"Measures that were initiated in the sixties and seventies have now finally led to otters being classified as viable," says Henrik Thurfjell from the SLU Species Database in a press release.
But there are still doubts about otter reproduction. High levels of environmental toxins have been measured in otters and it is not yet known what this means for the development of the species.
Other species are doing worse. Eels, for example, are still critically endangered. Herring, salmon and trout are newcomers to the list and are all considered to be near threatened.
Relatively common butterfly species are red-listed based on their rate of decline.
Sweden's Red List is a compilation of individual species' risk of extinction and is produced by the SLU Species Data Bank together with around a hundred experts.
