Quantifying Background Nutrient Concentrations in Coastal Waters
A Case Study from an Urban Embayment of the Baltic Sea
Bibliographic Data
| ID | 10886918 |
|---|---|
| Authors | Kaarina Weckström (0000-0002-3889-0788), Steve Juggins (0000-0003-4466-424X), Atte Korhola (0000-0003-2577-6502) |
| Year | 2004 |
| Volume | 33 |
| Issue | 6 |
| Pages | 324 |
| Publication date | 2004-01-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | AMBIO (JOURNAL) |
| Journal identifiers | ISSN: 0044-7447 • E-ISSN: 1654-7209 |
| Publisher | American Bryological and Lichenological Society (PUBLISHER • US) |
| DOI | 10.1639/0044-7447(2004)033[0324:qbncic]2.0.co;2 |
| OpenAlex | W4241762411 |
| Language | EN |
| References cited | 23 |
Successful management of damaged coastal ecosystems requires reliable scientific evidence of their past state. Here we demonstrate that the sediment record of biotic indicators can be used to quantitatively reconstruct nutrient concentrations preceding the short time span covered by monitoring records. We generated a diatom-based weighted-averaging partial least squares transfer function model for total dissolved nitrogen with a prediction accuracy of 0.09 μg L−1 (log10 units). The model was applied to sediment core data from Laajalahti Bay, an urban embayment in Helsinki, Finland, where its performance was validated against a ∼ 30 yr record of water-quality data and known land-use changes in the watershed. The model tracked well the trends in the nutrient record, although it underestimated very high nutrient concentrations in this highly impacted embayment. The generally good agreement between the actual and predicted values implies that the approach has considerable potential in assessing background nutrient concentrations in coastal waters.
Bay · Biology · Diatom · Ecosystem · Eutrophication · Hydrology (agriculture) · Nutrient · Sediment · Water quality · Watershed · Ecology · Environmental Science · Geology · Groundwater and Isotope Geochemistry · Marine and coastal ecosystems · Oceanography · Soil and Water Nutrient Dynamics
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Palaeolimnological approaches to climate change, with special regard to the biological record
Canonical Correspondence Analysis
Weighted averaging partial least squares regression (WA-PLS)
Diatoms and pH reconstruction
Environmental changes of the last three centuries indicated by siliceous microfossil records from the southwestern Baltic Sea
The History of Eutrophication in the Sea Area of Helsinki in the 20 th Century
| Highly cited | No |
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