Astyanax Epiagos

📖 Overview

Astyanax Epiagos (Astyanax epiagos) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters in pelagic environments. This species can reach a maximum total length of 5.9 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.

🔬 Taxonomy

🐟 Physical Description

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).: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Astyanax Epiagos is currently being reviewed.

🦐 Diet

Diet information for Astyanax Epiagos is currently being compiled.

🥚 Reproduction

Reproduction data for Astyanax Epiagos is currently being compiled.

🌍 Habitat & Distribution

Freshwater; pelagic. 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.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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