blue-striped rivulus
📖 Overview
Especially found in very shallow parts of small brooks where water is brown and rich in tannin and the substrate consists of decaying vegetation . Stays in the shaded areas of small, slow flowing rivers, sympatric with R. geayi, R. agilae, R. lungi, and R. cladophorus. Sexual differentiation is possible at 4 months of age . Not a seasonal killifish . Reproduction is not so prolific; is considered difficult to maintain in the aquarium. Sexual differentiation is possible at 3 months but reproduction occurs for the first time at around one year . If pursued by a predator this species may jump on land where it rests for a few seconds before re-entering the water .
🔬 Taxonomy
🐟 Physical Description
Physical description for blue-striped rivulus is currently being compiled.
🌀 Behaviour
Behavioural data for blue-striped rivulus is currently being reviewed.
🦐 Diet
Diet information for blue-striped rivulus is currently being compiled.
🥚 Reproduction
Eggs measure 1.6 mm diameter. Sexes can be distinguished at about 3 months of age. Dominant males are followed by 1-3 females.
🌍 Habitat & Distribution
Freshwater; benthopelagic; pH range: 6.0 - 6.5; dH range: 6 - ?; non-migratory. Tropical; 22°C - 25°C South America: Oyapock River basin and adjacent coastal drainages.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | blue-striped rivulus |
| 🌍CES | rivulus modropásý |
| 🇫🇷French | Killi, Rivule néon, Rivule bleu |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Rivulus xiphidius | Huber | 1979 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) — 36 records indexed .
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