aquatic ecosystems

Changing ice-cover regimes in a warmer climate: Effects on northern aquatic ecosystems

Ice Sampling at Lake Almberga

Ice Sampling at Lake Almberga

Changing ice-cover regimes in a warmer climate: Effects on northern aquatic ecosystems

Project summary

The goal of this project is to assess the effects of changing ice-cover regimes on aquatic primary production and carbon metabolism in northern freshwater and brackish water coastal ecosystems. Northern aquatic ecosystems are seasonally variable due to long, cold and dark ice-covered winters as well as 24-hour sunlight during summer. A warmer climate has effects on the extensions and magnitudes of snow- and ice-cover, with shorter duration of ice-cover expected for northern aquatic ecosystems. The ice-cover is important for carbon accumulation (CO2 and CH4), aquatic-atmosphere gas exchange and a number of biological processes. Hence, a changing ice-cover regime will have important implications for the function of northern aquatic ecosystems and for the role of these systems in the global carbon cycle.

Project Dates: 2017 - 2020

Funding Organisations

Formas
EcoChange

Collaborators

Erin Hotchkiss, Virginia Polytechnic Institute and State University
Rolf Vinebrooke, University of Alberta