Astyanax Abramis
📖 Overview
Astyanax Abramis (Astyanax abramis) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 14 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 1; Dorsal soft rays (total): 10; Anal spines: 0; Anal soft rays: 30 - 34. : short and / or deep.
🌀 Behaviour
Behavioural data for Astyanax Abramis is currently being reviewed.
🦐 Diet
Astyanax abramis is a highly-adaptable omnivore that lives in regions strongly influenced by flood cycles. The intestines can become larger in periods of food scarcity, which allows it to eat items that are more difficult for it to digest, like plant material. Juveniles, being smaller, are not afforded as much flexibility, and as such are sometimes more carnivorous than the omnivorous adults. Other studies report that the juveniles are more herbivorous than the adults, but this is likely explained by environmental differences; there is also evidence that general food abundance influences diet (such as increased allochthonous plant consumption in areas with plentiful riparian vegetation), which means that the role of A. abramis in the trophic system changes depending on the region. Disregarding age, however, smaller adults also tend to be more carnivorous than larger adults, further diversifying observed feeding habits.
🥚 Reproduction
Reproduction data for Astyanax Abramis is currently being compiled.
🌍 Habitat & Distribution
Freshwater; benthopelagic; pH range: ? - 7.2; dH range: ? - 15. Subtropical; 23°C - 26°C South America: La Plata basin and upper Amazon and Meta River basins.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Tetragonopterus abramis | Jenyns | 1842 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) — 10 records indexed .
👥 Community & Contribute
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