Geophagus neambi

Geophagus neambi Lucinda, Lucena & Assis, 2010

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drawing shows typical species in Cichlidae.

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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335)neambi: The specific name neambi is a patronym for the Núcleo de Estudos Ambientais (Neamb), Universidade Federal do Tocantins in recognition of its effort in studying the Rio Tocantins Ichthyofauna (Ref. 84008).
Eponymy: This honours an institution: Núcleo de Estudos Ambientais (Neamb), Universidade Federal do Tocantins (Brazil), for its effort in studying the Rio Tocantins ichthyofauna. (Ref. 128868), visit book page.

Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie

; süßwasser demersal. Tropical; 10°S - 11°S, 48°W - 49°W

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South America: Brazil. Known from upper and middle portions of the Rio Tocantins drainage (Ref. 84008).

Größe / Gewicht / Alter

Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 20.3 cm SL Männchen/unbestimmt; (Ref. 125983); 19.2 cm SL (female); max. veröff. Gewicht: 373.60 g (Ref. 125983); max. veröff. Gewicht: 373.60 g

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

The lack of head markings distinguishes Geophagus neambi from G. grammepareius, G. taeniopareius, G. harreri, G. argyrostictus, and G. gottwaldi which exhibit a complete infra-orbital stripe, and from G. dicrozoster, G. winemilleri, G. brachybranchus, and G. proximus, which exhibit a black preopercular marking. Preserved specimens of Geophagus neambi can be distinguished from all other Geophagus species without head markings by the possession of eight or nine vertical, parallel bars along the flank, the bar containing mid-lateral spot bifurcate above and below mid-lateral spot (vs. bars absent in G. megasema, G. camopiensis, and G. altifrons; four in G. surinamensis and G. parnaibae, and six in G. abalios and G. brokopondo). Additionally the bar 4 containing the mid-lateral spot (vs. bar 3), followed by bifurcate or almost divided bars (vs. solid bars), and breeding adults with bright orange chest (vs. breeding adults with red bright orange chest, see López-Fernández & Taphorn, 2004: fig.4) differs G. neambi from G. abalios. From G. brokopondo, G. sveni is further distiguished by the conspicuous bifurcate vertical bars (vs. faint solid bars). Geophagus neambi also differs from the sympatric and syntopic Geophagus sveni by the presence of eight or nine conspicuous bifurcated vertically bars (vs. five solid bars); live specimens with anterior portions anterior portions of horizontal stripes slightly more orange than the posterior portions (vs. anterior portions conspicuous reddish and posterior portions orange) and three iridescent blue vertical spots absent on preopercele (vs. presence of such spots on preopercule) (Ref. 84008).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven

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Lucinda, P.H.F., C.A.S. Lucena and N.C. Assis, 2010. Two new species of cichlid fish genus Geophagus Heckel from the Rio Tocantins drainage (Perciformes: Cichlidae). Zootaxa 2429:29-42. (Ref. 84008)

IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))

  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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Schätzungen auf der Grundlage von Modellen

Phylogenetischer Diversitätsindex
(Ref. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.02570 (0.01968 - 0.03358), b=3.05 (2.97 - 3.13), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophische Ebene
(Ref. 69278)
2.3   ±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.).
Anfälligkeit der Fischerei
(Ref. 59153)
Low to moderate vulnerability (28 of 100). 🛈