Teleostei (teleosts) >
Acropomatiformes (Oceanic basses) >
Pempheridae (Sweepers)
Etymology: Pempheris: Greek, pempheris = the name of a fish (Ref. 45335); bexillon: Name from Greek meaning banner or flag, referring to the bright yellow and black dorsal fin.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; depth range ? - 10 m (Ref. 95447). Tropical
Western Indian Ocean: Mozambique Channel (Bassas da India, Anjouan, Grande Comore) and on or near the Mascarene Plateau (Agaléga Islands, Cargados Carajos, Mauritius, and Rodrigues).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.7 cm SL male/unsexed; (Ref. 95447)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 38 - 45; Vertebrae: 25. This species is distinguished by the following characters: a yellow or yellowish dorsal fin with a black, distal margin along its full length, broadest on anterior rays (pupil-diameter width), gradually narrowing posteriorly, and the last ray with only a black tip; differs from its congeners by having large, deciduous cycloid scales on the flank; pectoral-fin base with a dark, oblong spot; anal fin with a dark margin along its length; 38-45 segmented anal-fin rays; 56-65 lateral-line scales; 31-35 total gill rakers on the first arch (Ref. 95447).
Collected with ichthyocide on coral or rocky reefs at depths less than 10 m in areas with ledges, caves, and surge channels (Ref. 95447).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mooi, R.D. and J.E. Randall, 2014. Pempheris bexillon, a new species of sweeper (Teleostei: Pempheridae) from the Western Indian Ocean. Zootaxa 3780(2):388-398. (Ref. 95447)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00591 - 0.03225), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
