31 record(s) found with the tag "aquatic invertebrates" (multi-year projects are grouped):
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Collection of Silurian fishes and trilobites and articulated remains of Devonian chondrichthyans and other fishes from the Mackenzie Mountains, N.W.T.
Principal Investigator: Wilson, Mark V.H.
Licensed Year(s): 2013 1998 1996 1990
Summary: The objectives of the research are 1) to collect remains of Silurian and Devonian fishes, and 2) to collect remains of Silurian trilobites. Activities are limited to travel, residence at camp locations and collection of fossils. Helicopters will be used to access camp sites. We plan to land at Avalanche Lake on July 15, spending 6 days collecting fossils at Avalanche Lake, followed by one day of t...


Trilobite biostratigraphy of Rockslide Formation (Middle Cambrian)
Principal Investigator: Pratt, Brian R.
Licensed Year(s): 2012 2002 2000 1998
Summary: Outcrops in the Mackenzie Mountains preserve an almost uninterrupted sequence of strata of Cambrian age. This study aims to collect in bed-by-bed detail the trilobite fossils from the Rockslide Formation, the Middle Cambrian portion of the sequence. The taxonomy and biostratigraphy of these fossils will generate a refined time scale for this part of the geologic column, some half a billion years o...


Studies on the past, present and future ecological impact on Canadian northern boreal forest and arctic ecosystems due to mining activities, shown at the Great Slave Lake area, Northwest Territories, Canada
Principal Investigator: Steinecke, Karin
Licensed Year(s): 1998 1997
Summary: The project will focus on understanding, analyzing and evaluating the reactions of the northern boreal forest ecosystems in the Great Slave Lake region due to man made stress of mining, settlement and connecting activities. The project will try to develop some general conclusions, statements and model systems. The research team (2 persons) will come from Europe to Yellowknife by plane. The base wi...


Genetic Diversity in the Biota of Arctic Lakes
Principal Investigator: Hebert, Paul
Licensed Year(s): 1997
Summary: Our research will involve the survey of zooplankton communities in lakes and ponds of the Mackenzie Delta area (Inuvialuit private lands). Samples will be collected by either wading in ponds or by towing at net behind a float equipped helicopter. Samples will be frozen in liquid nitrogen, and subsequently examined for genetic variation. Our work aims to establish the species diversity of zoopla...


Metabolism of arctic fish and invertebrates
Principal Investigator: Gerrits, Martin
Licensed Year(s): 1994
Summary: The researchers are interested in understanding how prolonged cold conditions and reduced food availability in winter affect char. Sea-run char must increase their fat levels so that they have enough energy stored for overwintering and reproduction. Research activities will also include collecting fish and invertebrate specimens to make comparisons about cold tolerance and diet of these specimen...


Ecology of the Marine Copepod, "Limnocalanus", in Relation to Bowhead Feeding Sites along the Yukon Coast
Principal Investigator: Sekarak, Aaron
Licensed Year(s): 1988
Summary: Dr. Sekarak and his team will be collecting samples of plankton and ocean water from the Canadian Beaufort Sea coastline. These samples will be brought back to the Inuvik laboratory for analysis. At Shingle Point, the researchers will also be recording weather conditions and the temperature, clarity, and salt content of the ocean. They hope to use this information to find out more about importa...


Ecology and population genetics of freshwater invertebrates of the Arctic.
Principal Investigator: Boileau, Marc G.
Licensed Year(s): 1988 1987 1986
Summary: To investigate the ecology and population genetics of crustacean zooplankton; to study the genetic diversity of the major species of copepods and their dispersal since deglaciation; to clarify the taxonomy and improve distribution records....


To determine the productivity of the most important components of marine mammal food chains
Principal Investigator: Welch, Harold
Licensed Year(s): 1993 1992 1991 1990 1988 1987
Summary: To study productivity of marine mammal food chains in Barrow Strait; emphasis in 1988 to be on Arctic cod, clams and the pelagic amphipod, "Parathemisto"...


Studies on genetic diversity in freshwater invertebrates and lake trout, at a high arctic site.
Principal Investigator: Hebert, Paul D.N.
Licensed Year(s): 1987
Summary: To continue work on the genetics and ecology of arctic freshwater organisms during 1987. To assess the levels of genetic diversity in ostracode populations, distributional patterns of the dominant ostracodes, while supplementary studies will examine the ecology of ostracode crustaceans and turbellarian flatworms. In addition small samples (5-10 individuals)of Salvelinus namaycush will be obtaine...


Continuation of the research and fieldwork on Ellesmere and Banks Island of a biostratigraphic program on the marine fauna from the Eureka Sound Formation.
Principal Investigator: Zinsmeister, William J.
Licensed Year(s): 1988 1987
Summary: To determine: (1) the composition of the marine invertebrate faunas of the Eureka Sound Formation; (2) the stratigraphic distribution of individual taxa so that a biostratigraphic zonation could be established; (3) the biogeographic relationships of the faunas of the Eureka Sound Formation with temporal faunas of the North Atlantic....


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