Principal Investigator:Hebben, Thorsten Licenced Year(s):
The objective of this study is to examine the migratory habits of epipelic algae in 10 small, shallow bodies of water in the region of the arctic circle. A 3/4 ton 4x4 pickup truck will be used to travel to each of ten ponds located 6 km north of Inuvik, N.W.T. The ponds will be sampled over a period of 2 days each between July 6 and July 20, 1999, using a technique perfected during the summer o...
Principal Investigator:Lesack, Lance Licenced Year(s):20162015201420102009200720062005200420032002200120001999199819971996
The researchers will be focused on two locations. At the Havik Pak Creek site, research will involve examining the chemistry of streamwater and the chemistry of lakes within selected sub-basins during the snowmelt period. At the NRC Lake and South Lake site, the research will involve measuring how well algae communities are able to grow when they experience concentrations of suspended sediments o...
Principal Investigator:Sheath, Robert Licenced Year(s):
Microscopic algae in tundra streams constitute the base of food chains in these habitats yet they are poorly studied. Their composition appears to be an extension of a portion of the temperate flora. The research will continue a survey of these species and an examination of their physiological adaptations to such a stressful habitat....
Principal Investigator:Perin, Sofia Licenced Year(s):
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 ...
Principal Investigator:Pelletier, Clem Licenced Year(s):
In project area streams, fish presence/absence and/or densities will be obtained by electrofishing representative habitat. Benthic invertebrates ans periphyton (stream algae) will be sampled at stream sites to determine seasonal changes in composition, distribution and abundance. Lake fisheries population studies will involve fish trapping. Lake limnology, plankton and benthic invertebrates wil...
Principal Investigator:Bliss, Lawrence Licenced Year(s):
We seek to better understand how ecosystems develop in the high arctic following retreat of ice caps. This includes studies of soil development and the influence that rocks play in this as well as studying the development of block crusts of organisms that form on the soil surface. We will also try to understand the role these crusts play in fixing nitrogen and influencing the development of flower...
Principal Investigator:Cota, Glenn Licenced Year(s):
Light leaving the ocean's surface can be detected remotely by satellite. With the proper conversion factors satellites can tell us the amount & growth of plant material in the oceans. Microscopic plants comprise the base of the marine food chain, serving as food for all animals. Because of their dark coloration plants absorb light & produce heat. We are studying what colors & how much light is abs...
Principal Investigator:Kah, Linda Licenced Year(s):
Characteristics of ancient sediments reveal information about the chemical, biological and physical environment within which these sediments were formed. By studying the patterns of rocks found in the north Baffin area, I hope to discover how much of the formation of these rocks was due to the algae that lived in ancient oceans, and how much was due to the chemical makeup of the water. The resea...
Principal Investigator:Fortier, Louis Licenced Year(s):
The researchers will be examining small marine organisms (algae, zooplankton and phytoplankton) to determine their influence on global warming. Carbon is necessary for the production of carbon dioxide (CO2), and increase levels of CO2 in the atmosphere can contribute to an increase in the earth's overall temperature. The study will examine how these small marine creatures can reduce carbon level...
Principal Investigator:Lutzoni, Francois Licenced Year(s):
I will be collecting lichens in the vicinity of Iqaluit in order to better understand the variety of species that grow in the high arctic. Some species of fungi grow with algae: these partnerships are recognized as lichens. In an attempt to study this partnership, I will separate the fungi part from the algae and grow each separately in a laboratory. I will also be visiting Greenland and Icelan...