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Giant African threadfin

Polydactylus quadrifilis

ActinopterygiiGame FishListed as Least Concern…

Overview

It is relatively elongate somewhat compressed fish with an inferior mouth overhanging blunt snout. The maxilla reaches past the eye, it's posterior edge greatly expanded. There are 4-5 detached threadlike lower rays on the pectoral fins, which are only slightly longer than the upper pectoral rays. Coloration of the giant African threadfin is dull silvery gray or brownish on the back shading to whitish ventrally; a dark smudge sometimes is present on the gill cover.

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Perciformes
Family
Polynemidae
Genus
Polydactylus
Species
quadrifilis

Habitat

This species occurs in the shallow and often muddy waters of estuaries and lagoons or along beaches in the Eastern Atlantic from Senegal to Congo.

Diet

Small Fish, Crabs, Prawns, Squid, Octopus.

Behavior

Giant African threadfin are schooling fish that form large groups in shallow waters, making them social and often migratory to follow food sources. They are primarily active at dawn and dusk, feeding near the bottom, and exhibit territorial behavior when protecting spawning areas. This species is known for using their long pectoral filaments to detect prey in murky environments.

Fishing

Anglers targeting the Giant African threadfin, a powerful sport fish found in the shallow, muddy waters of estuaries, lagoons, and beaches along the Eastern Atlantic from Senegal to Congo, should focus on bottom fishing or trolling techniques to mimic its natural prey, using strong, heavy-action rods with 20-50 lb test lines, large reels, and sturdy hooks to handle its impressive size and strength; effective baits and lures include live prawns, crabs, small fish, or squid imitations to entice strikes from these bottom-feeding predators. The best seasons for fishing are during the warmer months of spring and summer when they are more active and spawning, with dawn and dusk being prime times for bites as they school and feed near the bottom in these coastal habitats. Record sizes include an IGFA all-tackle world record of 122 pounds 2 ounces, showcasing the thrill of this species for recreational anglers. Conservation-wise, the Giant African threadfin is listed as Least Concern by the IUCN, benefiting from angler-funded programs like license fees that support habitat restoration in these waterways, while effective management tools such as catch-and-release practices in certain areas help maintain healthy populations and promote sustainable fishing traditions.

Conservation Status

Listed as Least Concern by IUCN.