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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.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Tropical; 10°S - 11°S, 48°W - 49°W
South America: Brazil. Known from upper and middle portions of the Rio Tocantins drainage (Ref. 84008).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 20.3 cm SL maschio/sesso non determinato; (Ref. 125983); 19.2 cm SL (female); peso massimo pubblicato: 373.60 g (Ref. 125983); peso massimo pubblicato: 373.60 g
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
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).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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=0.02570 (0.01968 - 0.03358), b=3.05 (2.97 - 3.13), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
2.3 ±0.1 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |