European Eel Anguilla anguilla

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 is famous for both its slippery nature and its mammoth migration from its freshwater home to the Sargasso Sea where it breeds. Image: Mattia (iNaturalist).

Find out more: Suffolk Wildlife Trust, iNaturalist, Marine Life Information Network