Atlantic lobefin dogfish
📖 Overview
Atlantic lobefin dogfish (Squalus lobularis) is a ray-finned fish of the family Squalidae. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 64 cm. With a trophic level of 4.1, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
This species is distinguished from its congeners by the following characters: dorsal fins markedly broad and lobe-like and with a short clasper groove, not reaching the rhipidion; differs from S. mitsukurii by having a slender body (vs. highly robust), pectoral-fin posterior margin is concave (vs. straight); interorbital space narrower, 8.8%, 6.8%-8.5% TL (vs. 9.3%, 9.1%-9.8% TL); inner clasper length 1.4 times pelvic-fin inner margin length (vs. 0.7-1.1 times); differs from species of the Squalus megalops group by the having a snout relatively long (vs. short), pectoral fins markedly broad (vs. often very narrow), pectoral free rear tips rounded and lobe-like (vs. often triangular); dermal denticles tricuspidate (vs. lanceolate); further differs from all congeners by having a much larger pectoral-inner margin length (10.5%, 9.2%-11.0% TL), except from S. acanthias .: elongated; Cross section: angular.
🌀 Behaviour
Behavioural data for Atlantic lobefin dogfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; benthopelagic. Subtropical Southwest Atlantic: from southern Brazil to Uruguay, Patagonia in Argentina where it seems to be more common.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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