Hyphessobrycon Nicolasi
📖 Overview
Found in a stream with clear water and rocky/sandy bottom, with irregularly distributed small stones, cobbles and boulders and with shallower sectors with fast-running water up to 60 cm deep, and deeper portions with around 2 m depth and abundant submerged vegetation .
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 10 - 12; Anal soft rays: 31 - 40; Vertebrae: 32 - 36. Can be diagnosed from other members of the genus Hyphessobrycon by the possession of a well-defined, oblique and marginal black stripe on each lobe of the caudal fin. Differs further from its congeners by the combination of the following characters: maxilla with 1-3 teeth, bearing 3-10 cusps; outer premaxillary row with 2-3 small teeth, bearing 5 or 7 cusps; iv-v, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertically elongated dark humeral spots; black caudal spot rounded or fan-shaped; dorsal and anal fins with the first rays dappled in black; and presence of minute bony hooks on the dorsal, anal and caudal fins of the mature males . : short and / or deep.
🌀 Behaviour
Behavioural data for Hyphessobrycon Nicolasi is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Subtropical South America: known from the type locality El Pelado stream, tributary of Uruguay River in Entre Ríos Province, Argentina.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🦠 Common Diseases
The following diseases are known to affect Hyphessobrycon Nicolasi.
🔍 Similar Species
👥 Community & Contribute
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