Populations of harbor porpoise (Phocoena phocoena) are abundant and stable in the Helgeland area, but substantial amounts of bycatch are causing some concern (Bjorge etai, 2013). Harbor seals are classified as least concern (LC, Kalas etai, 2010) and are regulated through the harvesting quota. The population of otters (Enhydra lutris) along the coast of mid and north Norway has been decreasing overthe last 25 years. They are now classified as vulnerable (VU) on the Norwegian red list (Norwegian Biodiversity Information Centre at http://www.biodiversity.no/).