Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser demersal; potamodrom (Ref. 51243). Tropical
Africa: Chad, Bénué, Niger and Volta basins (Ref. 81281). Previously, 2 subspecies were recognized: Citharinops distichodoides distichodoides in Chad and Bénué basins (Ref. 2938, 81281), and Citharinops distichodoides thomasi in Niger and Volta basins (Ref. 2938, 7095, 81281).
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm ?, range 54 - ? cm
Max length : 84.0 cm SL Männchen/unbestimmt; (Ref. 2938); max. veröff. Gewicht: 4.6 kg (Ref. 3799)
Kurzbeschreibung
Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt): 16-19; Afterflossenweichstrahlen: 20 - 23. Diagnosis: more elongate than Cithardium and Citharinus species; body depth 2.2-2.7x and head length 3-3.7x SL; caudal peduncle 0.7-1.1x long than deep; head 1.6-2.0x long than wide; short snout, 1.0-1.7x of eye diameter; pectoral fins almost half of head length; adipose fin 0.3-0.7x its distance to dorsal fin; caudal fin with symmetrical lobes (tips becoming round in adults); cycloid scales; scale formula 7.5-9.5/50-56/10.5-12.5; 7.5-9.5 scales between lateral line and dorsal fin origin; 16-19 dorsal fin branched rays; 20-23 anal fin branched rays (Ref. 2938, 81281).
Monospecific, distinguished from other genus of family by the body form which is more elongated than 2 other genus: Citharidium and Citharinus (Ref. 2938).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Gosse, J.-P., 1990. Citharinidae. p. 261-268. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren and O.R.S.T.O.M., Paris, 384 p. (Ref. 2938)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell
Mehr Information
Alter/GrößeWachstumLänge-GewichtLänge-LängeLängenhäufigkeitenMorphometrieMorphologieLarvenLarven Pop.Dyn.RekrutierungDichteBRUVS
ReferenzenAquakulturAquakultur ProfilZuchtlinienGenetikElectrophoresesVererbbarkeitKrankheitenVerarbeitungNutrientsMass conversion
PartnerBilderStamps, Coins Misc.LauteCiguateraGeschwindigkeitSchwimmstilKiemenoberflächeOtolithsGehirngrößeSehfähigkeit
Tools
Zusatzinformationen
Download XML
Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00617 - 0.04070), b=2.96 (2.74 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.0 ±0.1 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (61 of 100).
