分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Orthochromis: Greek, ortho = straight + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
Africa: endemic to the Malagarasi River, only known the Mazimero and Nanganga rivers in Burundi (Ref. 28906).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 7.2 cm SL オス/雌雄の選別がない; (Ref. 28906)
背面の脊椎 (合計) : 16 - 17; 背鰭 (合計) : 8 - 10; 肛門の骨: 3; 臀鰭: 9 - 10; 脊つい: 27 - 29.
Inhabits clear water rivulets with sandy and stony bottoms; sand, plant debris and algae belonging to Bacillariophyceae, Chlorophyceae and Cyanophyceae found in stomch and gut; mouthbrooder (Ref. 28906).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
A mouth brooding species. A ripening female of 5.2 cm SL contained 24 eggs of about 3 mm diameter in the abdominal cavity.
De Vos, L. and L. Seegers, 1998. Seven new Orthochromis species (Teleostei: Cichlidae) from the Malagarasi, Luiche and Rugufu basins (Lake Tanganyika drainage), with notes on their reproductive biology. Ichthyol. Explor. Freshwat. 9(4):371-420. (Ref. 28906)
IUCNのレッドリストの状況は (Ref. 130435)
絶滅危惧 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 31 January 2006
Human uses
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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 2.0 ±0.00 se; based on food items.
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
