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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Rivulinae
Etymology: Pituna: Tupí, pituna = black; in Goias, Brazil.
More on author: Costa.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Tropical

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South America: temporary swamps of the middle rio Araguaia basin in Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.3 cm SL male/unsexed; (Ref. 57947); 2.8 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 8 - 10; Anal soft rays: 14 - 16; Vertebrae: 28 - 29. Can be distinguished from all its congeners by the following combination of characters: 25-29 scales in longitudinal series; pectoral fin with vertical rows of small dark gray spots or dark gray bars in males; frontal squamation F-patterned, anterior section of supraorbital series of neuromasts continuous; dark marks on flanks mainly longitudinally arranged in females; body depth 21.3-24.6% SL in males and 18.1-23.8% SL in females; caudal peduncle depth 15.5-17.1% SL in males and 14.7-15.7% SL in females; head depth 69.4-75.4% SL in males and 65.2-68.1% SL in females; and 4-5 bars or transverse rows of spots on pectoral fins in males (Ref. 57947).

Inhabits temporary swamps, usually in open areas of savanna vegetation (Ref. 57947).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Costa, Wilson J.E.M. | Collaborators

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)

Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Pituna poranga Costa, 1989