Hemigrammus durbinae

Hemigrammus durbinae Ota, Lima & Pavanelli, 2015

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Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Acestrorhamphidae (American tetras) > Pristellinae
Etymology: Hemigrammus: Greek, hemi = half + Greek, gramma = letter, signal (Ref. 45335)durbinae: Named for Marion Durbin Ellis (née Marion Lee Durbin) (born 1887, deceased apparently in 1972), Carl Eigenmann´s student and latter a limnologist and environmental toxicologist working at the University of Missouri in Columbia, who devoted herself diligently into the most comprehensive study on Hemigrammus so far. A genitive noun.
Eponymy: Marion Lee Ellis née Durbin (1887–1972) was an American ichthyologist, entomologist, limnologist and environmental toxicologist. [...] (Ref. 128868), visit book page.

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

; eau douce benthopélagique. Tropical

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

South America: Amazon basin at the middle and upper portions of the rio Madeira, lower rio Purus, middle rio Solimões/Amazonas, and lower rio Tapajós in Brazil; rio Paraguai basin in Brazil and Paraguay; and from the rio Paraná basin in Paraguay.

Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm
Max length : 2.8 cm SL mâle / non sexé; (Ref. 101340)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 10 - 11; Rayons mous anaux: 20 - 25; Vertèbres: 32 - 34. Hemigrammus durbinae can be diagnosed from most congeners, except H. marginatus, by lacking a conspicuous humeral spot and by having two dark patches of pigmentation on caudal-fin lobes. It differs from H. marginatus by having two conspicuous patches of dark pigmentation occupying most of the caudal-fin lobes, except the tips, which are hyaline (vs. relatively faint dark pigmentation along caudal-fin distal portion, tips of caudal fin dark) and by having two dark narrow stripes along anal-fin base, the first sub-parallel to anal-fin base, extending approximately along region where hypaxial musculature and the muscles of anal fin meet, and the second along anal-fin base (vs. only an inconspicuous dark stripe along anal-fin base present). Other characters useful to differentiate it from H. marginatus include the following: 5-8 pored lateral line scales (vs. 8-14); upper jaw length 32.1-41.6% in head length (vs. 42.3-46.0%); length of dorsal-fin base 9.9-13.1% of SL (vs.13.6-15.1% of SL); length of dorsal-fin length 22.7-27.1% of SL (vs. 27.6-32.6% of SL); and distance from eye to dorsal-fin origin 38.7-45.9% of SL (vs. 34.6-37.8% of SL) (Ref. 101340).
Body shape (shape guide): elongated.

Biologie     Glossaire (ex. epibenthic)

Found in large floodplain lakes. Stomach contents were composed mainly of terrestrial insects (Ref. 101340).

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Téléchargez vos références | Références | Coordinateur | Collaborateurs

Ota, R.P., F.C.T. Lima and C.S. Pavanelli, 2015. A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the centran and western Amazon and rio Paraná-Paraguai basins. Zootaxa 3948(2):218-232. (Ref. 101340)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

Plus d'informations

Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Écologie
Écologie
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génôme
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Timbres, pièces de monnaie, divers
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Estimations basées sur des modèles

Indice de diversité phylogénétique
(Réf. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00589 (0.00226 - 0.01533), b=3.16 (2.94 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique
(Réf. 69278)
3.2   ±0.4 se; based on size and trophs of closest relatives
Résilience
(Réf. 120179)
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche
(Ref. 59153)
Low vulnerability (10 of 100). 🛈