Results 121 to 130 of about 1,152 (169)

Food consumption and growth of California sea lions (Zalophus californianus californianus)

Zoo Biology, 2000
The daily food consumption of 26 California sea lions at the Harderwijk Marine Mammal Park was recorded. Average annual food consumption of males increased with age to stabilize at approximately 4,000 kg/year by the age of 10 years. Females showed a rapid increase in average annual food consumption until they were 3 years old.
Kastelein, RA, Schooneman, NM, Vaughan, N, Wiepkema, PR   +3 more
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Verminous Pneumonia in the California Sea Lion (Zalophus californianus)

Pathologia veterinaria, 1970
Verminous bronchitis and pneumonia due to Parafiaroides decorus infection is described in California sea lions ( Zalapbus californianus). Marked edema and multiple nodules occurred throughout the lungs. Histologically, both intact and degenerate lungworms occurred and the inflammatory response was pleomophic. A hyaline eosinophilic structure occurring
R W, Fleischman, R A, Squire
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Chronic Aortitis in the California Sea-lion, Zalophus californianus

Nature, 1960
DURING a long-term study on the general biology of the California sea-lion, Zalophus californianus (Lesson), it became evident that degenerative diseases associated with ageing are very common in this species. Therefore, a study of the heart and aorta was undertaken.
A L, KELLY, D, JENSEN
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DISSEMINATED BLASTOMYCOSIS IN TWO CALIFORNIA SEA LIONS (ZALOPHUS CALIFORNIANUS)

Journal of Zoo and Wildlife Medicine, 2000
Two captive California sea lions (Zalophus californianus) from different facilities were diagnosed with disseminated blastomycosis. The first, a 12-yr-old male, died after a 3-wk history of progressive anorexia and lethargy. Gross examination revealed acute jejunitis with focal perforation and associated peritonitis, along with severe purulent ...
L S, Zwick, M B, Briggs, S S, Tunev, C A, Lichtensteiger, R D, Murnane   +4 more
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Color vision in the California sea lion (Zalophus californianus)

Vision Research, 1992
Three California sea lions were trained to discriminate between a colored stimulus and two shades of gray in a 3-fold simultaneous choice situation. The colors blue, green and red were tested against shades of gray varying from low to high relative brightness. All animals distinguished blue from gray; two animals also distinguished green from gray; but
U, Griebel, A, Schmid
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Zalophus californianus (California sea lion)

1975
Skin biopsies of the male come from the San Diego Zoo, and that of the female, from the Lincoln Park Zoo, Chicago, Illinois, USA. A male karyotype with identical findings was made available by Drs. R. L. Snyder and D. A. Hungerford as well. The female karyotype is prepared with G-banding and displays bands in the X essentially similar to most mammals.
T. C. Hsu, Kurt Benirschke
openaire   +1 more source

Dental Pathology of the California Sea Lion (Zalophus californianus)

Journal of Comparative Pathology, 2014
Skulls from 1,085 California sea lions (Zalophus californianus) were examined macroscopically according to defined criteria. The museum specimens, 61.8% male and 37.3% female, were acquired from strandings and varied in age from juvenile to adult. The majority of teeth were available for examination (95.7%); 3.8% of teeth were artefactually absent, 0.4%
N L, Sinai, R H, Dadaian, P H, Kass, F J M, Verstraete   +3 more
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Immobilisation of free-ranging Galapagos sea lions (Zalophus californianus wollebaeki)

Veterinary Record, 1979
Nine free-ranging Galápagos sea lions were immobilised for marking, using a combination of ketamine (3 to 5 mg per kg) and xylazine (0.5 to 1.0 mg per kg). The degree of effect depended largely on the animals' behavioural and physiological state before immobilisation (after parturition, high arousal, subject to aggression, etc.) All nine animals ...
Trillmich, Fritz, Wiesner, H
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Cross-modal transitivity in a California sea lion (Zalophus californianus)

Animal Cognition, 2013
The ability of an experimentally experienced female California sea lion to form transitive relations across sensory modalities was tested using a matching-to-sample procedure. The subject was trained by trial-and-error, using differential reinforcement, to relate an acoustic sample stimulus to one member from each of two previously established visual ...
Kristy L, Lindemann-Biolsi, Colleen, Reichmuth   +1 more
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Hydrodynamic trail following in a California sea lion (Zalophus californianus)

Journal of Comparative Physiology A, 2010
The mystacial vibrissae of pinnipeds constitute a sensory system for active touch and detection of hydrodynamic events. Harbour seals (Phoca vitulina) and California sea lions (Zalophus californianus) can both detect hydrodynamic stimuli caused by a small sphere vibrating in the water (hydrodynamic dipole stimuli). Hydrodynamic trail following has only
Nele, Gläser, Sven, Wieskotten, Christian, Otter, Guido, Dehnhardt, Wolf, Hanke   +4 more
openaire   +2 more sources