It wasn't necessary Viking raiders carrying off female slaves, but Vikings settled in places like the Hebrides, the Isle of Man, and the Orkney islands who had children by the local women. Some of the descendants of these unions must have been among the initial colonizers of Ireland.
Clan MacDougal originated with a son of King Hakkon the first. The clan coat of arms shows longships and I read somewhere that the clan could put several thousand men at sea at one time.