TY - JOUR
T1 - A model for high-altitude alpine lake ecosystems and the effect of introduced fish
AU - Magnea, Ulrika
AU - Sciascia, Roberta
AU - Paparella, Francesco
AU - Tiberti, Rocco
AU - Provenzale, Antonello
N1 - Funding Information:
We are grateful to Bruno Bassano, Giuseppe Bogliani, Achaz von Hardenberg, Jost von Hardenberg, Maurice Rossi and Sabino Metta for useful discussions. We thank Marina Austoni, Cristiana Callieri, Aldo Marchetto, Giuseppe Morabito and Gabriele Tartari for useful comments. The measurement campaign was made possible by the support of the Gran Paradiso National Park and the help of the GPNP technical staff and of the park wardens. RT also acknowledges the help of the many students who took part in the measurements. This work was funded by the EU FP7 IP ACQWA .
PY - 2013/2/4
Y1 - 2013/2/4
N2 - We discuss a simplified mathematical model for alpine lake ecosystems, describing the summer (i.e. ice-free period) dynamics of phosphorus, phytoplankton, three zooplankton compartments and fish abundance. Model output is compared with measurements of total phosphorus, chlorophyll-a and zooplankton biomass recorded in twelve high-altitude mountain lakes in the Gran Paradiso National Park (northwestern Italy) during the summer season from 2006 to 2009. Model results are consistent with measured data, indicating the appropriateness of this modeling approach for quantitatively studying mountain lake ecosystems and their response to environmental changes. The comparison between the results obtained for lakes without fish and those where the allochthonous brook trout (Salvelinus fontinalis) was introduced clearly indicates the strong impact of fish stocking in alpine lakes.
AB - We discuss a simplified mathematical model for alpine lake ecosystems, describing the summer (i.e. ice-free period) dynamics of phosphorus, phytoplankton, three zooplankton compartments and fish abundance. Model output is compared with measurements of total phosphorus, chlorophyll-a and zooplankton biomass recorded in twelve high-altitude mountain lakes in the Gran Paradiso National Park (northwestern Italy) during the summer season from 2006 to 2009. Model results are consistent with measured data, indicating the appropriateness of this modeling approach for quantitatively studying mountain lake ecosystems and their response to environmental changes. The comparison between the results obtained for lakes without fish and those where the allochthonous brook trout (Salvelinus fontinalis) was introduced clearly indicates the strong impact of fish stocking in alpine lakes.
KW - Allochthonous species
KW - Aquatic ecosystem models
KW - High-altitude mountain lakes
UR - http://www.scopus.com/inward/record.url?scp=84872707195&partnerID=8YFLogxK
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U2 - 10.1016/j.ecolmodel.2012.12.014
DO - 10.1016/j.ecolmodel.2012.12.014
M3 - Article
AN - SCOPUS:84872707195
SN - 0304-3800
VL - 251
SP - 211
EP - 220
JO - Ecological Modelling
JF - Ecological Modelling
ER -