Akarnax Slopefish
📖 Overview
Akarnax Slopefish (Symphysanodon mona), first described by Anderson & Springer, 2005 is a small fish in the family Symphysanodontidae (order Acropomatiformes). Adults typically reach 8.60 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 7; Vertebrae: 25. The species differs from all other species of the genus in having fewer gillrakers on first arch (4 or 5 + 19-21 = 24 or 25 total vs. 8-14 + 20-29 = 28-42 total). In addition, it differs from other Atlantic species in having a ventral branch of obliquus dorsalis 3 muscle (vs. its absence in the other two species) and in having a posteriorly projecting extension of the cartilaginous lateral end of ceratobranchial 4 (vs. its absence in the other two species; S. berryi has a small accessory cartilage associated with the lateral end of ceratobranchial 4; the specimen of S. octoactinus examined may have had a very small accessory cartilage that was lost during dissection).: elongated.
🌀 Behaviour
Behavioural data for Akarnax Slopefish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; pelagic-oceanic; depth range ? - 384 m . Tropical Central Atlantic: known only from the type locality: Mona Passage off the west coast of Puerto Rico.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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