Conger Eel

Photo: Kevin Bryant · CC BY-NC-SA

Conger eels at King of the Sea have grown to genuinely large dimensions — individuals exceeding 1.5 metres are common in the wreck's engine room and forward hold where they occupy permanent refuges in the structural ironwork and emerge at dusk to hunt across the surrounding sand flat. As the apex nocturnal predator of the wreck ecosystem, congers regulate the populations of smaller fish, crustaceans, and cephalopods that shelter within the hull, and their role in cycling organic material through consumption and excretion accelerates the nutrient supply to the sponge and coral communities colonising the superstructure. Congers are semelparous — reproducing only once before dying — with the single spawning event occurring in deep water far from coastal reefs, meaning the individuals at this wreck are exclusively immature or non-reproductive adults on a multi-decade residency.