Yelloweye filefish
📖 Overview
Yelloweye filefish (Pervagor alternans) is a ray-finned fish of the family Monacanthidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 16 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 31 - 34; Anal spines: 0; Anal soft rays: 27 - 31; Vertebrae: 19. A strong first dorsal spine armed with 2 rows of prominent, laterally-directed barbs. Posterior margin of ventral flap not attached to large and barbed pelvic rudiment. Distinguished by a bright yellow ring around the eye . Head and body blackish brown to pale, pinkish brown; blackish band usually encircling the snout; eyes and surrounding area bright yellow. Caudal fin generally orange; soft dorsal and anal fins spotted, clear or yellowish orange basally; pectoral fins clear, base blackish brown. Scales on posterior half of body with spinules, number increasing with age; adult male with scale rugosities: short and / or deep; Cross section: compressed.
🌀 Behaviour
Behavioural data for Yelloweye filefish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; reef-associated; depth range 15 - ? m . Tropical; 15°N - 40°S east coast of Australia, Lord Howe Island, New Caledonia, and the Marshall Islands.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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