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Spreading dynamic of an invasive alien species and impact on the boreal aquatic fauna

  • Direction : Guillaume Grosbois, Béatrix Beisner
  • Institution : UQAT
  • programme : Ph.D. in forest ecology
  • Support financier : Scholarship of $21,000 per year for 3 years.
  • Date d'inscription : May 2022
  • Offre en format pdf: Télécharger

The spiny water flea (Bythotrephes longimanus) is an invasive alien species from Eurasia detected for the first time in North America in the 80’s. Since then, it has drastically modified the Great Lakes food webs and many lakes of the temperate and boreal forest. The spiny water flea was detected in Abitibi-Témiscamingue for the first time in 2018 but its impacts on zooplankton and fish communities remain unknown.

objective of this project is to better understand the invasion dynamics of the spiny water flea in Abitibi-Témiscamingue (Quebec, Canada), to limit its spread.

Axis 1 will aim to evaluate the lake vulnerability in Abitibi- Témiscamingue to the spiny water flea invasion and to identify the main variables involved in the spread of the spiny water flea.

Axis 2 will aim to evaluate the impacts of this invasion on boreal aquatic food webs using sampling of numerous lakes in Quebec and Ontario.

Profil recherché

  • Education: Master's degree in ecology, biology or environmental sciences with a particular interest in aquatic environments and/or ecotoxicology.
  • Requirement: Be motivated and determined to contribute to the improvement of the health of degraded ecosystems. Enjoy working outdoors in natural environments, on the water and in a multi-sectoral team. Driver's license required, boat license is a bonus.
  • Skills: Leadership, autonomy, dynamism, organizational skills, determination, curiosity, ability to communicate
  • Assets: Statistics courses, ability to swim, first aid training.
  • Equity, Diversity, Inclusion: We encourage applications from people from under-represented groups in science (Indigenous people, women, visible and ethnic minorities, LGBTQ+).


The student will be part of the Research Group in Ecology of the MRC-Abitibi (GREMA) and will be based at the Amos campus of the Forest Research Institute (IRF) of the Université du Québec en Abitibi-Témiscamingue (UQAT). UQAT offers a quality environment for students, close to nature, with many cultural activities and an excellent quality of life thanks to its many outdoor activities. Our research team is young, dynamic and multicultural. Although UQAT is a French-speaking university, we offer a bilingual French-English environment for successful research. The student will be a member of strategic groups of excellence in Canada such as the Interuniversity Research Group in Limnology (GRIL) and will work in close collaboration with our partners. The project will include a significant amount of fieldwork for lake sampling, as well as laboratory analysis and writing scientific papers.


Director: Guillaume Grosbois (UQAT)

Codirectos : Beatrix Beisner (UQAM)

Collaborators : Shelley Arnott (Queen’s University), Philippe Marchand (UQAT), Miguel Montoro Girona (UQAT), Olivier Morissette et Jean-Pierre Hamel (MFFP)

Partenaires : Fondation de la Faune du Québec, Conseil régional de l’environnement de l’Abitibi-Témiscamingue, Organisme du Bassin-Versant du Témiscamingue, Organisme du Bassin-Versant de l’Abitibi-Jamésie, Société des Établissements de Plein Air du Québec


Send your resume, cover letter, transcripts and contact information for two references to the attention of Guillaume Grosbois (

We are waiting for your applications! Come and share a great professional adventure with us and contribute to the restoration of aquatic ecosystems!