Astyanax Joaovitori
📖 Overview
Astyanax Joaovitori (Astyanax joaovitori) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 7.7 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 10 - 11; Anal soft rays: 19; Vertebrae: 33 - 34. Astyanax joaovitori is distinguished from its congeners belonging to the A. scabripinnis species complex by the following combination of characters: lateral dark stripe beginning immediately behind the upper margin of the opercle; presence of a single vertical humeral dark blotch; a scattered pattern of dark chromatophores below lateral line, at the abdominal region; anal fin with 15 to 20 branched rays; 33 to 36 perforated scales on lateral line; dentary teeth decreasing abruptly in size from the fourth or fifth tooth onwards; and 13 or 14 scales around caudal peduncle .: fusiform / normal.
🌀 Behaviour
Behavioural data for Astyanax Joaovitori is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical South America: Upper rio Araguaia and some tributaries in Mato Grosso State, Brazil.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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