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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); usanguensis: Named in reference to the Usangu Flats, the area of origin (Ref. 98818).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi. Tropical
Africa: seasonal pools and swamps on the Usangu Flats, Great Ruaha River system in Tanzania (Ref. 98818).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm SL con đực/không giới tính; (Ref. 98818)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 14 - 17; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 14 - 17. Diagnosis: Nothobranchius usanguensis is distinguished from all other members of the Nothobranchius neumanni species group by the following combination of characters: in the male, the dorsal profile is convex with almost no transition between the head and body; the anal fin is yellow with a dark red marbled pattern, a distinct dark red, or less commonly black, margin and a light blue-gray proximal part; the caudal fin is red or partially red with a darker red or red-gray terminal band that may be preceded by a narrow relatively light red band (Ref. 98818).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Wildekamp, R.H., B.R. Watters and K.M. Shidlovskiy, 2014. Review of the Nothobranchius neumanni species group with descriptions of three new species from Tanzania (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(1):2-30. (Ref. 98818)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).