There is increasing bush encroachment on many islands in the archipelagos of Aland, Stockholm and Ostergotland, and the number of pine seedlings (Pinus silvestris) has increased during the last few years. Nitrophilic species like stinging nettles (Urtica dioica) and cow parsley (Anthriscus sylvestris) have also increased. Sport fishing, fishing tourism and kayaking have increased, with both positive and negative impacts.