MEOW-2008 (Spalding MD et al. 2008):

Source of biogeographical range. Resolution: variable (polygons), static. Accuracy evaluation: qualitative (experts judgement).

Oyster-reef-list (Beck MW et al. 2011):

Source of validated distribution records. Resolution: variable (points), static. Accuracy evaluation: known records.

dataset url
GSFM-2014 http://www.bluehabitats.org/?page_id=9 :: https://www.grida.no/publications/112 :: https://www.dropbox.com/s/jvaprrz8snnzvfo/global%20seafloor%20geomorphic%20features%20map.zip?dl=0
MEOW-2008 https://www.worldwildlife.org/publications/marine-ecoregions-of-the-world-a-bioregionalization-of-coastal-and-shelf-areas :: https://databasin.org/datasets/3b6b12e7bcca419990c9081c0af254a2 :: http://maps.tnc.org/gis_data.html

Processing

Processing steps used in this map are: Selection :: Clipping.

Map evaluation

This map is considered to be a Coarse quality map based on the following characteristics:

Concept alignment is Semi-direct,general.

Ground observations are no.

The accuracy evaluation Known records,undocumented.

How to use the data

Available files

Following maps are considered current and valid indicative distribution maps for this ecosystem functional group. Web navigation maps are optimised for use in webapps, but they have similar methods and differ only in details of format and processing.

  • Web navigation (code: M1.4.web.orig, version v1.0)
  • Indicative Map (code: M1.4.IM.orig, version v1.0)

You can download geospatial data for this map from the following sources:

M1.4.web.orig (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps) :: Zenodo repository (EFG map) :: Mapbox tileset :: GitHub repository :: GitHub repository :: Earth Engine assets

M1.4.IM.orig (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps)

Note that you need to login to some services like mapbox or earthengine, and in some cases you also need to request access to the files.

License information

Indicative maps have been released with a Creative Commons Attribution 4.0 International license.

Datasets used to create this map might have some restriction for commercial use, see details below.

dataset license_info
GSFM-2014 https://creativecommons.org/licenses/by/4.0/
MEOW-2008 Creative Commons Attribution-NonCommercial 3.0 License :: https://creativecommons.org/licenses/by-nc/3.0

References

References used in this version of the maps.

  • Beck MW, Brumbaugh RD, Airoldi L, Carranza A,. Coen LD, Crawford C, Defeo O, Edgar GJ, Handcock B, Kay MC, Lenihan HS, Luckenbach M, Toropova CL, Zhang G, Guo X (2011) Oyster reefs at risk and recommendations for conservation, restoration, and management BioScience 61: 107-116 DOI:10.1525/bio.2011.61.2.5
  • Harris PT, Macmillan-Lawler M, Rupp J, Baker EK (2014) Geomorphology of the oceans. Marine Geology 352: 4-24. 10.1016/j.margeo.2014.01.011
  • Spalding MD, Fox HE, Allen GR, Davidson N, Ferdaña ZA, Finlayson M, Halpern BS, Jorge MA, Lombana A, Lourie SA, Martin KD, McManus E, Molnar J, Recchia CA, Robertson J (2007) Marine ecoregions of the world: a bioregionalization of coastal and shelf areas. Bioscience 57: 573–583. DOI:10.1641/B570707