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Showing 1 to 8 of 8 for “"beluga whale"”.
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Examining Individual Identity in Beluga Whale (Delphinapterus leucas) Acoustic Repertoires as a Function of Call Type
<p>Beluga whales (<em>Delphinapterus leucas</em>) are highly social odontocetes with complex vocal repertoires, yet it remains unclear if they encode individual identity within calls or how receivers interpret such cues. Their repertoire includes tonal and pulsed sounds, which exist along a graded …
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High frequency sonar components of normal and hearing impaired dolphins
… was constructed and tested to obtain toothed whale (Bottlenose Dolphin and Beluga Whale) sonar signals and digitally store them to a PC hard drive. The device had the capability of capturing sonar signals by means of a two-hydrophone array, and a digital video camera in a submersible housing. …
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Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale
… Hg was localized through autometallography in beluga hepatic and renal light microscopic sections. Metal grains occurred at high densities in kidney cortical tubular epithelium, with lower densities in medullary tubular epithelium. In liver, metal grain deposition showed marked zonation, …
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First Thirty Days of Life: Examining Calf Behavioral Development in Beluga Whales (<i>Delphinapterus leucas</i>) and Pacific White-Sided Dolphins (<i>Lagenorhyncus obliquidens</i>) at One Zoological Facility
… (<em>Lagenorhyncus obliquidens</em>). Eight beluga whale calves and four Pacific white-sided dolphin calves were observed for the first 30 days of life to determine the developmental trajectory of several typically monitored behaviors. The first occurrence and developmental trajectory for …
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Hydrological and ecological observations along the eastern Beaufort Sea coast of Alaska
… example, 15 - 70% of polar bear and 0 - 60% of beluga whale carbon was of terrestrial origin. Our results suggest that 1) CT assimilated by benthic omnivorous invertebrates is transferred to the highest trophic levels in the Beaufort Sea, and 2) arctic cod are the most likely intermediary for …
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Tetrachlorobiphenyl metabolism, toxicity, and regulation of cytochrome P50 expression in a marine teleost fish
… metabolites by hepatic microsomes from scup, beluga whale, and pilot whale. Induction response, correlation analysis, and inhibition studies indicate that 3,3',4,4'-TCB is metabolized by scup CYP1A1, and 2,2',5,5'-TCB by the putative scup CYP2B. Correlation analysis and inhibition studies …
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Microanatomic structure of cetacean skin in the urogenital region
… harbor porpoise (Phocoena phocoena), pygmy sperm whale (Kogia breviceps), short and long finned pilot whales (Globicephala macrorhynchus and malaena respectively), beluga whale (Delphinapterus leucas), humpback whale (Megaptera novaeangliae), and fin whale (Balaenoptera physalus). Measurements …
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Management and regulation of local subsistence hunting in north Alaska
… Goose Management Plan, the Alaska and lnuvialuit Beluga Whale Committee, the lnuvialuit Game CouncilNorth Slope Borough management agreement for polar bears in the southern Beaufort Sea, and cooperative management of caribou. This examination determines which management and regulatory practices …