Fin's Fish Guide
The Blackspot sweeper (Pempheris oualensis) is a saltwater fish of the family Pempheridae that grows up to 22 cm.
Description
The blackspot sweeper is a reef fish of the family Pempheridae from the Indo-West Pacific. The species reaches about 22 cm and has a deep, compressed, coppery body with large eyes and a black spot at the base of the pectoral fin, to which the name refers. It occurs in clear, shallow lagoon and seaward reefs and is common along the reef margin. By day it forms dense aggregations in caves; at night it hunts benthic and planktonic crustaceans, other small invertebrates and small fishes. Through its schooling behaviour the species is a familiar sight on the reef.
Frequently asked questions
How do you recognise the Blackspot sweeper?
The Blackspot sweeper has a flattened, disc-shaped body, is mainly brown and shows a plain pattern. Copper-coloured with a black blotch at the pectoral fin base; forms shoals in caves during the day.
Where does the Blackspot sweeper live?
The Blackspot sweeper lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-West Pacific, on clear lagoon and seaward reefs.
How big does the Blackspot sweeper get?
The Blackspot sweeper grows to a maximum of about 22 cm. On average the species is around 14 cm.
Is the Blackspot sweeper dangerous to humans?
No, the Blackspot sweeper is harmless to humans. None required: this species is harmless to humans.
Is the Blackspot sweeper edible?
The Blackspot sweeper is rarely eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Pempheris
More from the family Pempheridae
Want the complete picture on the Blackspot sweeper?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blackspot sweeper is one of 12,519 species in the app.