The Effects of UV-B Radiation On the Community of Arctic Lakes

Regions: Qikiqtaaluk Region, Nunavut

Tags: biology, arctic lakes, biomass, invertebrates, algae

Principal Investigator: Perin, Sofia (1)
Licence Number: 12682
Organization: Trent University
Licenced Year(s): 1994
Issued: Jan 01, 1994
Project Team: R. Round, D. Lean, M. Amyot

Objective(s): To predict changes at the ecosystem level from a long-term enclosure experiment in high Arctic lakes or ponds that may occur due to increases in UV-B levels.

Project Description: This study will be done by setting up 6 enclosures in a lake or pond. Two enclosures will be exposed to reduced UV-B levels, two other enclosures will be exposed to ambient UV-B levels, and finally two other enclosures will be exposed to enhanced UV-B levels. Regular measurements will be made of algae and invertebrates biomass, species composition, and pigment; and of algal photosynthesis and end products in all 6 enclosures and in the lake.