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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335).
Eponymy: Dr Reginald Arthur ‘Rex’ Jubb (1905–1987) was a South African ichthyologist whose bachelor’s degree was awarded by Rhodes University, Grahamstown, which also awarded him a DSc. [...] (Ref. 128868), visit book page.
Môi trường: môi trường / vùng khí hậu / Mức độ sâu / phạm vi phân phối
Sinh thái học
; nước ngọt sống nổi và đáy; không di cư. Tropical; 24°C - 26°C (Ref. 2060)
Africa: lower Tana and Sabaki river drainages in eastern Kenya and Juba river drainage in southern Somalia (Ref. 27139). Reported from the Wabi Shebele basin in Ethiopia (Ref. 58460).
Bộ gần gũi / Khối lượng (Trọng lượng) / Tuổi
Chín muồi sinh dục: Lm ?  range ? - ? cm
Max length : 6.0 cm TL con đực/không giới tính; (Ref. 27139)
It occurs in temporary pools, swamps and ditches or rain pans, usually without connection to river courses (Ref. 30558). The adults die when waterbodies dry out with low rainfall (Ref. 30558). Males display to attract ripe females, pair off and spawn, grasping the female by folding over the large dorsal and anal fins (Ref. 30558). Spawning occurs daily for an extended period with a few eggs laid at a time (Ref. 30558). It is a bottom spawner (Ref. 27139, Ref. 30558) and development is suspended when the water bodies dry out (Ref. 30558). The eggs hatch the following rainy season when the pan fills, the fish growing to maturity in a few weeks (Ref. 30558). It are aggressive predators on insects and other aquatic invertebrates (Ref. 30558); therefore it is used for mosquito larva control (Ref. 30558). It is easy to maintain in the aquarium (Ref. 27139) and thus a popular aquarium fish (Ref. 30558).
Males display to attract ripe females, pair off and spawn, grasping the female by folding over the large dorsal and anal fins; spawning occurs daily for an extended period; few eggs are laid at a time; eggs are laid in the bottom sediments and development is suspended when the waterbodies dry out; eggs can endure dessication; eggs hatch the following rainy season when the pan fills, fish growing to maturity in a few weeks; males grow larger than females and are brightly colored; usually complete their life within a year (Ref. 30558).
Wildekamp, R.H., R. Romand and J.J. Scheel, 1986. Cyprinodontidae. p. 165-276. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC; Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3788)
Tình trạng Sách đỏ IUCN (Ref. 130435: Version 2025-2 (Global))
Mối đe dọa đối với con người
Harmless
Sử dụng của con người
Các nghề cá: tính thương mại; Bể nuôi cá: Tính thương mại
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Ước tính dựa trên mô hình
Chỉ số đa dạng phát sinh loài (Tài liệu tham khảo 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00603 (0.00251 - 0.01446), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Mức dinh dưỡng (Tài liệu tham khảo 69278) |
3.2 ±0.40 se; based on food items. |
Thích nghi nhanh (Tài liệu tham khảo 120179) |
Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (tm<1). |
Sự dễ bị tổn thương của nghề đánh cá (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |
Loại giá (Ref. 80766) |
Unknown.
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