Oligosarcus Jacuiensis
📖 Overview
Oligosarcus Jacuiensis (Oligosarcus jacuiensis) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 18.8 cm. With a trophic level of 4.1, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 11. Can be diagnosed from all its known congeners, except Oligosarcus jenynsii, Oligosarcus perdido, Oligosarcus acutirostris, Oligosarcus solitarius and Oligosarcus hepsetus, by the number of perforated lateral line scales (55-65). Shares with the first two species the absence of a premaxillary foramen, present in the last three species and differs from Oligosarcus jenynsii by having a smaller orbital diameter and the tip of the pectoral fin failing to reach the pelvic-fin origin, and from Oligosarcus perdido by the presence of more horizontal scale rows around the caudal peduncle. : fusiform / normal.
🌀 Behaviour
Behavioural data for Oligosarcus Jacuiensis is currently being reviewed.
🦐 Diet
Diet information for Oligosarcus Jacuiensis is currently being compiled.
🥚 Reproduction
Reproduction data for Oligosarcus Jacuiensis is currently being compiled.
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical South America: Jacuí and Uruguay River basins in Rio Grande do Sul, Brazil.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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