9 record(s) found with the tag "aquatic food web" (multi-year projects are grouped):
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Amendment - Hydro-ecological Responses of Arctic Tundra Lakes to Climate Change and Landscape Perturbation
Principal Investigator: Wrona, Frederick J
Licensed Year(s): 2011 2010 2009
Summary: The overall objective of this research component is to improve the knowledge on present-day food webs/productivity in small Arctic pond/lake systems, in order to better predict changes that could occur under changing climate. The methodology described below pertains to all new research activities related to this new research component dealing with fish. All other research activities related to ...

Biogeochemistry of Lakes in the Mackenzie Delta
Principal Investigator: Lesack, Lance
Licensed Year(s): 2017 2016 2015 2014 2010 2009 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993
Summary: The long-term goal of this project is to develop a biogeochemical model for lakes in the Mackenzie Delta, and ultimately, a more general ecosystem model for floodplains and deltas of major world rivers that will help assess the effects of multiple stresses on rivers resulting from global change. Numerous major river deltas in the Arctic circumpolar region are lake-rich because of thermokarst effec...

Seasonal movements of lake trout, lake whitefish, and northern pike in a small Northern Shield lake
Principal Investigator: Dick, Terry A.
Licensed Year(s): 2005 2004
Summary: A greater understanding of the community interactions in a small northern freshwater lake is necessary to understand the biology and ecology of important species such as lake trout, lake whitefish, and northern pike. The specific objectives are; 1) to ev...

Desperation Pond and Carrie Pond Fish Transfer Program
Principal Investigator: Armstrong, Allison
Licensed Year(s): 2001
Summary: The capture and processing of fishes, including biological data collection, sample analysis, and recording of field data are the responsibility of BHP based on DFO approved methods described herein. The Project Biologist will be at site during crew training, to participate in the collection of data and to ensure the quality of data. The Project Biologist will also be responsible for collating an...

Sable and Two-Rock Lake Fish-Out
Principal Investigator: Armstrong, Allison
Licensed Year(s): 2002 2001
Summary: The objective of the fish-out is to provide scientifically defensible data to: (1) quantify fish production, fish habitat and productivity of the intermediate trophic levels (primary and secondary producers); (2) establish linkages between fish habitat and fish productivity in Sable and Two-Rock Lakes; (3) establish a reference database through which comparisons among lakes can be conducted; and (...

Temporal Variability of Stable Carbon and Nitrogen within the Food Webs of Wood Buffalo National Park
Principal Investigator: Sotiropoulos, Maria
Licensed Year(s): 2000
Summary: The extensive wetland complex in Wood Buffalo National Park (WBNP) is composed of a mosaic of shallow ponds that are unique in Canada. They are also the nesting grounds of the last migratory population of Whooping Cranes. Water, organic matter, aquatic plants and small aquatic life forms will be sampled from ponds just outside the nesting area and 0.5 km from the highway. The research team will ...

Licence #4097
Principal Investigator: Green, John M.
Licensed Year(s): 1984
Summary: To further investigate the abundance and distribution patterns of benthic fishes to provide a better basis for understanding variations in the foraging behaviour and reproductive success of the black guillemots. Underwater observations will be made on benthic fishes and some specimens will be collected for analysis of their food habits, growth rates and fecundity....

Licence #4017
Principal Investigator: Welch, Harold
Licensed Year(s): 1984
Summary: To carry out a study on quantification of the marine food chain leading to marine mammal production....

Licence #2796
Principal Investigator: Sprague, John B.
Licensed Year(s): 1982
Summary: To collect specimens of arctic cod (Boreogadus saida) and common amphipod crustaceans in order to examine cadmium in food-chains....