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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); pyrrhopteryx: The specific name refers to the bright, orange-red coloration of the median fins which is present in live specimens of both sexes, juveniles as well as adults (Ref. 42172).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; djupintervall 2 - 20 m (Ref. 42172), usually 10 - 16 m (Ref. 42172). Tropical
Africa: Lake Victoria.
Length at first maturity / Size / Vikt / Age
Maturity: Lm 13.5  range ? - ? cm
Max length : 19.7 cm SL hane/ej könsbestämd; (Ref. 42172); 19.3 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 14 - 17; Mjukstrålar i ryggfenan (totalt) : 8 - 10; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8 - 10; Ryggkotor: 29 - 30. Diangosis: body moderately elongate, the head having a rather 'heavy' appearance (Ref. 42172). Snout somewhat blunt; mouth moderately oblique (Ref. 42172). Tip of the lower jaw always slightly protruding, rostral outline of lower jaw slightly convex (Ref. 42172). Strongly recurved unicuspid teeth in the oral jaws (Ref. 42172): 52-64 teeth in outer row of the premaxilla, 36-56 teeth in outer row of the lower jaw (Ref. 42172). Pectoral and pelvic fins not quite reaching the anal fin; anal and dorsal fin not reaching base of caudal fin (Ref. 42172). Cheek and nuchal area with cycloid scales only, gill cover with more cycloid scales than weakly ctenoid scales; scales on nape and body ctenoid (Ref. 42172). Live colors for males and females are black on ventral parts of head and body (Ref. 42172, 74923) and orange dorsally (Ref. 42172). All median fins orange; males and females have black pelvic fins (Ref. 42172). No midlateral band (Ref. 74923).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
van Oijen, M.J.P., 1991. A systematic revision of the piscivorous haplochromine Cichlidae (Pisces: Teleostei) of Lake Victoria (East Africa). Part I. Zool. Verh. Leiden 272:95 p. (Ref. 42172)
IUCN Red List Status (Ref. 130435: Version 2024-2)
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=0.01445 (0.00674 - 0.03099), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.1 ±0.69 se; based on food items.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).