SAMBAH harbour porpoise distribution in the Baltic Sea

The raster files show modelled probability of detection of harbour porpoises in the Baltic Sea,
and are relevant as a proxy for harbour porpoise distribution in this area. Areas of depths greater
than 80 m were excluded from this work.

Seasonal probabilities (May - October and November - April) are averages derived from modelled
monthly probability maps.

A shape file showing a suggested management border for the Baltic Proper harbour porpoise 
population is also included. This is valid for the months May - Oct, when the Baltic and the 
Belt Sea populations of porpoises are clearly separated. During Nov - Apr, populations overlap.