Tag Archives: Historic collections

Freshwater microbiology and climate change in the Canadian Arctic | Microbial Diversity

The Arctic is warming at rates more than twice the global average, and much larger changes are projected for high northern latitudes by the end of this century. In our project we study freshwater microbiology to identify sentinel microbiome properties of northern freshwater environments that can be used to improve surveillance of Arctic ecosystem health in the face of these increasing climate perturbations. The project is funded by funded by a UK-Canadian partnership bursary and in collaboration with researchers from Laval University and Centre for Northern Studies (CEN) – and is part of Sentinel North.

Panoramic photo showing the landscape. Various shrubs, trees and bushes are visible on a rocky ground in the foreground. A pool stretches from the middle to the bottom of the image to the right of the centre. A scattering of coniferous trees are present at the rear of the image.

Sub-Arctic taiga landscape with diverse freshwater ecosystems near Kuujjuarapik-Whapmagoostui, Nunavik, northern Quebec, Canada

Of particular importance are cyanobacteria, also known as blue-green algae, as they are keystone primary producers, contributors of bioavailable nitrogen, drivers of food webs and carbon cycling in Arctic freshwater ecosystems. However, little is known about their biodiversity in the Canadian Arctic. I therefore, visited Canada this August to carry out field work and collect samples from freshwater environments such as lakes, ponds and streams to carry out DNA sequencing analysis of the freshwater microbiology.

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