Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch. Tropical
Africa: Kouilou (Ref. 81636) and Nyanga (Ref. 80297) basins (Republic of Congo), Ogooué (Gabon) (Ref. 81636), and rivers Guoro (Equatorial Guinea) (Ref. 68431) and Mvila (Cameroon) (Ref. 81636) in the Ntem basin. Report from the Lualaba (upper Congo basin) in Democratic Republic of the Congo (Ref. 89136) questionable as species is considered endemic to Lower Guinea (Ref. 81636).
Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm
Max length : 7.2 cm SL Männchen/unbestimmt; (Ref. 81636)
Kurzbeschreibung
Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt): 0; Rückenflossenweichstrahlen (insgesamt): 9-11; Afterflossenstacheln 0; Afterflossenweichstrahlen: 8 - 9; Wirbelzahl: 37 - 38. Diagnosis: body depth 6.65-7.2 times in SL (Ref. 89136), 11.9-15.5% SL, with greatest depth at or slightly anterior to dorsal fin (Ref. 81636). Head length 4.1-4.8 times in SL (Ref. 89134, 89136), 17.9-22.7% SL (Ref. 81636). Snout length 2.65-3 times in HL (Ref. 89136). Eye dorsolateral (Ref. 81636, 89136), 3.85-4.8 times in HL, 1.4-1.8 times in snout length (Ref. 89134, 89136), 1.1-1.5 times in interorbital distance (Ref. 89136). Interorbital distance wide, 27.8-43.4% HL (Ref. 81636). Dorsal fin origin 1.15-1.2 times further from snout tip than from caudal fin origin; anal fin origin 1.85-2.15 times further from pelvic fin origin than from caudal fin origin (Ref. 89136). Pectoral fin enlarged and paddle-shaped (Ref. 81636), 4.5-5.1 times in SL (Ref. 89134, 89136), 0.9-0.95 times longer than head (Ref. 89136). Pelvic fin 6.2-7 times in SL, 1.35-1.5 times in HL (Ref. 89136). Both pectoral and pelvic fins fan out from body in the horizontal plane formed by the ventral surface (Ref. 81636). Caudal peduncle 1.4-1.7 times longer than deep (Ref. 89134, 89136).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Poll, M., 1984. Kneriidae. p. 129-133. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3565)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Mehr Information
NamenSynonymeMetabolismusRäuberÖkotoxikologieFortpflanzungGeschlechtsreifeAblaichenSpawning aggregationFecundityEierEientwicklung
Alter/GrößeWachstumLänge-GewichtLänge-LängeLängenhäufigkeitenMorphometrieMorphologieLarvenLarven Pop.Dyn.RekrutierungDichteBRUVS
ReferenzenAquakulturAquakultur ProfilZuchtlinienGenetikElectrophoresesVererbbarkeitKrankheitenVerarbeitungNutrientsMass conversion
PartnerBilderStamps, Coins Misc.LauteCiguateraGeschwindigkeitSchwimmstilKiemenoberflächeOtolithsGehirngrößeSehfähigkeit
Tools
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).