African blackspot threadfin
📖 Overview
African blackspot threadfin (Polydactylus malagasyensis) is a ray-finned fish of the family Polynemidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 14.9 cm. It occurs at depths between 5 and 62 metres. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 12 - 13; Anal spines: 3; Anal soft rays: 12; Vertebrae: 24. With 6 pectoral filaments; uppermost not reaching to (or extending slightly beyond) posterior tip of pectoral fin. Pectoral fin, rays long, 21-26% of SL; fin base long, 10-12% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine long, 7-9% of SL. Well-developed swim bladder. A large black spot anteriorly on lateral line .: short and / or deep; Cross section: compressed.
🌀 Behaviour
Behavioural data for African blackspot threadfin is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; brackish; demersal; depth range 5 - 62 m . Tropical; 1°N - 35°S, 25°E - 51°E South Africa, and Madagascar.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | African blackspot threadfin · sixfinger threadfin |
| 🌍AFR | sesvinger-draadvin |
| 🌍CES | smuhovec africký |
| 🇫🇷French | barbure tâche noire d'Afrique |
| 🇵🇹Portuguese | barbudo de mancha |
| 🇪🇸Spanish | barbudo mancha negra Africano |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
👥 Community & Contribute
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