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Relationships between colored dissolved organic matter and dissolved organic carbon in different coastal gradients of the Baltic Sea
Relationships between colored dissolved organic matter and dissolved organic carbon in different coastal gradients of the Baltic Sea
- Source :
- Ambio
- Publication Year :
- 2015
- Publisher :
- Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015.
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Abstract
- Due to high terrestrial runoff, the Baltic Sea is rich in dissolved organic carbon (DOC), the light-absorbing fraction of which is referred to as colored dissolved organic matter (CDOM). Inputs of DOC and CDOM are predicted to increase with climate change, affecting coastal ecosystems. We found that the relationships between DOC, CDOM, salinity, and Secchi depth all differed between the two coastal areas studied; the W Gulf of Bothnia with high terrestrial input and the NW Baltic Proper with relatively little terrestrial input. The CDOM:DOC ratio was higher in the Gulf of Bothnia, where CDOM had a greater influence on the Secchi depth, which is used as an indicator of eutrophication and hence important for Baltic Sea management. Based on the results of this study, we recommend regular CDOM measurements in monitoring programmes, to increase the value of concurrent Secchi depth measurements. Electronic supplementary material The online version of this article (doi:10.1007/s13280-015-0658-4) contains supplementary material, which is available to authorized users.
- Subjects :
- Baltic Sea
Climate Change
Geography, Planning and Development
Climate change
Secchi depth
DOC
Article
Dissolved organic carbon
Environmental monitoring
Environmental Chemistry
Ecosystem
Ecology
General Medicine
Eutrophication
Miljövetenskap
Carbon
Salinity
Colored dissolved organic matter
Oceanography
Environmental science
CDOM
Surface runoff
Water Pollutants, Chemical
Environmental Sciences
Environmental Monitoring
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Ambio
- Accession number :
- edsair.doi.dedup.....4fca230feb3f17050ac9f11622c3d0a6