picture shows portuguese oyster of longevity amongst edible periwinkle and covered with chthamalus barnacles. New images added to help ID please.
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Can someone tell me if crassostrea gigas and crassostrea angulata are now considered to be the same?
They are different.
Crassostrea gigas is still the Pacific (Japanese) Oyster
Crassostrea angulata is still the Portuguese Oyster.
The (lengthy) Summary in WoRMS here -
THREE MARINE PROJECTS
..here now considered gigas. But were angulata - they reckon that angulata no longer exists and who am I to argue (ask Chris). And for the record they are saying that they are no longer Portuguese but American - because the farm along the coast says so.
Lat/Lng: 51.3843, 1.3255
OS grid ref: TR314702
Large numbers of this non-native sp in this area.