Ålands marina strategi - Ålands landskapsregering
Ålands marina strategi - Ålands landskapsregering
Ålands marina strategi - Ålands landskapsregering
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Innehåll<br />
BAKGRUND OCH SAMMANFATTNING ................................................................................................ 1<br />
INLEDNING ........................................................................................................................................... 6<br />
DEL 1. BEDÖMNING ENLIGT ARTIKEL 8 ................................................................................................... 9<br />
GRUNDLÄGGANDE FÖRHÅLLANDEN ................................................................................................... 9<br />
Beskrivning av Åland och belastningen ......................................................................................... 10<br />
Olika utsläppskällor på Åland ........................................................................................................ 14<br />
Fysikaliska och kemiska förhållanden ............................................................................................... 20<br />
Isutbredning .................................................................................................................................. 20<br />
Temperaturförhållanden ............................................................................................................... 23<br />
Vågexponering ............................................................................................................................... 24<br />
Salthaltsvariationer ....................................................................................................................... 25<br />
Syreförhållanden ........................................................................................................................... 27<br />
Vattenståndet ................................................................................................................................ 29<br />
Oorganiska kväve- och fosforhalter .............................................................................................. 31<br />
Kväve- och fosforhalter runt Åland ............................................................................................... 34<br />
pH .................................................................................................................................................. 35<br />
Livsmiljöer ......................................................................................................................................... 35<br />
Den åländska skärgården .............................................................................................................. 37<br />
Speciella livsmiljöer ....................................................................................................................... 37<br />
Naturreservat och inventeringar ................................................................................................... 37<br />
Skyddsvärda vikar .......................................................................................................................... 37<br />
Biologiska förhållanden ..................................................................................................................... 38<br />
Växtplankton och klorofyll-a ......................................................................................................... 39<br />
Klorofyllhalter på Åland ................................................................................................................. 40<br />
Bottenfauna ................................................................................................................................... 41<br />
Makroalger .................................................................................................................................... 43<br />
Fiskbestånden ................................................................................................................................ 45<br />
Marina däggdjursarter................................................................................................................... 48<br />
Fåglar ............................................................................................................................................. 51<br />
Främmande arter .......................................................................................................................... 52<br />
Andra förhållanden ........................................................................................................................... 54<br />
Miljögifter i Östersjön .................................................................................................................... 54<br />
Biologisk störning genom jakt och fiske ........................................................................................ 55<br />
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