Etang de Berre (station 19, January 1973) Tsoukalio (T2, 1993) The Ecological Register
global
North America
United States
South America/Africa
Europe
Eurasia
Africa/Australasia
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Hydrobia (snail): 2 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.