Threadfin blenny

📖 Overview

Threadfin blenny (Nemaclinus atelestos) is a ray-finned fish. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 2.9 cm. With a trophic level of 3.2, 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 soft rays (total): 7 - 37; Anal spines: 2. Common amongst Labrisomids: small, often elongate fishes; largest species about 20 cm standard length, most under 10 cm standard length. Head usually with cirri or fleshy flaps on anterior nostrils, eyes, and laterally on nape; gill membranes continuous with each other across posteroventral surface of head. Each jaw with an outer row of relatively large, canine-like or incisor-like teeth, often with patches of smaller teeth behind; teeth usually also present on vomer and often on palatines (roof of mouth). Dorsal and anal fins long, frequently highest anteriorly; dorsal-fin spines often flexible, outnumbering segmented dorsal-fin soft rays; 2 usually flexible spines in anal fin; pelvic fins inserted anterior to pectoral-fin bases, with 1 spine not visible externally; all fin rays, including those of caudal, unbranched (simple). Cycloid (smooth to touch) scales present at least posteriorly on body. Body coloration: varying from drab to brilliant hues; usually with irregular vertical bands, spots, or marbled pattern. Species distinguished by: dorsal fin consisting of spines and 7 to 37 segmented rays; pectoral-fin rays 12; central pectoral-fin rays elongated, filamentous; pelvic-fin soft rays 2; first anal-fin spine of males shorter than second spine; known only from depths greater than 25 m; no cirrus on anterior nostril; only 1 or no cirrus on each side of nape; scales in lateral-line series usually 35 to 41; lateral-line tubes or canals present at least anteriorly on body.: elongated.

🌀 Behaviour

Behavioural data for Threadfin blenny is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 25 - ? m . Subtropical

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

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