Vestlige Kattegat og tilstødende fjorde 2002 ... - Mariager Fjord

Vestlige Kattegat og tilstødende fjorde 2001 Indhold
Indholdsfortegnelse
1. Indledning 5
2. Sammenfatning 7
3. Klimatiske forhold 15
4. Mariager Fjord 19
4.1 Geografiske, geologiske og hydrografiske forhold ..........................................................................19
4.2 Prøvetagningsprogram...................................................................................................................19
4.3 Miljøtilstand og udvikling ...............................................................................................................21
4.3.1 Fysiske forhold ...............................................................................................................................21
4.3.2 Stoftilførsler og vand- og stoftransport ..............................................................................................23
4.3.3 Næringsstoffer i vandet ...................................................................................................................26
4.3.4 Iltforhold og svovlbrinte bufferkapacitet ............................................................................................29
4.3.5 Plankton ........................................................................................................................................31
4.3.6 Bundvegetation ..............................................................................................................................35
4.3.7 Bundfauna.....................................................................................................................................38
4.4 Diskussion.....................................................................................................................................42
4.4.1 Miljøtilstand og udvikling ................................................................................................................42
4.4.2 Målsætninger.................................................................................................................................45
5. Randers Fjord 47
5.1 Geografiske, geologiske og hydrografiske forhold ..........................................................................47
5.2 Prøvetagningsprogram...................................................................................................................47
5.3 Miljøtilstand og udvikling ...............................................................................................................49
5.3.1 Fysiske forhold ...............................................................................................................................49
5.3.2 Stoftilførsel.....................................................................................................................................50
5.3.3 Næringsstoffer i vandet ...................................................................................................................53
5.3.4 Ilt..................................................................................................................................................57
5.3.5 Plankton ........................................................................................................................................59
5.3.6 Bundvegetation ..............................................................................................................................60
5.3.7 Miljøfarlige stoffer ..........................................................................................................................62
5.4 Diskussion.....................................................................................................................................68
5.4.1 Miljøtilstand og udvikling ................................................................................................................68
5.4.2 Målsætninger.................................................................................................................................71
6. Vestlige Kattegat 75
6.1 Geografiske, geologiske og hydrografiske forhold ..........................................................................75
6.2 Oversigt over gennemførelse af NOVA-programmet for året 2002..................................................76
6.3 Miljøtilstand og udvikling ...............................................................................................................78
6.3.1 Fysiske forhold ...............................................................................................................................78
6.3.2 Stoftilførsler....................................................................................................................................81
6.3.3 Næringsstoffer i vandet ...................................................................................................................83
6.3.4 Ilt..................................................................................................................................................85
6.3.5 Plankton ........................................................................................................................................85
6.3.6 Bundfauna.....................................................................................................................................90
6.4.1 Miljøtilstand og udvikling ...............................................................................................................95
6.4.2 Målsætninger.................................................................................................................................97
7. Konklusion 99
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