Aphyocharax yekwanae

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Aphyocharax yekwanae Willink, Chernoff & Machado-Allison, 2003

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drawing shows typical species in Characidae.

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> Characiformes (Characins) > Characidae (Characins; tetras) > Aphyocharacinae
Etymology: Aphyocharax: Greek, aphye, -es, sardine, anchovy + Greek, charax = a marine fish; diminutive (Ref. 45335); yekwanae: Named for the Ye'Kwana tribe that lives and oversees most of the Río Caura basin.
Eponymy: This species is named after the Ye’Kwana people (also ‘Ye-kuana’ – see above). They live in and oversee most of the Río Caura basin, Brazil. They are well known for their “…fervid desire to protect and manage their home territory and its environment.” (Ref. 128868), visit book page.

Environment: milieu / Klimaatzone / Diepte / distribution range Ecologie

; zoet water pelagisch. Tropical

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South America: Venezuela.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 5.6 cm SL mannelijk / geslacht onbekend; (Ref. 49521)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale zachte stralen (totaal) : 9; Anale zachte stralen: 15 - 17; Wervels: 36 - 37. Body with bright red coloration, from vertical through second to fifth branched anal-fin ray to vertical through apex of fork in caudal fin; adipose and posterior 2/3 of anal fin red. This coloration is believed to be autapomorphic. Distal margin of anal fin clear. Maxillary teeth 11-16; incompletely toothed maxilla (Ref. 49521).
Body shape (shape guide): fusiform / normal; Cross section: compressed.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Common in the lee side of islands and protected backwaters of the main river channel; sand with some rocks bottom. Also collected near mouths of streams where it could be muddy and covered with terrestrial plant leaves. Aquatic vegetation almost always absent; water clear to moderately turbid (Ref. 49521).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Willink, P.W., B. Chernoff, A. Machado-Allison, F. Provenzano and P. Petry, 2003. Aphyocharax yekwanae, a new species of bloodfin tetra (Teleostei: Characiformes: Characidae) from the Guyana Shield of Venezuela. Ichthyol. Explor. Freshwat. 14(1):1-8. (Ref. 49521)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)

  Kwetsbaar (VU) (B1ab(iii)+2ab(iii)); Date assessed: 18 August 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100). 🛈