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

Dernière mise à jour : Mai 2018

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

Publications & Symposiums


Oral contributions:

  • Stockwell J. et al.   - Global evaluation of the impacts of storms on freshwater habitat and structure of phytoplankton assemblages (GEISHA). ASLO - February 26 - March 3, 2017, Honolulu, Hawaii.
  • Anneville O. et al. - Global Evaluation of the Impacts of Storms on freshwater Habitat and structure of phytoplankton Assemblages: Dealing with heterogeneous data to improve our knowledge of biodiversity dynamics and ecosystem function. Sfécologie 2018 - October 22-25, 2018, Rennes, France.
  • Stockwell J. et al.   - A global dataset on weather, lake physics, and phytoplankton dynamics. SEFS12 - July 25-30, 2021, Virtual Conference_Dublin.
  • Bruel R. et al.   - Impact of extreme weather events frequency and intensity in shaping phytoplankton communities. SEFS12 - July 25-30, 2021, Virtual Conference_Dublin.


  • Dur G. et al. - The GEISHA project Preliminary steps to link storms and lake phytoplankton. 17th International Symposium on River and Lake Environment (17th ISRLE) & 3rd International Symposium on Aquatic Botany (3rd ISAB) - March 26-29, 2017, Kusatsu, Japan.
  • Looi A.H.R. et al. - Can phytoplankton weather the storm? Assessing how phytoplankton communities change after storms. IAGLR - May 15-19, 2017, Detroit (MI), USA.
  • Stockwell J. et al. - GLEON Storm-Blitz: An update from the GEISHA group on the links among storms, lake physics, and phytoplankton community dynamics. GLEON 19 All Hands’meeting – November 27- December1, 2017, Mohonk Lake (NY), USA.
  • Anneville O. et al. - GEISHA/GLEON Storm-blitz: A collaborative project to better understand the responses of phytoplankton to meteorologically-induced variability in water column stability. ELLS-IAGLR2018 "Big Lakes - Small World" - September 23-28, 2018, Evian, France.
  • Doubek J. et al. - The extent and variability of storm-induced epilimnetic temperature changes in lakes worlwide using long-term and high-frequency data. GLEON 20 All Hands'meeting - December 3-7, 2018, Rottnest Island, Australia.
  • Stockwell J. et al. - Storm Impacts on Phytoplankton Community Dynamics in Lakes- GLEON 20 All Hands'meeting - December 3-7, 2018, Rottnest Island, Australia.
  • Jannatul Ferdaus A. et al. - Effect of typhoons on the phytoplankton of Lake Kasumigaura (Japan) - Joint meeting of the Japanese Society of Benthology and the Plankton Society of Japan - September 18-21, 2019, Shizuoka, Japan. 


  • Jason D. Stockwell, Jonathan P. Doubek, Rita Adrian, Orlane Anneville, Cayelan C. Carey, Laurence Carvalho, Lisette N. De Senerpont Domis, Gaël Dur, Marieke A. Frassl,  Hans-Peter Grossart, Bas W. Ibelings, Marc J. Lajeunesse, Aleksandra M. Lewandowska, María E. Llames, Shin-Ichiro S. Matsuzaki, Emily R. Nodine, Peeter Nõges, Vijay P. Patil, Francesco Pomati, Karsten Rinke, Lars G. Rudstam, James A. Rusak, Nico Salmaso, Christian T. Seltmann, Dietmar Straile, Stephen J. Thackeray, Wim Thiery, Pablo Urrutia-Cordero, Patrick Venail, Piet Verburg, R. Iestyn Woolway, Tamar Zohary, Mikkel R. Andersen, Ruchi Bhattacharya, Josef Hejzlar, Nasime Janatian, Alfred T.N.K. Kpodonu, Tanner J. Williamson, Harriet L. Wilson (2020). Storm Impacts on Phytoplankton Community Dynamics in Lakes. Global Change Biology. 26: 2756–2784.
  • Jonathan P. Doubek, Orlane Anneville, Gaël Dur, Aleksandra M. Lewandowska, Vijay P. Patil, James A. Rusak, Nico Salmaso, Christian Torsten Seltmann, Dietmar Straile, Pablo Urrutia-Cordero, Patrick Venail, Rita Adrian, María B. Alfonso, Curtis L. DeGasperi, Elvira de Eyto, Heidrun Feuchtmayr, Evelyn E. Gaiser, Scott F. Girdner, Jennifer L. Graham, Hans-Peter Grossart, Josef Hejzlar, Stéphan Jacquet, Georgiy Kirillin, María E. Llames, Shin-Ichiro S. Matsuzaki, Emily R. Nodine, Maria Cintia Piccolo, Don C. Pierson, Alon Rimmer, Lars G. Rudstam, Steven Sadro, Hilary M. Swain,Stephen J. Thackeray, Wim Thiery, Piet Verburg, Tamar Zohary, Jason D. Stockwell (2021).The extent and variability of storm-induced temperature changes in lakes measured with long-term and high-frequency data. Limnology and Oceanography.


GEISHA has produced a functional classification to facilitate the use of robust, repeatable functional classification systems. The “algaeClassify” R-package, is available on the CRAN repository. It contains R-code designed to facilitate the application of common morpho-functional (MFG;  Salmaso et al. 2015 <doi:10.1111/fwb.12520>) and life-history classifications (CSR, Reynolds 1988) to phytoplankton species lists and/or trait datasets.

Package Information:

Title: Determine Phytoplankton Functional Groups Based on Functional Traits

Author(s): Vijay Patil [aut, cre],  Torsten Seltmann [aut],  Nico Salmaso [aut], Orlane Anneville [aut], Marc Lajeunesse [aut], Dietmar Straile [aut] 

Maintainer: Vijay Patil <>

Description: Verify accepted taxonomic nomenclature of phytoplankton species, assign species to functional group classifications, and manipulate taxonomic and functional diversity data. Possible functional classifications include Morpho-functional group (MFG; Salmaso et al. 2015 <doi:10.1111/fwb.12520>) and CSR (Reynolds 1988; Functional morphology and the adaptive strategies of phytoplankton. In C.D. Sandgren (ed). Growth and reproductive strategies of freshwater phytoplankton, 388-433. Cambridge University Press, New York). It also includes functions to query names using the algaebase online taxonomic database (<>; <doi:10.7872/crya.v35.iss2.2014.105>).

To cite the package:  run citation("algaeClassify") in R


The quality checked and derived data used by the GEISHA core group have been uploaded to the FEMC archive/portal system. Some data are available online upon request at

Project Citation: Jason D. Stockwell (2020) Global Evaluation of the Impacts of Storms on freshwater Habitat and Structure of phytoplankton Assemblages (GEISHA). FEMC.

Press release

- Le dauphiné libéré. 10-05-2018. Interviewed: Anneville Orlane & Stockwell Jason D. - « Ils passent à la loupe l’effet des tempêtes sur les lacs ».


- News coverage of Stockwell et al's paper ( See French version on English versions:

- Media release of Doubek et al's paper ( "Lake Temperatures in the Time of Climate Change - International Collaboration to Better Understand Storm Impacts on Lakes in a Changing Climate".



Aside productions supported through the GEISHA project


Perkins D.M, A. Perna, R. Adrian, P. Cermeño, U. Gaedke, M. Huete-Ortega, E.P. White and G. Yvon-Durocher (2019). Energetic equivalence underpins the size structure of tree and phytoplankton communities. Nature communications.

Anneville O., C.W. Chang, G. Dur, S. Souissi, F. Rimet, C.H. Hsieh (2019). The paradox of re-oligotrophication: the role of bottom-up versus top-down controls on the phytoplankton community. Oikos.

Chang C.W., H. Ye, T. Miki, E.R. Deyle, S. Souissi, O. Anneville, R. Adrian, Y-R. Chiang, S. Ichise, M. Kumagai, S.S. Matsuzaki, F-K. Shiah, J.-T. Wu, C. Hsieh, G. Sugihara (2020). Long-term warming destabilizes aquatic ecosystems through weakening biodiversity-mediated causal networks. Global Change Biology.

Kakouei K., B.M. Kraemer, O. Anneville, L. Carvalho, H. Feuchtmayr, J.L. Graham, S. Higgins , F. Pomati, L. G. Rudstam, J.D. Stockwell, S.J. Thackeray, M.J. Vanni,  Arian R. (2021). Phytoplankton and cyanobacteria abundances in mid-21st century lakes depend strongly on future land use and climate projections. Global Change Biology.

Chang, CW., T. Miki, H. Ye, S. Souissi, R. Adrian, O. Anneville, H. Agasild, S. Ban, Y. Be’eri-Shlevin, Y-R. Chiang, H. Feuchtmayr, G. Gal, S. Ichise, M. Kagami, M. Kumagai, X. Liu, S.-I. S. Matsuzaki, M.M. Manca, P. Nõges, R. Piscia, M. Rogora, F.-K. Shiah, S.J. Thackeray, C.E. Widdicombe, J.-T. Wu, T. Zohary, Hsieh C. (2022). Causal networks of phytoplankton diversity and biomass are modulated by environmental context. Nature Communications 13, 1140.

Oral Contributions in symposiums:

Beltram Tergolina, V., Jiang, Y., Schmitt, F., Berti, S., Calzavarini, E., and Anneville, O. - Power-law thermal stratification in lake Geneva and its seasonal evolution. EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-8821- 3 March 2021,