Echinoderm collection sites. Tidal height indicates the assemblage being collected (intertidal, subtidal) and quadrat sizes are 100x = 1 m2 and 16x = 0.0625 m2. Ecoregions are ARC = Alaska Arctic, NEP = north-east Pacific, CEP = central-east Pacific, WP = western Pacific, MED = Mediterranean, EUR = European Atlantic, NWA = north-west Atlantic, CAR = Caribbean, ASA = Atlantic South America, IAF = Indian Ocean Africa, AAF = Atlantic Ocean Africa, ANT = Antarctic McMurdo Sound. Environmental data were available for those sites marked with asterisks. Raw data for all sites can be obtained through the NaGISA website upon request: www.nagisa.coml.org.
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