分類 / Names
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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: Weber.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Tropical; 6°N - 30°S
Africa: Zambezi, Kafue and Shire Rivers; Upper Congo system; Lakes Tanganyika, Bangweulu, Kobo, Niumbe, Mweru and Malawi; Chobe, Okavango and Cunene Rivers; Pungwe, Sabi, Lundi Rivers and Zimbabwean tributaries of the Limpopo River; Incomati, Pongolo and Umgeni rivers and Lake Sibaya in Natal and Transvaal tributaries of the Limpopo (Ref. 3820). Also in the middle Congo (Ref. 106245), including the Ubangi (Ref. 248) and several southern tributaries of the Kasai (Ref. 248, 11970) and in the Cuanza in Angola (Ref. 120641).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 35.0 cm SL オス/雌雄の選別がない; (Ref. 52193)
背面の脊椎 (合計) : 0; 背鰭 (合計) : 71 - 94; 臀鰭: 60 - 89; 脊つい: 56 - 61. Diagnosis: Head rectangular in dorsal outline; snout broadly rounded; eyes dorsally located; frontal fontanelle `knife-shaped'; occipital fontanelle very long and oval-shaped; the `dermosphenotic' and supraorbital bones become joined in specimens of 80-90 mm standard length; tooth plates relatively small; dorsal and anal fins not confluent with caudal fins; gill rakers relatively long, slender and distantly set; openings of the secondary sensory canals arranged in regular pattern on the flanks (Ref. 248). Characterised by a relatively small, short head, 4-5 times in standard length, long barbels reaching to behind the head, and an elongated slender body with a long anal fin (Ref. 52193).
Facultative air-breathing (Ref. 126274); Lives in vegetated areas in shallow and swampy places around the lake. Occasionally found in cataracts, hiding under rocks (Ref. 248). The species is omnivorous (Ref. 78218) and feeds on insects (Coleoptera, ants, Chironomid larvae) (Ref. 248 & 5595), plant seeds and other fishes (Ref. 78218).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
Human uses
水産業: 食糧水産; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00556 - 0.01882), b=3.03 (2.87 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.5 ±0.52 se; based on food items.
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).
