Colder than normal sea temperatures have meant some species of fish have delayed returning to Jersey's inshore waters.

BBC: Jersey coastal industry 'damaged' by cold seas

Salmon farms have traditionally involved large numbers of fish contained in nets in inshore waters raising a number of environmental issues.

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Mr Burnett said the results raised questions about stocks of tope - an inshore shark commonly found in British coastal waters - in the area.

BBC: Tope shark