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Siluriformes (Catfishes) >
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
Ekologi
; sötvatten bottenlevande; pH range: 7.0 - 8.0; dH range: ? - 25; flodvandrande (Ref. 51243). Tropical; 24°C - 26°C (Ref. 2059); 35°N - 10°N
Africa: West African rivers from Senegal to Chad basins, and more east in the Nile and Lake Turkana basins (Ref. 96687).
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 54.0 cm SL hane/ej könsbestämd; (Ref. 3236); publicerad maxvikt: 4.4 kg (Ref. 3236)
Taggstrålar i ryggfenan (totalt) : 2; Mjukstrålar i ryggfenan (totalt) : 7; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 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).
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
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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 Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Akvarium: Kommersiell
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00221 - 0.01248), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.41 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (46 of 100).
Nutrients (Ref.
124155): Calcium = 111 [67, 213] mg/100g; Iron = 1.33 [0.82, 2.11] mg/100g; Protein = 16.6 [15.6, 17.6] %; Omega3 = 0.263 [0.112, 0.614] g/100g; Selenium = 76.6 [35.9, 181.6] μg/100g; VitaminA = 28.4 [11.5, 63.5] μg/100g; Zinc = 1.58 [1.12, 2.21] mg/100g (wet weight);
