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Astyanax tehuacanensis Schmitter-Soto, 2017

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Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335);  tehuacanensis: Named for its type locality, Río Salado south of Tehuacán in central Mexico. An adjective..

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

; Γλυκού νερού βενθοπελαγικό. Tropical

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Central Ameica: endemic to the Río Salado (Gulf of Mexico versant), south of Tehuacán in central Mexico.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm SL αρσενικό/απροσδιόριστο; (Ref. 118583)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Μαλακές ραχιαίες ακτίνες (συνολικά) : 9; Μαλακές εδρικές ακτίνες: 18 - 23; Σπόνδυλοι: 32 - 33. Astyanax tehuacanensis is distinguished from other congenes in central Mexico by the following characters: rays on anal fin, mean fewer than 24 (vs. mean 24 or more in A. aeneus); total gill rakers, mean fewer than 20 (vs. mean 22 or more in A. finitimus); head shorter, mean 21.9% SL (vs. mean 23.8% or more); snout shorter, mean 3.3% SL (vs mean 4.2% or more); interorbital, mean 8% SL (mean 9-10% SL in A. acatlanensis and A. mexicanus); pectoral fin shorter, mean 19.3% SL (vs. mean ca. 21% in A. acatlanensis and A. mexicanus); anterior fontanel longer (vs. shorter); infraorbital II, triangular with an angled base (vs. base convex in A. acatlanensis, A. aeneus and A. mexicanus); epibranchial III, distal segment straight (vs. curved in A. finitimus and A. mexicanus); first dorsal pterygiophore, dorsal edge angled (vs. curved in A. mexicanus) (Ref. 118583).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Schmitter-Soto, J.J., 2017. A revision of Astyanax (Characiformes: Characidae) in Central and North America, with the description of nine new species. J. Nat. Hist. 51(23/24):1-94. (Ref. 118583)

IUCN Red List Status (Ref. 130435)

  Ευάλωτο, βλέπε Κόκκινη Λίστα (VU) (D2); Date assessed: 10 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Diet compositions
Food consumptions
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Length-weight rel.
Length-length rel.
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Διαδικτυακές πηγές

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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=0.01148 (0.00526 - 0.02507), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  2.9   ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref. 120179):  Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).