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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.

Issue
Xenoclarias holobranchus Greenwood, 1958 is considered valid in Eschmeyer (CofF ver. Jul. 2011: Ref. 87661) following Ferraris (2007: Ref. 58032). It is treated here a synonym of Xenoclarias eupogon (Norman, 1928) following Gee (1975: Ref. 104726) and Teugels (1986: Ref. 3820).

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

; agua dulce demersal; rango de profundidad 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).

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 20.9 cm SL macho / no sexado; (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 Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

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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 Red List Status (Ref. 130435: Version 2024-2)

Critically Endangered (CR) (A2acde); Date assessed: 30 September 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: sin interés

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).

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

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).

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

Xenoclarias eupogon (Norman, 1928)