| Titre : | Influence of nutrients, submerged macrophytes and zooplankton grazing on phytoplankton biomass and diversity along a latitudinal gradient in Europe |
| Auteurs : | Koenraad Muylaert, Auteur ; Carmen Pérez-Martínez, Auteur ; Pedro Sanchez-Castillo, Auteur ; Torben L. Lauridsen, Auteur ; Maarten Vanderstukken, Auteur ; Steven A. J. Declerck, Auteur ; Katleen Van der Gucht, Auteur ; Jose-Maria Conde-Porcuna, Auteur ; Erik Jeppesen, Auteur ; Luc De Meester, Auteur ; Wim Vyverman, Auteur |
| Type de document : | Article |
| Dans : | Hydrobiologia (653(1) OCT 2010) |
| Article en page(s) : | 79-90 |
| Résumé : | In order to evaluate latitudinal differences in the relationship of phytoplankton biomass and diversity with environmental conditions in shallow lakes, we sampled 98 shallow lakes from three European regions: Denmark (DK), Belgium/The Netherlands (BNL) and southern Spain (SP). Phytoplankton biomass increased with total phosphorus (TP) concentrations and decreased with submerged macrophyte cover across the three regions. Generic richness was significantly negatively related to submerged macrophyte cover and related environmental variables. Zooplankton:phytoplankton biomass ratios were positively related to submerged macrophyte cover and negatively to phytoplankton generic richness in DK and BNL, suggesting that the low generic richness in lakes with submerged macrophytes was due to a higher zooplankton grazing pressure in these regions. In SP, phytoplankton generic richness was not influenced by zooplankton grazing pressure but related to conductivity. We observed no relationship between phytoplankton generic richness and |



