Classificação / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); epiagos: The name epiagos from the Greek, epi for above, and agos meaning rocky cleft, refers to the presence of the species on area above the waterfall and valley formed by rio Ferro Doido..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce pelágico(a,os,as). Tropical; 11°S - 12°S, 41°W - 42°W
South America: Brazil from rio Ferro Doido, a tributary of rio Jacuípe, itself a tributary of the rio Paraguaçu, a coastal drainage of eastern Brazil (Ref. 79518). Latitude wrongly reported in Ref. 79518 as 11°37'N.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 5.9 cm SL macho/indeterminado; (Ref. 79518)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Astyanax epiagos can be distinguished from most of its congeners and from all other Astyanax species known from northeastern Brazilian drainages (A. brevirhinus, A. fasciatus, A. intermedius, A. lacustris, A. pelecus, A. rivularis, and A. taeniatus) by a vertically elongated humeral blotch and body highest along vertical through midlength of pectoral fin (vs. distinctly horizontally elongated humeral spot and highest body depth just anterior to dorsal-fin origin in A. lacustris and A. pelecus), absence of dark stripe from humeral region to caudal peduncle (vs. well defined dark midlateral stripe along most of body length in A. intermedius, A. pelecus, A. rivularis, A. taeniatus), 2-4 outer premaxillary teeth and total anal fin rays 17-21 (vs. 5 teeth and 28 anal-fin rays in A. brevirhinus).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Zanata, A.M. and P. Camelier, 2008. Two new species of Astyanax (Characiformes: Characidae) from upper rio Paraguaçu and rio Itapicuru basins, Chapada Diamantina, Bahia, Brazil. Zootaxa 1908:28-40. (Ref. 79518)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 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).
Nível Trófico (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
