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THE ABUNDANCE OF HARBOR SEALS IN THE GULF OF ALASKA
The abundance of harbor seals (Phoca vitulina richardii) has declined in recent decades at several Alaska locations. The causes of these declines are unknown, but there is concern about the status ofExpand
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Foraging modes of chinstrap penguins: contrasts between day and night
Penguins rely on vision to travel and hunt at sea. Vision in marine predators, particularly those hunting phototactic prey under a broad range of light intensities, must be better understood toExpand
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Reaction of Harbor Seals to Cruise Ships
Abstract The largest aggregations of harbor seals (Phoca vitulina) in Alaska, USA, haul out on floating ice in tidewater glacial fjords. Seals use these fjords in peak numbers during the criticalExpand
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Arctic fox home range characteristics in an oil-development area
Spring and summer home ranges and local movements of arctic foxes (Alopex lagopus) were studied from 1975 to 1977 at the Prudhoe Bay oil-development area in northern Alaska. Twenty-seven adult and 62Expand
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Reproductive aspects of female crabeater seals (Lobodon carcinophagus) along the Antarctic Peninsula
Examination of a sample of 94 female crabeater seals collected in November, 1977, indicated that, for the past 7 years, the average age at sexual maturity was 3.8 years. Reproductive performance asExpand
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Estimating Food Consumption of Free-Ranging Manatees in Florida
GRINNELL, J., J. S. DIXON, AND J. M. LINSDALE. 1937. Fur-bearing mammals of California. Univ. California Press, Berkeley. 777pp. HARGIS, C. D. 1981. Winter habitat utilization and food habits of theExpand
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Status review of the spotted seal (Phoca largha)
uses the NOAA Technical Memorandum series to issue informal scientific and technical publications when complete formal review and editorial processing are not appropriate or feasible. DocumentsExpand
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Diving and haulout behavior of crabeater seals in the Weddell Sea, Antarctica, during March 1986
SummaryTime-depth recorders were used to study the diving and haulout behavior of six crabeater seals in the marginal. ice edge zone of the Weddell Sea during March 1986. Haulout patterns revealedExpand
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A REVIEW OF DATA ON ABUNDANCE, TRENDS IN ABUNDANCE, HABITAT USE AND DIET OF ICE-BREEDING SEALS IN THE SOUTHERN OCEAN
The development of models of marine ecosystems in the Southern Ocean is becoming increasingly important as a means of understanding and managing impacts such as exploitation and climate change.Expand
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Moult habitat, pre- and post-moult diet and post-moult travel of Ross Sea emperor penguins
During a series of transect legs through the pack ice of the eastern Ross Sea, aboard the RV icebreaker 'Nathaniel B. Palmer', we: (1) assessed the habitat chosen for moulting by emperor penguins,Expand
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