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Article: A 10400-year-old bowhead whale (Balaena mysticetus) skull from Ellef Ringnes Island, Nunavut: implications for sea-ice conditions in high Arctic Canada at the end of the last glaciation.(Report)
- Article from:
- Arctic
- Article date:
- March 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 Arctic Institute of North America of the University of Calgary. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT. Variations in the distribution and radiocarbon ages of postglacial bowhead whale (Balaena mysticetus) remains throughout the Canadian Arctic Archipelago indicate that the range of this whale expanded and contracted several times during the Holocene. Since the annual bowhead migration reflects the preference of this species for an ice-edge habitat, fossil bowheads have been used to infer that significant variations in summer sea-ice extent occurred throughout the archipelago during the last 10.5 thousand years. Previous studies have demonstrated that climatic amelioration, concomitant with enhanced meltwater flux from the retreating Laurentide Ice Sheet, cleared ...
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Article: Polynyas and tidal currents in the Canadian Arctic ...
Arctic;
March 1, 2009 ;
700+ words
... ... ABSTRACT. A tidal model of the Canadian Arctic Archipelago was used to map the strength of the ... the summer. Key words: Canadian Arctic Archipelago, polynyas, tidal currents, tidal ... widely distributed across the Canadian Arctic Archipelago (Fig. 1). From the physical point ...
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