分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Chromidotilapia: Greek, chromis = a fish, perhaps a perch + Bechuana, African native thiape = fish (Ref. 45335).
Eponymy: Dr Albert Karl Ludwig Gotthilf Günther (1830–1914) was a German-born British zoologist, ichthyologist and herpetologist. [...] (Ref. 128868), visit book page.
More on author: Sauvage.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.0 - 8.0; dH range: 5 - 19; potamodromous (Ref. 51243). Tropical; 23°C - 25°C (Ref. 1672); 16°N - 4°S, 17°W - 16°E
Africa: coastal basins from the river St. John in Liberia to lower Cameroon and the Benito River in Equatorial Guinea, in forest and northern adjoining savannah; also known from the Niger and the Bénoué River (Ref. 53405). Previously, two subspecies were recognized: Chromidotilapia guntheri guntheri and Chromidotilapia guntheri loennbergi.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 6.0 range ? - ? cm
Max length : 18.0 cm SL オス/雌雄の選別がない; (Ref. 83624)
背面の脊椎 (合計) : 15 - 17; 背鰭 (合計) : 9 - 12; 肛門の骨: 3 - 4; 臀鰭: 6 - 8. Diagnosis: 21-25 rakers on first gill arch; when stressed with two continuous dark bands on body; 1st dorsal fin spine 30-35% length of fifth spine; caudal fin truncate to subtruncate; dorsal head profile straight; iris yellow to brownish, posterior half sometimes red; upper lip white or pale blue; anterior 2-3 dorsal fin spines with black interspinous membrane in juveniles (Ref. 81260).
Substrate spawning, ovophilic, pair bonding, male mouthbrooding species (Ref. 81260). Both parents take care of the young after hatching (Ref. 47115).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Male mouthbrooder; both parents take care of the young after hatching (Ref. 47115). This corrects previous information from Ref. 26489.
Daget, J., 1991. Chromidotilapia. p. 47-50. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5616)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
水産業: 商業; 水族館・水槽: 商業
用具
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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 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.01260 - 0.01737), b=2.99 (2.95 - 3.03), in cm total length, based on LWR estimates for this species (Ref.
93245).
栄養段階 (Ref.
69278): 2.6 ±0.2 se; based on diet studies.
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (tm<1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
![Image of Chromidotilapia guntheri (Guenther\](/images/thumbnails/jpg/tn_Chgun_f1.jpg "Image of Chromidotilapia guntheri (Guenther\")
![Image of Chromidotilapia guntheri (Guenther\](/images/thumbnails/jpg/tn_Chgun_f0.jpg "Image of Chromidotilapia guntheri (Guenther\")