| Autor: |
Moksnes, Per-Olav, Eriander, Louise, Hansen, Joakim, Albertsson, Jan, Andersson, Mattias, Bergström, Ulf, Carlström, Julia, Egardt, Jenny, Fredriksson, Ronny, Granhag, Lena, Lindgren, Fredrik, Nordberg, Kjell, Wendt, Ida, Wikström, Sofia, Ytreberg, Erik |
| Jazyk: |
švédština |
| Rok vydání: |
2019 |
| Předmět: |
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| Popis: |
Sweden has a long and beautiful coastline with extensive archipelagos that offer exceptional conditions for recreational boating. There are more than 700 000 recreational boats in Sweden, which is one of the highest numbers in the world in relation to the population size. Small tidal differences and many sheltered bays also provide good conditions for storing boats at docks and piers and jetties. As a result, large areas of the Swedish coast are today covered with docks and marinas for recreational boats. The large number of boats and docks could have substantial negative effects on the environment. However, the understanding of the cumulative impact of recreational boating on Swedish coastal ecosystem has so far been incomplete. The goal with this report from the Swedish Institute for the Marine Environment has been to compile and summarize the present state of knowledge regarding how recreational boating affect shallow coastal ecosystems in Sweden, to determine the extent of the impact and if the development is sustainable. The aim has been to present scientific knowledge on these topics in an accessible way in order to facilitate the development of a more sustainable management of recreational boating in Sweden. The scientific literature strongly support that recreational boating generates many negative effects on the marine environment. Recreational boating requires a number of physical structures and generate a number activities that each results in several different pressures on the environment. An increased number of marinas, docks and dredged canals results in losses of important habitats, as well as long-term deterioration of the environmental conditions locally. Dredging and dumping of dredge material results in increased turbidity and dispersal of sediment, nutrients and pollutants over large areas with negative effects on many aquatic organisms, e.g. vegetation, fishes and mussels. Traffic from recreational boats and anchoring result in increased turbidity and sediment erosion as well as damage to habitats. Motor boats also create underwater noise that can disturb e.g. fishes, seals and porpoises. In addition, recreational boating result in substantial emissions of toxic substances and pollution from e.g. antifouling paint and combustion engines. More than 60% of all docks and marinas are found in wave sheltered, shallow ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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