Knife livebearer
📖 Overview
Inhabits waters of low to moderate velocity, between 0 and 300 m elevation. Lives on creeks of more than 0.5 m deep, in ditches and near shorelines of large rivers. Generally swims in small groups at a depth of 20 cm. Insectivorous, the young eat mainly aquatic insects and the adults feed specifically on terrestrial insects . Found in a rapidly flowing rainforest stream .
🔬 Taxonomy
🐟 Physical Description
Physical description for Knife livebearer is currently being compiled.
🌀 Behaviour
Behavioural data for Knife livebearer is currently being reviewed.
🦐 Diet
Diet information for Knife livebearer is currently being compiled.
🥚 Reproduction
Gestation lasts for about 24 days. Produces 10 to 30, rarely more, young. Reaches sexual maturity in about 5 or 6 months.
🌍 Habitat & Distribution
Freshwater; pelagic; pH range: 6.0 - 8.0; dH range: 5 - 12; non-migratory. Tropical; 24°C - 26°C Central America: Costa Rica, Panama and Nicaragua.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | knife livebearer |
| 🌍CES | alfaro ostrobřiché |
| 🇩🇰Danish | Knivtandkarpe |
| 🇵🇹Portuguese | Barrigudinho-branco |
| 🇷🇺Russian | Альфаро |
| 🇪🇸Spanish | Alumina · Olomina · Olomina de Alfaro |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Alfaro acutiventralis | Meek | 1912 | Synonym |
| Alfaro amazonum | Regan | 1911 | Synonym |
| Petalosoma amazonum | Regan | 1911 | Synonym |
| Petalosoma cultratum | Regan | 1908 | Synonym |
| Petalurichthys amazonum | Regan | 1911 | Synonym |
| Petalurichthys cultratus | Regan | 1908 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) — 12 records indexed .
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