East Asian fourfinger threadfin
📖 Overview
East Asian fourfinger threadfin (Eleutheronema rhadinum) is a ray-finned fish of the family Polynemidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 73.9 cm. It occurs at depths between 5 and 8 metres. With a trophic level of 3.8, it is a mid-level predator.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 13 - 15; Anal spines: 3; Anal soft rays: 14 - 16. Pectoral filaments 4; fin membranes black. Vomer with deciduous tooth plates on both sides. Posterior part of maxilla deep, 3% of SL. Short tooth plate extension onto lateral surface of lower jaw, 8-9% SL .: elongated; Cross section: compressed.
🌀 Behaviour
Behavioural data for East Asian fourfinger threadfin is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; brackish; pelagic-neritic; depth range 5 - 8 m . Temperate; 42°N - 15°N, 105°E - 142°E Northwest Pacific: China, Japan and Viet Nam.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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