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> Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Xenoclarias: Greek, xenos = strange + Latin, clarias, -a, -um = shining (Ref. 45335).
More on author: Norman.

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

; süßwasser demersal; tiefenbereich 10 - 79 m (Ref. 104726). Tropical; 1°N - 3°S

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Africa: endemic to Lake Victoria, occuring in the deeper waters (Ref. 78218, 104723, 104726).

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 20.9 cm SL Männchen/unbestimmt; (Ref. 104726)

Absence of suprabranchial respiratory organs and reduction of suprabranchial chamber as adaptation to deep-water habitat (Ref. 104723, 104726). Inhabits deeper areas of Lake Victoria (10 to 79 m); mostly found over muddy bottoms, not far from steep, rocky zones where it is believed to breed; sexual maturity is reached at ca. 11 cm SL (Ref. 104726). Entirely insectivorous, with preference of Chironomidae over Chaoboridae larvae (Ref. 1047726), but fish remains have also been found (Ref. 78218). Xenoclarias eupogon is an endemic species of Lake Victoria which is threatened with extinction or has already disappeared due to predation by Nile perch and other recent ecological impacts (Ref. 35948).

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

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Gee, J.M., 1975. The genus Xenoclarias (Pisces, Siluriformes) in Lake Victoria, with a redescription of Xenoclarias eupogon and notes on the biology of the species. J. Zool., Lond., 175:201-217. (Ref. 104726)

IUCN Rote Liste Status (Ref. 130435)

vom Aussterben bedroht (CR) (A2acde); Date assessed: 30 September 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: nicht kommerziell

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.6 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (16 of 100).

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Xenoclarias eupogon (Norman, 1928)