Silver sweeper

Pempheris oualensis

Fish
IUCN: Least concern

Usual depth4–21 m
Water temperature22–30 °C
Best monthsApril and May
How commonOccasional

All species

Photo credit: (c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 28 records
February: 213 records
March: 222 records
April: 436 records
May: 266 records
June: 188 records
July: 126 records
August: 73 records
September: 89 records
October: 56 records
November: 41 records
December: 14 records

Depth and water temperature

Depth

Mostly recorded at 4–21 m · Deepest record: 93.9 m

0–10 m: 615 records
10–20 m: 670 records
20–30 m: 203 records
30–40 m: 4 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 1 records

Water temperature

Recorded in surface water of 22–30 °C

20–22 °C: 1 records
22–24 °C: 10 records
24–26 °C: 51 records
26–28 °C: 129 records
28–30 °C: 613 records

Photos

(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist
(c) 胡正恆(Jackson Hu), some rights reserved (CC BY) · CC BY · iNaturalist
(c) amfstocker, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist

Names and classification

English: Silver sweeper, Blackspot Sweeper, blacktip sweeper, Bronze Sweeper, Cave Sweeper, Copper Sweeper, Copper Sweeper, Silver sweeper, Keeled Sweeper, Oualan Bullseye, silver sweeper

Names in 3 more languages

French: Poisson-hachette argenté, Poisson-harpe
Japanese: Yumehatampo, ユメハタンポ
Simplified Chinese: 三角仔, 刀片, 水果刀, 烏伊蘭擬金眼鯛, 皮刀, 解餌刀, 黑稍单鳍鱼, 黑稍單鰭魚

Other scientific names: Pempheris oulensis, Pempheris ovalensis, Pemphperis oualensis

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Conservation status as published by GBIF (IUCN Red List).
2,060 open-data records from 1831 to 2023.
Species data updated October 26, 2026.

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