Harbour Porpoises (Phocoena phocoena) in Busy Waters: How Recreational Boats Affect Numbers, Swimming Speed, and Surfacing Interval
The harbour porpoise (Phocoena phocoena) is affected by anthropogenic activities in Swedish waters, and the individuals found in the Öresund belong to the Belt Sea population, which is classified as ´vulnerable´. Boat traffic is known to have a negative impact on porpoises. Behavioural responses to such disturbances are context-dependent, and locally specific knowledge is needed for effective mana