Harbour porpoise
Phocoena phocoena
IUCN Status:Least Concern
What do they look like?
The harbour porpoise is one of the smallest marine mammals found in the UK and they are often spotted close to shore. They're dark grey, with an almost black upper body but have a pale underside.
Where can they be found?
Much of west Wales, but all around the UK too - look off headlands and island clifftops especially.
Did you know... They're nicknamed "puffing pigs" because of the "chuffing" or puffing sound they make when they come up to breathe.
Key facts
Since they're skittish of being around humans and share a similar colour and shape, they're often mistaken as a dolphin. However, harbour porpoises have a blunt head shape and dorsal fin, and, unlike dolphins, have no beak (nose).
Despite being protected in our seas, their numbers are thought to be declining, largely due to bycatch.
| IUCN status | Least Concern |
|---|---|
| Threats | At risk of bycatch. |
| Length | 1.4-1.9m |
| Weight | 55-75 kg |
| Speed and distance | They swim at a steady 12-15 mph, although they can swim faster in short bursts. |
| Habitat | Open ocean |
| Age lifespan | Harbour porpoises have an average lifespan of around 12 years, but can live up to 20. |
| Diet | They enjoy a mixed diet of squid, crustaceans and fish such as sandeels and cod. |
