Oyster growers at Coffin Bay, South Australia have observed stingrays eating their experimental commercial stocks of Ostrea angasi.

[2][3] Once common, Ostrea angasi became locally extinct, in oyster-producing estuaries on the East Coast north of the Clyde River, as a result of the accidental introduction of the mud worm, Polydora websteri, from New Zealand, in 1888 to 1898.

[4][5] In the 21st century, commercial oyster growers in southern Australia have started experimentally farming O. angasi as a means to diversify their businesses.

This was prompted by other growers suffering massive stock losses of Crassostrea gigas resulting from outbreaks of Pacific Oyster Mortality Syndrome (POMS).

[1] The not-for-profit organisation Estuary Care Foundation was established in South Australia to undertake trials growing Ostrea angasi in the Port River and adjacent waters.