Spiralis luminous-roughy
📖 Overview
Spiralis luminous-roughy (Aulotrachichthys spiralis) is a ray-finned fish of the family Trachichthyidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 8.9 cm. It occurs at depths between 25 and 220 metres. With a trophic level of 4.2, it is a mid-level predator.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 5; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 8; Vertebrae: 27. This species is distinguished from all its congeners by the following set of characters: D V,13 usually; A III,8 usually; ventral scutes 7-10 (modally 8); specimens >70 mm SL have 57-62 scale rows in longitudinal series, 24-29 pored lateral-line scales, and 7-9 scale rows between last dorsal-fin spine and lateral line; striated area ending before mid-point on caudal peduncle, its length 25.2–39.7% of caudal peduncle length; posterior interorbital ridges mesially curved posteriorly; posttemporal crest with rounded margin, lacking a distinct spine; spines of dorsal, anal and pelvic fins with many longitudinal helical ridges on surface (specimens >75 mm SL) .Cross section: compressed.
🌀 Behaviour
Behavioural data for Spiralis luminous-roughy is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; bathypelagic; depth range 25 - 220 m . Subtropical Northwest Pacific: Japan and northern East China Sea and Osumi Channel.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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