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| Content Provider | Springer Nature Link |
|---|---|
| Author | Bécares, Eloy Gomá, Joan Fernández Aláez, Margarita Fernández Aláez, Cami Romo, Susana Miracle, Maria R. Ståhl Delbanco, Anika Hansson, Lars Anders Gyllström, Mykael Bund, Wouter J. Donk, Ellen Kairesalo, Timo Hietala, Jaana Stephen, Debbie Balayla, David Moss, Brian |
| Copyright Year | 2007 |
| Abstract | Replicated, factorial mesocosm experiments were conducted across Europe to study the effects of nutrient enrichment and fish density on macrophytes and on periphyton chlorophyll a (chl-a) with regard to latitude. Periphyton chl-a densities and plant decline were significantly related to nutrient loading in all countries. Fish effects were significant in a few sites only, mostly because of their contribution to the nutrient pool. A saturation-response type curve in periphyton chl-a with nutrients was found, and northern lakes achieved higher densities than southern lakes. Nutrient concentration and phytoplankton chl-a necessary for a 50% plant reduction followed a latitudinal gradient. Total phosphorus values for 50% plant disappearance were similar from Sweden (0.27 mg L−1) to northern Spain (0.35 mg L−1), but with a sharp increase in southern Spain (0.9 mg L−1). Planktonic chl-a values for 50% plant reduction increased monotonically from Sweden (30 μg L−1) to València (150 μg L−1). Longer plant growing-season, higher light intensities and temperature, and strong water-level fluctuations characteristic of southern latitudes can lead to greater persistence of macrophyte biomass at higher turbidities and nutrient concentration than in northern lakes. Results support the evidence that latitudinal differences in the functioning of shallow lakes should be considered in lake management and conservation policies. |
| Starting Page | 561 |
| Ending Page | 574 |
| Page Count | 14 |
| File Format | |
| ISSN | 13862588 |
| Journal | Aquatic Ecology |
| Volume Number | 42 |
| Issue Number | 4 |
| e-ISSN | 15735125 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2007-09-26 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Nutrients Fishes Periphyton Macrophytes Shallow lakes Latitude Mesocosms Ecosystems Freshwater & Marine Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Aquatic Science Ecology, Evolution, Behavior and Systematics |
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