Sedimentation, particularly
because of erosion in the upper Orange, Caledon and
some Vaal catchments is a major threat to their rocky
habitats. Dams and weirs probably affected the species
negatively in the past, but the current influence
is unsure. Pollution in Gauteng Province may have
caused extinction in some small tributaries of the
Vaal River. Habitat: Occurs in rocky
habitats in flowing water, favoring rapids. Feeds
on invertebrates, especially insects, taken from rock
surfaces; larger specimens also take small fish. Rarely
caught by anglers. This larger Austroglanis
species will probably never be imported to our aquariums
due to the above limitations. Aquarium Care:
I have kept all three species in aquaria – all
quite difficult to maintain in good condition. Best
results were with A. barnardi – I had
them in a recirculating circular tank. Packed peat
into the filter and pushed the pH right down (Roger
Bills). Diet: Fed them on worms mostly
although I assume they generally eat chironomids,
mayflies and caddis mostly in the wild. They were
very aggressive with each other and seemed to maintain
territories (Roger Bills). Etymology:
The genus name Austroglanis:
auster, south wind, being the most southerly distributed
catfishes in Africa; glanis, sheatfish (Silurus
glanis), now used as a general term for catfish.
The specific
name sclateri:
in honour of William Lutley Sclater (1863-1944), Director,
South African Museum, who supplied type.
Common
Name:
Common Rock Catfish
Synonyms:
Gephyroglanis sclateri
Family:
Austroglanididae
Distribution:
South Africa:
Orange-Vaal River basin, in major tributaries and
main river channel. Also found in Lesotho and Namibia.
Type locality: Vaal River, South
Africa.
Austroglanis
sclateri
Vaal River. Deep river channels always in the main stream channels.
Turbid flows typically–very different from the clear water
Olifants systems
Austroglanis
sclateri Lower Orange River, South Africa
Austroglanis
sclateri
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