Pempheris adusta  Bleeker, 1877

Dusky sweeper
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Pempheris adusta   AquaMaps   Data sources: GBIF OBIS
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Image of Pempheris adusta (Dusky sweeper)
Pempheris adusta
Picture by King, D.R.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Pempheridae (Sweepers)
Etymology: Pempheris: Greek, pempheris = the name of a fish (Ref. 45335);  adusta: Name from Latin 'flavi' meaning yellow, and 'cycla' for ring, referring to the bright yellow ring encircling the pupil, which is often still apparent in recently preserved specimens.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 0 - 20 m (Ref. 95675).   Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: widely distributed and abundant in the Indian Ocean (including the Red Sea to Andaman Sea) to the Pacific; not in the Mediterranean Sea. Regional variations present in the Indian, Andaman and the Pacific.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 6645)

Short description Morphology | Morphometrics

Dorsal spines (total): 6; Dorsal soft rays (total): 8-10; Anal spines: 3; Anal soft rays: 36 - 45; Vertebrae: 25. This species is distinguished by the following characters: pectoral fin base with a faint blackish spot; pored lateral-line scales 56-64 (Andaman Sea 52-58; Pacific 51-62); scale rows above lateral line 4.5-6.5 (usually 5.5; Andaman Sea and the Pacific Ocean, 4.5-5.5, usually 4.5); circumpeduncular scales 14-18 (usually 16); outer edge of anal fin with a distinct blackish band (rarely faint or only anterior half prominent; usually none in Pacific); posterior edge of caudal fin with a blackish band (caudal fin whole yellowish in Andaman Sea); upper-jaw length 14.2-15.6% SL; body depth 41.4-45.4% SL. Individuals in the Pacific are distinguished from its congeners by the following set of characters: ctenoid and deciduous scales are thin and semicircular in shape; 51-62 pored lateral-line scales; 4.5-5.5 (usually 4.5) scale rows above lateral line; pectoral fin base with a faint blackish spot; anal fin usually have no blackish outer margin; anal fin base with a dusky band (Ref. 95675).

Biology     Glossary (e.g. epibenthic)

This fish is common on coral reefs (Ref. 6645); forming aggregations in caves or crevices or under overhangs (Ref. 48636) by day, but a few may at times be seen in the open, close to the shelter of reefs. This species is also observed forming small groups with Myripristis murdjan at 0.5-1 m below the surface. At night, it is known to feed on zooplankton (Ref. 94773). Spawning occur during April to June, and is year-round in Okinawa I. (Koeda et al., in press - in Ref. 95675). Spawning occurred after sunset with individuals larger than 11 cm SL joining the spawning group (Ref. 95675). Flesh is edible (Ref. 12484).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Koeda, K., T. Yoshino, H. Imai and K. Tachinara, 2014. A review of the genus Pempheris (Perciformes, Pempheridae) of the Red Sea, with description of a new species. Zootaxa 3793(3):301-330. (Ref. 95675)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Aquarium: commercial; bait: usually
FAO(Publication : search) | FishSource |

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 22.7 - 29.2, mean 28.2 (based on 3783 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00666 - 0.03770), b=2.99 (2.78 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (24 of 100) .