Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > 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..
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic. Tropical
South America: Venezuela.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.6 cm SL male/unsexed; (Ref. 49521)
Morphology | Morphometrics
soft rays: 15 - 17;
Vertebrae: 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).
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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 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
Trophic level (Ref. 69278
): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).