Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012
نویسندگان
چکیده
منابع مشابه
Trends in sea ice cover within habitats used by bowhead whales in the western Arctic.
We examined trends in sea ice cover between 1979 and 2002 in four months (March, June, September, and November) for four large (approximately 100,000 km2) and 12 small (approximately 10,000 km2) regions of the western Arctic in habitats used by bowhead whales (Balaena mysticetus). Variation in open water with year was significant in all months except March, but interactions between region and y...
متن کاملSerum chemistry of bowhead whales (Balaena mysticetus).
Sera of 19 male and female bowhead whales (Balaena mysticetus) collected near Barrow, Alaska (USA) between 30 August and 13 October 1992 were evaluated for 18 serum chemistry values. Male bowhead whales had significantly greater creatinine and sodium concentrations, and significantly lower glucose concentrations than females. Pregnant females had greater triglyceride levels than non-pregnant fe...
متن کاملThe Northwest Passage opens for bowhead whales
The loss of Arctic sea ice is predicted to open up the Northwest Passage, shortening shipping routes and facilitating the exchange of marine organisms between the Atlantic and the Pacific oceans. Here, we present the first observations of distribution overlap of bowhead whales (Balaena mysticetus) from the two oceans in the Northwest Passage, demonstrating this route is already connecting whale...
متن کاملEvaluation of the Potential to Use Capture-recapture Analyses of Photographs to Estimate the Size of the Eastern Canada — West Greenland Bowhead Whale (Balaena mysticetus) Population
The summering areas of the Eastern Canada-West Greenland (EC-WG) population of Bowhead Whales (Balaena mysticetus) are large and remote, making it difficult to conduct a systematic aerial survey of the entire range in a short period of time. Surveys conducted in different parts of the Bowhead Whales' summer range at different times or in different years cannot be used to obtain a robust estimat...
متن کاملSize-class Segregation of Bowhead Whales Discerned through Aerial Stereophotogrammetry
Bowhead whales (Balaena mysticetus) summering in the eastern Beaufort Sea in 1983 were measured through aerial stereophotogrammetry. Photos were taken from a turbine Aerocommander 690 with wingtip-mounted, calibrated 35-mm cameras. Photos were measured on an analytical plotter with scale data provided by radar altimeter and focal length of the lenses. Coefficient of variation of known-sized tar...
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ژورنال
عنوان ژورنال: Progress in Oceanography
سال: 2015
ISSN: 0079-6611
DOI: 10.1016/j.pocean.2014.08.012