Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


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

Last update: May 2021

Menu Logo Principal CESAB Powell Center logo univ-vermont logo-usgs-logo

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,