Astyanax varzeae

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Astyanax varzeae Abilhoa & Duboc, 2007

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drawing shows typical species in Characidae.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335);  varzeae: Named for its type locality, rio da Várzea drainage, a tributary of the upper rio Iguaçu basin..

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

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Rio da Várzea headwaters of the Rio Iguaçu basin in Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.3 cm SL male/unsexed; (Ref. 72395)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 11; Anal soft rays: 20; Vertebrae: 36 - 38

Biology     Glossary (e.g. epibenthic)

Inhabits headwater stream with clear water, light to moderate current and bottom consisting of stones, sand and moderate amount of vegetal debris (Ref. 72395).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Abilhoa, V. and L.F. Duboc, 2007. A new species of the freshwater fish genus Astyanax (Ostariophysi: Characidae) from the rio Iguaçu basin, southeastern Brazil. Zootaxa 1587:43-52. (Ref. 72395)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
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Occurrences
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Ecology
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Common names
Synonyms
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Predators
Ecotoxicology
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Maturity
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Fecundity
Eggs
Egg development
Age/Size
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Length-weight
Length-length
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Larvae
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.9   ±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).