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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335); diamantinensis: The name diamantinensis refers to the Chapada Diamantina, a high plateau with predominance of Caatinga vegetation in northeastern Brazil, where the species is endemic (Ref. 118113).

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

; eau douce benthopélagique. Tropical

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South America: currently known only from the upper section of the Paraguaçu river basin, Chapada Diamantina, north-eastern Brazil (Ref. 118113).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 7.4 cm SL mâle / non sexé; (Ref. 118113)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 14; Rayons mous dorsaux (Total) : 10 - 12; Épines anales: 3; Rayons mous anaux: 7 - 8; Vertèbres: 27 - 28. Diagnosis: Geophagus diamantinensis is distinguished from all other species of the Geophagus brasiliensis species group by having the urohyal bone with a gentle anterior constriction (vs. strong constriction); presence of a small dark brow mark just posterior to pectoral fin (vs. absence); presence of a horizontal dark brown band on snout (vs. absence); and head more slender, head depth 77-86 % HL (vs. 87-122); G. diamantinensis is distinguished from G. itapicuruensis by having XIV spines on the dorsal-fin (vs. XIII), and from G. obscurus by having subterminal mouth (vs. terminal) (Ref. 118113).

Stomach content revealed that G. diamantinensis is insectivorous and feeds mainly on autochthonous resources; the main stomach contents included the following insect orders: Diptera, Ephemeroptera, Coleoptera, Trichoptera and Odonata; in addition, a residual content of vegetal material was also found (Ref. 118113).

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Référence principale Upload your references | Références | Coordinateur : Kullander, Sven O. | Collaborateurs

Mattos, J.L.O., W.J.E.M. Costa and A.C.A. Santos, 2015. Geophagus diamantinensis, a new species of the G. brasiliensis species group from Chapada Diamantina, north-eastern Brazil (Cichlidae: Geophagini). Ichthyol. Explor. Freshwat. 26(3):209-220. (Ref. 118113)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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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=0.01950 (0.00850 - 0.04473), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 2.6 ±0.1 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

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

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Geophagus diamantinensis Mattos, Costa & Santos, 2015