Results 241 to 250 of about 330,338 (279)

Reaction of Harbor Seals to Cruise Ships

The Journal of Wildlife Management, 2010
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 critical periods of pupping, breeding, and molting when visits by tour ships also ...
John K. Jansen, Peter L. Boveng, Shawn P. Dahle, John L. Bengtson   +3 more
openaire   +1 more source

Directional hearing of a harbor seal in air and water

The Journal of the Acoustical Society of America, 1974
Minimum audible angles (MAA) of a harbor seal were determined using a click-train stimulus (left-right, forced choice) and found to be 9°±4° underwater and 3°±4° in air. After accounting for the sound-speed differences, the MAAs and the similarities of the psychometric functions suggest that interaural time differences provide the most important clue ...
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Diffuse Muscular Degeneration in Captive Harbor Seals

Journal of the American Veterinary Medical Association, 1972
SUMMARY Three juvenile harbor seals in captivity for 2 months developed an illness manifested as anorexia, reluctance to move, and an arched posture. Necropsy revealed diffuse muscular degeneration characterized by swollen, hyalinized, fragmented fibers. The cause of the muscle degeneration was not determined.
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Harbor Seal

JAMA, 2022
openaire   +1 more source

Coccidiosis in Harbor Seals

Journal of the American Veterinary Medical Association, 1974
C K, Hsu, E C, Melby, N H, Altman, J D, Burek   +3 more
openaire   +2 more sources

Pelage polymorphism in Pacific harbor seals

Canadian Journal of Zoology, 1981
Regional variation in the percentages of harbor seals, Phoca vitulina, in light- and dark-phase pelages has been reported recently. Distributions of color phases among sex classes and age-classes and within family groups were examined during two pupping seasons on Tugidak Island and one season on Otter Island, Alaska.
openaire   +1 more source

Survival of neonatal harbor seals

Journal of the American Veterinary Medical Association, 1987
Laurie J. Gage, Leslie A. Dierauf
openaire   +3 more sources

Dirofilaria immitis Infection in a Harbor Seal

Journal of the American Veterinary Medical Association, 1975
W, Medway, T C, Wieland
openaire   +2 more sources

Harbor Seal

2018
Jonas Teilmann, Anders Galatius
openaire   +1 more source

Nephrolithiasis in a Harbor Seal

Journal of the American Veterinary Medical Association, 1979
openaire   +2 more sources