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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335); parnaibae: Named for the río Parnaíba basin where the species occurs.
Eponymy: These species are named after the Parnaíba River basin, Brazil. (Ref. 128868), visit book page.

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

; süßwasser benthopelagisch; pH range: 6.5 - 7.6. Tropical; 24°C - 31°C (Ref. 57445)

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South America: Rio Parnaiba drainage in Brazil.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 7.6 cm SL Männchen/unbestimmt; (Ref. 57445)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 17; Rückenflossenweichstrahlen (insgesamt) : 9 - 11; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 7 - 8. Distinguished from all its congeners by the combination of the following characters: lack of a dark infraorbital stripe or black preopercular markings; a caudal fin with distinct longitudinal bands; only 30 to 31 scales in E1 row; and small size, maximum TL approximately 16 cm (Ref. 57445).

Inhabits bare sandy bottoms in brooks and small rivers with remarkably strong current during the rainy season. Also occurs frequently in pools and ponds with more or less stagnant water during the dry season and the period of low water (Ref. 57445). A specimen measuring 6.5 cm SL has 80% plant matter (mainly seeds), aquatic insect larvae, detritus and sand grains in its stomach and adjacent intestine (Ref. 57445).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Staeck, W. and I. Schindler, 2006. Geophagus parnaibae sp. n. - a new species of cichlid fish (Teleostei: Perciformes: Cichlidae) from the Rio Parnaíba basin, Brazil. Zool. Abh. (Dresden) 55:69-75. (Ref. 57445)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02042 (0.00898 - 0.04642), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.5 ±0.1 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

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

Geophagus parnaibae Staeck & Schindler, 2006