Peixe-anual
📖 Overview
Peixe-anual (Hypsolebias igneus) is a ray-finned fish of the family Rivulidae. It inhabits freshwater waters in pelagic environments. This species can reach a maximum total length of 5.1 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Endangered on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 15 - 24; Anal soft rays: 20 - 25; Vertebrae: 28 - 30. Caudal peduncle of female with black spots. Male's anal fin with gray to black distal stripe; basihyal broad, 70-95% in length; and, second pharyngobranchial teeth, 5-10. Dorsal-fin rays 20-24 in male, 15-19 in female; anal-fin rays 21-25 in male, 20-24 in female; caudal-fin rays 23-25, caudal fin subtruncate in male, rounded in female. Long filamentous rays on tip of dorsal and anal-fin in male, tips reaching beyond posterior border of caudal fin. Anal fin reddish orange anteriorly, yellow posteriorly; body bars inconspicuous in life, poorly visible in preserved specimens .: short and / or deep; Cross section: compressed.
🌀 Behaviour
Behavioural data for Peixe-anual is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; pelagic. Tropical South America: São Francisco River basin, Brazil.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🌍CES | vějířovka igaritská |
| 🇵🇹Portuguese | Peixe-anual |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Simpsonichthys igneus | Costa | 2000 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
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