Austrogammarus australis (Dandenong Freshwater Amphipod)

[Sebbe]

This species was previously listed as Extinct based on surveys in the 1980s that did not find any A. australis in the wild (Williams and Barnard 1988). Several surveys since this time have rediscovered small populations of A. australis (Doeg et al. 1996, Papas and Crowther 2007). Austrogammarus australis is listed as ‘Vulnerable’ under the Victorian government Flora and Fauna Guarantee Act 1988. It has an extent of occurrence (EOO) of 35 km2, an area of occupancy (AOO) of 5 km2 and is found at a single location. It is categorised as Critically Endangered based on this highly restricted range, all of which is threatened by degradation of water quality through pollution and invasive species.

A total of 287 individuals have been identified using methods described in Papas and Crowther (2007). There are no data available on current population estimates.

www.iucnredlist.org/details/2425/0

[surroundx]

Doeg, T. J. (1997). Gone today, here tomorrow — extinct aquatic macroinvertebrates in Victoria. Memoirs of the Museum of Victoria 56(2): 531-535.