Scientists now say that the harmful alga will survive the winter and that it will probably turn green in the Oslo fjord next year as well.
Hundreds of guillemots go astray in the Oslo fjord every autumn. Many are now starving in the food-poor fjord.
Large menger glass jellyfish in the Oslo fjord cause problems for both beachgoers and shrimp fishermen. The whole trawl was full before it reached the bottom where the shrimp are.
Seals have suffered serious infections of the heart and lungs. Veterinarians do not yet know the cause.