GASTRIC ULCERS ASSOCIATED WITH Contracaecum SPP. (NEMATODA: ASCAROIDEA) IN A STELLER SEA LION AND A WHITE PELICAN
نویسندگان
چکیده
منابع مشابه
Steller Sea Lion Recovery Investigations in Alaska , 1992 - 1994 Contributors
The United States population of Steller sea lions (SSL), Eumetopias jubatus, is classified as ''threatened'' under the Endangered Species Act" because of a recent 73% decline in numbers. National Marine Fisheries Service (NMFS) has recommended that the US population of SSL be divided into two stocks, with an east-west division at 144 west longitude, based largely on genetic evidence. Since 1992...
متن کاملAn Accounting of the Sources of Steller Sea Lion Mortality
During 1991-2000, the western stock of Steller sea lions (Eumetopias jubatus) declined at 5.2% (SE = 0.3%) per year. The population declined at statistically significant rates (P < 0.10) in all regions except the eastern Aleutian Islands. The greatest rates of declines occurred in the eastern and central Gulf of Alaska and the western Aleutian Islands (all greater than 8.6% per year). Using a p...
متن کاملSTELLER SEA LION (Eumetopias jubatus): Eastern U. S. Stock
STOCK DEFINITION AND GEOGRAPHIC RANGE Steller sea lions range along the North Pacific Rim from northern Japan to California (Loughlin et al. 1984), with centers of abundance and distribution in the Gulf of Alaska and Aleutian Islands, respectively. The species is not known to migrate, but individuals disperse widely outside of the breeding season (late May-early July), thus potentially intermix...
متن کاملGastric carcinoma in a South American sea lion (Otaria flavescens)
A 22-year-old captive male South American sea lion (Otaria flavescens) developed an undifferentiated carcinoma originating in the cardiac region of the stomach. Clinical symptoms included vomiting, anorexia and weight loss. Ultrasonography and endoscopy showed gastric wall thickness. At necropsy, the gastric wall had significant thickening around the cardiac region, and metastases were found in...
متن کاملPsychophysical and electrophysiological aerial audiograms of a Steller sea lion (Eumetopias jubatus).
A within-subject comparison of auditory steady-state response (ASSR) and psychophysical measurements of aerial hearing sensitivity was conducted with an individual of the largest otariid species, the Steller sea lion. Psychophysical methods were used to obtain an unmasked aerial audiogram at 13 frequencies, spanning a range of 0.125-34 kHz. The subject had a hearing range (frequencies audible a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Wildlife Diseases
سال: 1971
ISSN: 0090-3558
DOI: 10.7589/0090-3558-7.4.266