Principal Investigator:English, Michael C Licenced Year(s):
This research is physically based on a peat plateau and a peat bog, both close to Yellowknife. There are two primary objectives to this research. The first involves quantifying surface energy balances in areas where degradation of peat is pronounced and where it is not. Suprapermafrost water from the degraded and non-degraded sites will be analyzed for nutrients and dissolved organic carbon (DOC) ...
Principal Investigator:Vincent, W.F. Licenced Year(s):
There is increasing evidence that levels of solar UV-B radiation have begun to rise in the high Arctic. Little is known about microbial life-forms in the ecosystems of Arctic lakes and rivers and their UV-B resistance. A sampling hole will be drilled in the lake ice. These samples of zooplankton will be studied by a microscope. Samples of water and periphytic communites will also be taken. Underw...
Principal Investigator:Howard, Susan Licenced Year(s):
Ozone depletion in the High Arctic could result in exposure of aquatic organisms (such as bacteria) to higher levels of ultraviolet (UV) radiation from the sun. This increased exposure to radiation may be harmful to bacteria and have an effect on organisms which feed on bacteria. I will collect water samples from lakes and ponds in the Resolute area in order to measure bacterial growth rates as ...
Principal Investigator:Hickie, John P. Licenced Year(s):
To monitor the intensity of ultraviolet B radiation from the sun and collect blood samples from collared lammings for vitamin D content determination. The purpose of this work is to determine if native people whose diet is changing will need supplementary vitamin D to prevent certain types of disease, (e.g. rickets)....