Presents results of aerial reconnaissance surveys of the white whale population of the Mackenzie River estuary from 1976 to 1985. Information is included on survey and data analysis methods, and on whale distribution and abundance (focusing on the 1985 survey), whale behaviour, and neonate sightings. Concludes with discussion on the timing and pattern of white whale movement and distribution, possible biases in survey technique, yearly trends in whale abundance, whale uses of the estuary, and effects of industrial activities on white whales.

This study examines the spatial distribution, relative abundance, and age segregation of bowhead whales in relation to petroleum industry activities and oceanographic features in the south-east Beaufort Sea during the 1985 open water season. Surface oceanographic conditions at the time of the aerial surveys (August-September) are described using satellite imagery analyses and in-situ temperature and wind data from industry vessels. Aerial photographic surveys provided information on the age/size class distribution and site tenacity of bowhead whales within the study area. Bowhead sightings recorded by other researchers working in that area during 1985 are also examined. Comparisons are made with results of previous bowhead whale surveys in the area.

"From the pressures of development, technological advances, globalization and climate change to social and cultural life, this book attempts to define the nature of competing demands and assess their impact on the environment. These essays provide a detailed examination of ocean and coastal management in the Canadian north, exploring a wide range of issues critical to environmental stewardship, and breaking the ice to connect academics, government managers, policy-makers, aboriginal groups and industry." --Book Jacket.