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24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

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GEISHA-Stormblitz : Global Evaluation of the Impacts of Storms on freshwater Habitat and structure of phytoplankton Assemblages

Acknowledgments & Links

All quality checked and derived data that have been produced by the GEISHA core group are archived in the FEMC archive/portal system. Some data are available online upon request at Project Citation: Jason Stockwell (2020) Global Evaluation of the Impacts of Storms on freshwater Habitat and Structure of phytoplankton Assemblages (GEISHA). FEMC.

Please contact the principal investigators for more information ( ;;  


GEISHA has been funded by the Synthesis center CESAB of the French Foundation for Research on Biodiversity (FRB - and John Wesley Powell Center.

The GEISHA team thanks the French Embassy in Canada and the U.S. Department of State and the Commission Franco-Américaine for financial support through respectively a Mourou/Strickland fellowship to O. Anneville and a Fulbright Award to J.D. Stockwell to support this work. We also thank the University of Savoie Mont-Blanc and the Vermont Water Resources and Lake Studies Center (G16AP00087) for additional funding.

The GEISHA team is also grateful to the numerous technicians, engineers and scientists who collected, analyzed the samples and gathered the data from each lake over the past 45+ years.

Data from Oneida Lake is collected with support from Cornell University’s Brown Endowment, New York State Department of Environmental Conservation (NYSDEC), and United States Department of Agriculture (USDA), National Institute of Food and Agriculture (NIFA), Hatch project 0226747.

Collection of long-term monitoring data from Lake Champlain (VT & NY, USA) is supported by the Lake Champlain Basin Program, the Vermont Agency of Natural Resources and the New York Department of Environmental Conservation.

Data from Lake Annie was provided by Archbold Biological Station. Archbold Biological Station, established in 1941, is the primary division of Archbold Expeditions, a not-for-profit independent research institution in central Florida. The Station is dedicated to long-term ecological research, part of the global effort to understand, interpret and preserve the world’s natural heritage.

Data from Lake Chascomús (Argentina) were collected by the Instituto Tecnológico de Chascomús (INTECH). Phytoplankton counts were made by María Eugenia Llames, Clara Iachetti and María Paula Huber. Field work, physical and chemical determinations were performed by Roberto Escaray, José Bustingorry and Leonardo Lagomarsino. Project coordinator: Horacio Zagarese. Financial support was provided by the Argentine network for the assessment and monitoring of Pampean shallow lakes (PAMPA2 - CONICET) and grants from ANPCyT.

Long-term research on Lake Maggiore has been funded by the International Commission for the Protection of Swiss-Italian Waters (CIPAIS). Investigations on Lake Maggiore are also performed within the framework of the LTER (Long Term Ecological Research) Italian and European networks, site ‘‘Southern Alpine lakes’’.

Data for Lakes Annecy, Bourget and Geneva are contributed by the Observatory of alpine LAkes  (OLA),  © SOERE OLA-IS, AnaEE-France, INRA of Thonon-les-Bains, SILA, CISALB, CIPEL.

Nutrient data for Lake Võrtsjärv were provided by Tartu department of Estonian Environmental Research Centre. Hydrological data for the lake and part of meteorological data (st. Tõravere) were contributed by Estonian Environment Agency. Phytoplankton analyses were made by the Centre for Limnology at Estonian University of Life Sciences.

Cumbrian Lakes and Loch Leven data were collected as part of the Centre for Ecology & Hydrology’s lake monitoring programme, supported by core national capability funding. Data were extracted and prepared by Heidrun Feuchtmayr and Helen Woods. Debbie Hemming prepared Windermere meteorological data under a grant from the Natural Environment Research Council (NERC) grant NE/J02080X/1.

Long-term monitoring data from Rimov Reservoir, Czechia, were provided by the Biology Centre of the Czech Academy of Sciences, Institute of Hydrobiology (BCCAS-IHB). Investigations on Rimov Reservoir are also performed within the framework of the LTER (Long Term Ecological Research) Czech and European networks.

Data from Lake Kinneret, Israel, were collected as part of a long-term monitoring program on this lake, conducted by the Kinneret Limnological Laboratory, Israel Oceanographic & Limnological Research, and funded by the Israel Water Authority. Phytoplankton counts were made by Tatiana Fishbein (until 2012) and later by Alla Alster. Physical data were collected by Yury Lechinsky. Chemical analyses were conducted by Mekorot Water Company, Watershed Unit, with oversight by Ami Nishri (till 2013) and later by Yaron Beeri-Shlavin. Database management services were provided by Miki Shlichter.

The Belgian Science Policy Office (BELSPO) is acknowledged for the support of Lake Kivu research through the research project EAGLES (CD/AR/02A).

Data from Lake Kasumigaura, Japan, were provided by a long-term lake monitoring program conducted by National Institute for Environmental Studies (NIES).

Data from Lake Taupo, New Zealand, were collected as part of a long-term monitoring program on this lake, conducted by the National Institute of Water & Atmospheric Research (NIWA), and funded by the Waikato Regional Council. Phytoplankton counts were made by Karl Safi. Weather data are from the Taupo automatic buoy station operated by the monitoring program since 2015, and from several land based meteorological stations. Chemical analyses were conducted by NIWA’s Water Quality Laboratory. Field work, physical and chemical sample collections were performed by the Taupo Harbourmaster, Anathea Albert, Eddie Bowman and Piet Verburg. The lake monitoring program has been led by Piet Verburg since 2013, and by Max Gibbs before then.