Ynghylch

The eel is a very long, narrow fish that can grow to over a metre in length. It looks smooth and lacks the obvious scales and gills of other fish. It can be found in rivers and ditches, but leaves its freshwater home to breed in an area of the west Atlantic Ocean called the Sargasso Sea. Young eels (known as 'Elvers') return to freshwater rivers to develop. Eels are predators and scavengers, feeding on dead animals, fish eggs, invertebrates and other fish.