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Citharidium ansorgii  Boulenger, 1902

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Citharidium ansorgii
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Citharinidae (Lutefishes)
Etymology: Citharidium: Latin, cithara = lire like instrument, diminutive (Ref. 45335).   More on author: Boulenger.

Environment / Climate / Range Ecology

Freshwater; demersal.   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 58.6 cm SL male/unsexed; (Ref. 2938); max. published weight: 9.1 kg (Ref. 7095)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 17-19; Anal soft rays: 19 - 22. Diagnosis: snout longer than eye diameter; body depth 1.7-2.2x and head length 2.8-3.3x SL; caudal peduncle 0.8-0.9x long than deep; scale formula 12.5/46-51/14.5-16.5; 12.5 scales between lateral line and pelvic-fin base; characterized by ctenoid scales; scales without denticulations on posterior margin, but with parallel ridges prolonged as spines beyond posterior margin; short pectorals, half of head length; pelvic fins longer than pectorals, provided with scaly process at their bases; 17-19 dorsal fin branched rays; 19-22 anal fin branched rays (Ref. 2938, 81281).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: found only in the Niger basin in Nigeria (Ref. 2938, 7095, 81281). Maps in Ref. 2938, 81281, Ref. 31256 and Ref. 51193 also mention presence in Bénué basin. Species has also been reported from Chad basin in Cameroon (Ref. 51193).

Biology     Glossary (e.g. epibenthic)

Maximum TL was recorded at 69.7 cm (Ref. 7095).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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 Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries:
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00643 - 0.03908), b=3.02 (2.80 - 3.24), based on LWR estimates for this (Sub)Family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.1   ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (47 of 100) .
Price category (Ref. 80766):   Unknown.