I lived on Kodiak Island for 10 years and have friends there today, no raccoons there unless someone would release one as a former "pet" the fishing boats that travel from Seattle to Kodiak all the time, who knows?   Now the interesting discussion is where did the crayfish come from they have been finding in the Buskin River? When I lived on Kodiak in the early 1980's there was a local bar that imported crayfish for an annual cookout and one bar also held an annual frog jumping contest in honor of Mark Twain and imported huge jumping frogs that ended up as fried frog legs, so.... anything that went on Kodiak Island in the 1970's and early 1980's when I lived there involved alcohol and a great place to waste your youth.