Ytu Astyanax
📖 Overview
Occurs in rapids and small falls with clear flowing water, pools and some areas with slow current . The depth of the streams ranges from 0.40 to 1.3 m and the bottom is composed of sand and mostly stones .
🔬 Taxonomy
🐟 Physical Description
Differs from other species of the genus by the following combination of characters: 17-21 branched anal fin rays, predorsal length (52.5-55.4% SL), preventral length (47.8-51.0% SL), preanal length (63.0-68.8% SL), caudal peduncle length (12.3-14.3% SL) and eye diameter (33.1-37.0% HL). Further differs by having seven to ten dentary teeth decreasing in size gradually, inner premaxillary teeth wider distally; one vertically elongated black humeral spot, separated from a second posterior one by 3 or 4 scales; narrow lateral band becoming wider below middle of dorsal fin base .
🌀 Behaviour
Behavioural data for Ytu Astyanax is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic; depth range 0 - 1 m . Subtropical South America: Rio Uruguay basin in Argentina.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Ytu Astyanax |
| 🇪🇸Spanish | Mojarra |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
👥 Community & Contribute
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