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Acropomatiformes (Oceanic basses) >
Pempheridae (Sweepers)
Etymology: Pempheris: Greek, pempheris = the name of a fish (Ref. 45335); darvelli: Named for Brian W. Darvell, for his fieldwork in Oman resulting in the specimens and photographs of this new species.
Eponymy: Dr Brian William Darvell (d: 1948) is a chemist, academic and marine conservationist who is honorary professor at the School of Dentistry at Birmingham University, UK. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina revassocierade; djupintervall 6 - 7 m (Ref. 97766). Tropical
Western Indian Ocean: Oman.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 9.7 cm SL hane/ej könsbestämd; (Ref. 97766); 11.7 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 6; Mjukstrålar i ryggfenan (totalt) : 9; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 41 - 43; Ryggkotor: 25. This species is distinguished by the following characters: D VI,9; A III,41-43; pectoral rays 18-19; lateral-line scales 56-58; scales on anteroventral ctenoid and covering 90% of chest; gill rakers 30-32; body depth 2.1 in SL; head length 3.0-3.05 in SL; orbit diameter 7.45-7.7 in SL; caudal-fin length 3.45-3.55 in SL, moderately emarginate, caudal concavity 3.55-3.7 in head length; pectoral-fin length 3.15-3.2 in SL; colour in alcohol dark maroon brown, with the outer edge of scales broadly translucent gray; dorsal fin is pale yellowish, the distal half of first six soft rays and adjacent membranes black (dark pigment covering outer half of longest rays and adjacent membranes); anal fin and adjacent base of body darker brown than body, becoming progressively more translucent yellow distally, with a small brown spot on each scale; anal ray tips are translucent white; anterior five rays and membranes dark brown, the dark pigment also distally on the next five rays; caudal fin is dusky yellowish, darker brown basally and broadly darker all around margin; pectoral fins are yellowish gray with a large dark maroon brown spot covering entire base of fin; axil also dark maroon brown; pelvic fins are pale dusky yellowish (Ref. 97766).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Randall, J.E. and B.C. Victor, 2014. Four new fishes of the genus Pempheris (Perciformes: Pempheridae) from the western Indian Ocean. J. Ocean Sci. Found. 12:61-83. (Ref. 97766)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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).
Trofisk nivå (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
