Klassificering / Namn
Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
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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).
Eponymy: Dr Ubirajara Ribeiro ‘Bira’ Martins de Souza (1932–2015) was a Brazilian entomologist who spent his career researching at the Museum of Zoology of the University of São Paulo (1959–2015) which had awarded his PhD (1975) and where he became a [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten pelagiska. 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).
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 3.0 cm SL hane/ej könsbestämd; (Ref. 92338); 2.7 cm SL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
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).
Body shape (shape guide): elongated.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |