Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: Pituna: Tupí, pituna = black; in Goias, Brazil; xinguensis: An allusion to the occurrence of this species in the rio Xingu.
More on authors: Costa & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande. Tropical
South America: known only from the type locality, a temporary swamp on a rio Xingu island, Brazilian Amazonian forest.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.9 cm SL hane/ej könsbestämd; (Ref. 57947); 3.0 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 9 - 10; Mjukstrålar i analfenan: 14 - 15; Ryggkotor: 28 - 29.
Found in a temporary swamp (Ref. 57947).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Costa, W.J.E.M., 2007. Taxonomy of the plesiolebiasine killifish genera Pituna, Plesiolebias and Maratecoara (Teleostei: Cyprinodontiformes: Rivulidae), with descriptions of nine new species. Zootaxa 1410:1-41. (Ref. 57947)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00315 - 0.03034), b=3.03 (2.77 - 3.29), 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
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).