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🌊 Marine Least Concern 🌡️ Tropical

Blackspot sweeper

Pempheris oualensis Cuvier, 1831
Max Length
22 cm
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
0–36 m
Climate
Tropical
Resilience
High
Vulnerability
28.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Occurs in clear, shallow lagoon and seaward reefs, quite common along the reef margin. Feeds on benthic and planktonic crustaceans, other small invertebrates, and fishes at night. By day, it forms aggregations in caves. Minimum depth reported taken from Ref. 128797.

Scientific Name
Pempheris oualensis
Authority
Cuvier, 1831
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
22 cm
Depth Range
0–36 m
Latitude
25°S – 30°N
Trophic Level
3.6
Resilience
High
Vulnerability
28.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 6; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 36 - 45. This species is distinguished by the following characters: body depth 1.8-2.4 in SL; dorsal soft rays usually 9; pectoral rays 16-18, usually 17; gill rakers 9-7 + 19-26; caudal fin forked. Colour overall of body copper-brown, black spot at pectoral-fin base; anterior edge of first dorsal fin blackish; basal part of anal fin dusky greyish; no black margin on anal and caudal fins .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Blackspot sweeper is currently being reviewed.

🦐 Diet

Diet information for Blackspot sweeper is currently being compiled.

🥚 Reproduction

Reproduction data for Blackspot sweeper is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 36 m . Tropical; 30°N - 25°S north to the Ryukyu Islands, south to Lord Howe and Rapa islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.6±0.49
Food Items

benthic and planktonic crustaceans, other small invertebrates, and fishes at night

📐 Morphometrics

Length–Weight Relationship: W = 0.01288 × L3 (TL)
Max TL
22cm
Dorsal Spines
6
Dorsal Rays
10
Anal Spines
3
Anal Rays
41

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
28.00/100
Low vulnerability
Trophic Level
3.6
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
30°N – 25°S
Described By
Cuvier, 1831

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Blackspot Sweeper · blacktip sweeper · Bronze Sweeper · Cave Sweeper · Copper Sweeper · Copper Sweeper, Silver sweeper · Keeled Sweeper · Oualan Bullseye · silver sweeper
🌍CES metařík měděný
🌍FIJ tina
🇫🇷French Poisson-hachette argenté · Poisson-harpe
🌍HEB גרזינון נחושתי
🇯🇵Japanese Yumehatampo · ユメハタンポ
🇵🇱Polish Zmiatacz malgaski
🇵🇹Portuguese Papudinha-das-Carolinas
🇷🇺Russian Уаланский большеглаз
🌍TAH mata'ana'ana
🇨🇳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

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 8 records indexed .

Occurrence density from GBIF View GBIF records ↗

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