4 record(s) found for principle investigator "Welch, Harold" (multi-year projects are grouped):
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Productivity of Marine Mammal Food Chains in the Northwest Passage
Principal Investigator: Welch, Harold
Licenced Year(s): 1993 1992 1991 1990 1988 1987
Summary: The Researchers will measure the distribution of phytoplankton, nutrients and zooplankton. They will sample the benthos, especially clams. A remote camera will be set up on southwest Devon Island to monitor the coast for movements of cod and whales. If sighted they will determine their size, sample their planktonic prey and monitor predation on the school by birds and mammals....


To determine the productivity of the most important components of marine mammal food chains
Principal Investigator: Welch, Harold
Licenced Year(s): 1988
Summary: To study epontic algae and amphipods in Chesterfield inlet area; to determine dynamics of Si and N as essential nutrients; to sample stomach contents of hunter-killed seals for food habit analysis....


Licence #5026
Principal Investigator: Welch, Harold
Licenced Year(s): 1985
Summary: Epontic primary production, phytoplankton production, and subice amphipod production in the Barrow Strait area; work at the ice edges in Lancaster Sound, and summer chlorophyll distribution....


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


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