Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: ubirajarai: From the author, Wilson Costa: "the name ubirajarai is in honour of Ubirajara Martins, entomologist at Museu de Zoologia, Universidade de Sao Paulo, professor of principles of taxonomy, who was teacher and friend during my early formation in Systematics, providing great enthusiasm for studying taxonomy of killifishes about 30 years ago" (Ref. 92338).
Environment: milieu / climate zone / depth range / distribution range
นิเวศวิทยา
; น้ำจืด ผิวน้ำ. Tropical; 17°S - 18°S, 52°W - 53°W
South America: Brazil, Estado de Goias, Municipo de Mineiros. Known only from the type locality, a stream tributary to the Babilônia River, upper Araguaia River Basin (Ref. 92338).
ขนาด / น้ำหนัก / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL เพศผู้/กระเทย; (Ref. 92338); 2.7 cm SL (female)
Short description
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Differs from all other species of the genus, except M. litteratus, by the presence of a short dark yellowish grey stripe on the caudal fin in females, connecting black caudal spot on the middle of the fin (vs. never a horizontal mark in this position) (Ref. 92338).
Life cycle and mating behavior
Maturities | การสืบพันธุ์ | Spawnings | Egg(s) | Fecundities | ตัวอ่อน
Costa, W.J.E.M., 2012. Two new species of Melanorivulus from the Caiapós hill, upper Araguaia river basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 23(3):211-218 (Ref. 92338)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Special reports
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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=0.00661 (0.00311 - 0.01404), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ระดับชั้นอาหาร (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).