Ostrea angasi, St Helens, TAS, Photo: Graham Edgar
Distribution
Temperate Australasia
Description
Large, rounded oyster with a cup-shaped lower valve and a flat or slightly concave right valve that fits within. Juveniles grow attached to stones or shells, but older animals live free on soft sediment. The species is virtually indistinguishable from the European oyster Ostrea edulis, renowned among gourmets.
Information
Max Size: 18 cm
Sea Temperature Range: 10.2-18.7°C
Depth: 1-30m
Habitat: Soft sediment
Rarity
IUCN Threat Status: Not Evaluated
Occurrence: Infrequent (4% of sites)
Occurrence describes how often the species is found on surveys within its distribution.
It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
Abundance: Several (7 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney
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Ostrea angasi, St Helens, TAS, Photo: Graham Edgar
