Astyanax Tamiahua
📖 Overview
Astyanax Tamiahua (Astyanax tamiahua) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 6.3 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Vulnerable on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 10 - 11; Anal soft rays: 20 - 25; Vertebrae: 31 - 33. Astyanax tamiahua is distinguished from other congeners in Veracruz and northern Mexico by the following characters: body deeper, mean 35.9% SL (vs. mean 33.9% SL in A. argentatus); head length, more than 26% SL (vs. 26% or less in A. acatlanensis, A. argentatus and A. rioverde); in lateral view, supraoccipital slightly concave (vs. angled in A. finitimus); infraorbital II, triangular with an angled base (vs. with a long convex base in A. argentatus and A. mexicanus); first dorsal pterygiophore, rostral edge angled (vs. curved in A. argentatus and A. mexicanus) .: fusiform / normal.
🌀 Behaviour
Behavioural data for Astyanax Tamiahua is currently being reviewed.
🦐 Diet
Diet information for Astyanax Tamiahua is currently being compiled.
🥚 Reproduction
Reproduction data for Astyanax Tamiahua is currently being compiled.
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical Central America: Tamiahua to Nautla in northern Veracruz, Mexico.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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