The harbour porpoise is one of the smallest ocean mammals and has mostly a dark grey colouring, with a paler underneath. This cetacean is fond of quite shallow coastal waters, and can be spotted along Norfolk coast.
The local status is not well known. However, there have been increased sightings over the last decade, and the results of recent surveys suggest that the waters off the Norfolk coast are particularly important for this species. The main threats to porpoises are believed to be by-catch (accidental capture whilst fishing), over fishing, pollution, and environmental disturbance (e.g. noise from boats) and possibly climate change.
Take part in the Porpoise, Dolphin and Whale Survey that is being organised by the Norfolk Biodiversity Partnership, in collaboration with the Sea Watch Foundation and other organisations in the region.
Report any dead porpoises to the Coastguard (01493 851338). Corpses may be sent to the Natural History Museum for post-mortem to determine cause of death and the condition of the animal before it died.
The RSPCA (08705 555999) or the British Divers Marine Life Rescue (01825 765546) should be contacted immediately for any live strandings