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Auchenoglanis biscutatus (Geoffroy Saint-Hilaire, 1809)

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Auchenoglanis biscutatus
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Strahlenflosser) > Siluriformes (Catfish) > Claroteidae (Claroteid catfishes) > Auchenoglanidinae
Etymology: Auchenoglanis: Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335);  biscutatus: Named for the country of Senegal, where the type locality is located (Ref. 85565).

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal; pH range: 7.0 - 8.0; dH range: ? - 25; potamodrom (Ref. 51243).   Tropical; 24°C - 26°C (Ref. 2059); 35°N - 10°N

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Africa: West African rivers from Senegal to Chad basins, and more east in the Nile and Lake Turkana basins (Ref. 96687).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 54.0 cm SL Männchen/unbestimmt; (Ref. 3236); max. veröff. Gewicht: 4.4 kg (Ref. 3236)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 2; Rückenflossenweichstrahlen (insgesamt): 7; Afterflossenstacheln 0; Afterflossenweichstrahlen: 6 - 8. Diagnosis: head broad (width at least 2/3 of length); snout length less than 0.9 times head width; hind margin of adipose fin nearly straight; premaxillary dentition forming (in adults) 2 well separated, kidney-shaped plates; maxillary barbels never black and reaching at least to hind margin of eye; 8-11 (usually 9 or 10) gill rakers on lower limb of first gill arch; palatine membrane bilobed (with a large and a smaller lobe); dorsal margin of cleithral process broad and flat (visible only in adults)(Ref. 57126).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Commonly occurs in running water, lakes and submerged vegetation in the Sudd, rare in fringing vegetation. Feeds on the bottom on mud, debris, insects, notably chironomid larvae and mollusks. Gravid fish are recorded throughout the year with a peak in the dry season (Ref. 28714).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Geerinckx, T. and E. Vreven, 2013. A re-evaluation of the species-level diversity within the catfish genus Auchenoglanis (Siluriformes: Claroteidae). J. Nat. Hist. 47(47-48):2979-3010. (Ref. 96687)

IUCN Rote Liste Status (Ref. 120744)

  nicht bedroht (LC) ; Date assessed: 01 May 2009

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell
FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00216 - 0.01277), b=3.09 (2.88 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.41 se; Based on food items.
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Verwundbarkeit (Ref. 59153):  Moderate to high vulnerability (48 of 100) .
Preiskategorie (Ref. 80766):   Unknown.