Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Influence of atmospheric modes of variability on the limnological characteristics of large lakes south of the Alps: a new emerging paradigm |
| Abstract | Winter air and spring surface water temperatures, spring epilimnetic phosphorus, and hypolimnetic oxygen in the deep lakes south of the Alps (Garda, Iseo, Como, Lugano, and Maggiore) showed a high degree of temporal coherence. The common temporal patterns were originating from the effects caused by winter climate, and from corresponding synchronisms in the interannual variations in the extent of the spring water renewal and replenishment of nutrients. In turn, the sequence of linked causal events was triggered by two atmospheric modes of variability relevant for the Mediterranean region, i.e. the East Atlantic pattern (EA) and the Eastern Mediterranean Pattern (EMP). In contrast, there were no significant relationships of air and water temperatures with the North Atlantic Oscillation. In oligotrophic lakes, which were characterised by weak vertical nutrient gradients, the spring replenishment of P was negligible and difficult to detect (Maggiore), or detectable but of minor importance (Garda and Como) compared to that measured in more enriched lakes (Iseo and Lugano). The applicability of EA and EMP in the study of the impact of climate on aquatic ecosystems will require to be tested by expanding the number, typology, and geographical location of water bodies in the Alpine and Mediterranean regions. |
| Source | Hydrobiologia (The Hague. Print) 731 (1), pp. 31–48 |
| Keywords | Deep lakesWinter climatic fluctuationsEutrophicationEast Atlantic patternEastern Mediterranean PatternNorth Atlantic Oscillation |
| Journal | Hydrobiologia (The Hague. Print) |
| Editor | Kluwer Academic Publishers, Boston, Paesi Bassi |
| Year | 2014 |
| Type | Articolo in rivista |
| DOI | 10.1007/s10750-013-1659-6 |
| Authors | Nico Salmaso; Fabio Buzzi; Leonardo Cerasino; Letizia Garibaldi; Barbara Leoni; Giuseppe Morabito; Michela Rogora; Marco Simona |
| Text | 314998 2014 10.1007/s10750 013 1659 6 ISI Web of Science WOS 000334493700004 Deep lakes Winter climatic fluctuations Eutrophication East Atlantic pattern Eastern Mediterranean Pattern North Atlantic Oscillation Influence of atmospheric modes of variability on the limnological characteristics of large lakes south of the Alps a new emerging paradigm Nico Salmaso; Fabio Buzzi; Leonardo Cerasino; Letizia Garibaldi; Barbara Leoni; Giuseppe Morabito; Michela Rogora; Marco Simona Fdn E Mach; ARPA Lombardia; University of Milano Bicocca; Consiglio Nazionale delle Ricerche CNR ; SUPSI Winter air and spring surface water temperatures, spring epilimnetic phosphorus, and hypolimnetic oxygen in the deep lakes south of the Alps Garda, Iseo, Como, Lugano, and Maggiore showed a high degree of temporal coherence. The common temporal patterns were originating from the effects caused by winter climate, and from corresponding synchronisms in the interannual variations in the extent of the spring water renewal and replenishment of nutrients. In turn, the sequence of linked causal events was triggered by two atmospheric modes of variability relevant for the Mediterranean region, i.e. the East Atlantic pattern EA and the Eastern Mediterranean Pattern EMP . In contrast, there were no significant relationships of air and water temperatures with the North Atlantic Oscillation. In oligotrophic lakes, which were characterised by weak vertical nutrient gradients, the spring replenishment of P was negligible and difficult to detect Maggiore , or detectable but of minor importance Garda and Como compared to that measured in more enriched lakes Iseo and Lugano . The applicability of EA and EMP in the study of the impact of climate on aquatic ecosystems will require to be tested by expanding the number, typology, and geographical location of water bodies in the Alpine and Mediterranean regions. 731 Published version Articolo 2014_Hydrobiologia_731_31_48.pdf Articolo in rivista Kluwer Academic Publishers 0018 8158 Hydrobiologia The Hague. Print Hydrobiologia The Hague. Print Hydrobiologia The Hague. Print Hydrobiologia. The Hague. Print Hydrobiologia Dordrecht The Hague. Print Hydrobiologia Boston The Hague. Print Hydrobiologia London The Hague. Print giuseppe.morabito MORABITO GIUSEPPE michela.rogora ROGORA MICHELA TA.P02.014.002 Impatto dei cambiamenti globali sugli ecosistemi acquatici |