Conger eel

Photo: Kevin Bryant · CC BY-NC-SA

European conger are among the largest bony fish in the Mediterranean, reaching up to 3 m and 110 kg. They are powerful predators of fish and cephalopods, hunting at night from rocky lairs and crater-wall crevices. Conger undertake a single spawning migration to deep water of 3,000 to 4,000 m in the Atlantic before dying, meaning adults caught or seen at dive sites have never reproduced.