Many marine animals from different taxonomic groups havethe ability to sense and respond to EMFs. They can detectelectrical or magnetic fields with electro- or magneto-receptors.Examples of these are sharks, lobsters, prawns, whales,dolphins and marine turtles [3]. A different magnetic fieldaround the cable may attract animals to or divert them fromthe cable. It is important to understand if EMFs are detectedby sensitive species and if they are of any biological relevance.