Conger Eel

What you're looking at

The conger eel (Conger conger) is the UK's heavyweight eel — a snake-bodied predator of wrecks and broken ground that grows to enormous proportions. Drab in colour but unmistakable once hooked: pure muscle from head to tail, with a fearsome set of teeth.

Key features

• Body: Cylindrical at the head, laterally compressed toward the tail. Continuous dorsal-tail-anal fin running around the rear half of the fish.
• Skin: Scaleless, smooth, heavily slime-coated. Always wet your hands before handling.
• Mouth: Large, jaws full of small backward-pointing teeth designed to grip and not let go. Use long-handled forceps — keep fingers well away from a fresh conger's head.
• Dorsal fin: Begins well forward, level with or just behind the pectoral fin tips. This is the key separator from the European eel.
• Colour: Slate grey to dark brown on the back, fading to a creamy or pinkish-white belly.
• Size: Shore congers 2–8 kg are routine; boat congers from deep wrecks reach 25 kg+; UK shore record over 30 kg, boat record over 60 kg.

Confusion species

• European eel: Much smaller, freshwater/estuarine, lower jaw projects beyond the upper (opposite of conger). Dorsal fin begins much further back. Yellow-brown body. Critically endangered — handle with care and return.
• Lamprey: No paired fins, a sucker-disc mouth (no jaws), and a row of round gill openings instead of a single slit. Different family entirely.

Where to find them

Wrecks, deep harbours, broken ground, and rock marks. Shore congers feed best after dark from rock-fringed beaches and harbour walls in summer. Boat congers come from wrecks year-round but are easiest in summer when the weather lets you anchor properly. Use heavy gear: 50–80 lb mainline, strong wire trace, big single hook, oily bait (mackerel head, whole squid). Always have heavy gloves, long forceps, and a wet unhooking mat ready before lifting one over the gunwale.