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> Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water.
More on author: Trewavas.

Environment: milieu / climate zone / rango de profundidad / distribution range Ecología

; agua dulce demersal. Tropical; 20°C - 26°C (Ref. 2060); 18°S - 20°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

Africa: known only from the type locality, Aigumas Cave, North Otavi, Namibia. Major threat is depletion of ground water (Ref. 7248).

Tamaño / Peso / Age

Madurez: L_m ? range ? - ? cm
Max length : 16.1 cm SL macho / no sexado; (Ref. 7248)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 71 - 76; Radios blandos anales: 66 - 61. Devoid of pigment. Eyes extremely small; covered with skin; dorsally located. Head rectangular in dorsal outline; snout broadly rounded. Frontal fontanelle long and narrow; occipital fontanelle long and oval-shaped. Supraorbital and `dermosphenotic' bones fused. Premaxillary tooth plate rather broad. gill rakers long, slender and distantly set. Suprabranchial organ greatly reduced. Openings of the secondary sensory canals regularly arranged along flanks.
Body shape (shape guide): elongated; Cross section: circular.

Facultative air-breathing (Ref. 126274); Lacks pigment. Lives in caves (Ref. 248) and is adapted to life underground (Ref. 78218); over shelves in open, clear water. Feeds on bat droppings, animal carcasses and terrestrial insects that fall into the lake (Ref. 7248).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Teugels, G.G., 1986. A systematic revision of the African species of the genus Clarias (Pisces; Clariidae). Ann. Mus. R. Afr. Centr., Sci. Zool., 247:199 p. (Ref. 248)

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

Critically Endangered (CR) (B1ab(iii)+2ab(iii)); Date assessed: 01 March 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: sin interés; Acuario: Comercial

FAO - Publication: search | FishSource |

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Ecología Trófica
Food items (preys)
Composición de la dieta
consumo de alimento
Food rations
Despredadores

Ecología
Ecología
Home ranges

Population dynamics
Coeficiente del crecimiento para
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamiento
Abundancia

Life cycle
Reproducción
Madurez
Maturity/Gills rel.
Fecundidad
Puesta
Spawning aggregations
Huevos
Egg development
Larva
Dinámica larvaria

Distribución
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Ecosistemas
Ocurrencias, apariciones
Introducciones
BRUVS - Videos

Anatomy
Superficie branquial
Brain
Otolith

Physiology
Body composition
Nutrients
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genética
Genome
Genética
Heterozygosity
heritabilidad

Human related
Aquaculture systems
Perfiles de acuicultura
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Ciguatera cases
Stamps, coins, misc.

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Taxonomy
Nombres comunes
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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Referencia 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00357 - 0.01766), b=2.96 (2.78 - 3.14), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Nivel trófico (Referencia 69278): 2.8 ±0.26 se; based on food items.

Resiliencia (Referencia 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Assuming tm=1; Fec=50).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100). 🛈

Clarias cavernicola Trewavas, 1936