Results 171 to 180 of about 718 (216)

Systemic Mucormycosis in a Hooded Seal (Cystophora cristata)

Journal of Zoo and Wildlife Medicine, 2011
A 4-yr-old male captive hooded seal (Cystophora cristata), previously diagnosed as hypothyroid, died after a 3-wk period of lethargy and inappetance despite treatment that included intramuscular administration of antibiotics and multivitamins. Gross pathologic findings included extensive muscle necrosis over the left flank, an underlying necrotic iliac
James E F, Barnett, Nicholas J, Davison, Susan M, Thornton, Paul, Riley, Tamara, Cooper, Mark E, Wessels   +5 more
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The Hood of the Hooded Seal, Cystophora cristata Erxl.

Nature, 1958
IT is well known that the male of the hooded seal, Cystophora cristata, can inflate its hood, which is the greatly enlarged skin of the snout. It is also known that the male hooded seal can extrude an assumed pair of fiery red bladders or balloons through his nose.
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Exploitation and conservation of Harp and Hood Seals

Polar Record, 1965
Great improvements have taken place in the last few years in the dressing of hair seal pelts for furs and the market for these furs has diversified and expanded. Consequently, the catching of hair seals of all species has intensified and the stocks of Harp Seals (Pagophilus groenlandicus)and Hood Seals (Cystophora cristata) of the North Atlantic ...
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Panmictic population structure in the hooded seal (Cystophora cristata)

Molecular Ecology, 2007
AbstractTwo putative populations of hooded seals (Cystophora cristata) occur in the North Atlantic. The Greenland Sea population pup and breed on the pack ice near Jan Mayen (‘West Ice’) while the Northwest Atlantic population is thought to pup in the Davis Strait, in the Gulf of St.
D W, Coltman, G, Stenson, M O, Hammill, T, Haug, C S, Davis, T L, Fulton   +5 more
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Hypoxia in freely diving hooded seal, Cystophora cristata

Comparative Biochemistry and Physiology Part A: Physiology, 1976
1. 1. Seals have been found to tolerate low arterial O2-tensions without initiating breathing. 2. 2. The effect of reduced O2 content of the inspiration air on ventilation and diving behaviour was studied in 2 freely diving hooded seals. 3. 3.
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Narcotics in hooded seals (Cystophora cristata): a preliminary report

Canadian Journal of Zoology, 1979
Immobilizing darts containing either of the narcotics fentanyl or etorphine were used on 15 adult hooded seals (Cystophora cristata Erxleben). Of these seals, 13 were successfully tagged. The narcotic antagonist naloxone was administered to all seals.
J C, Haigh, R E, Stewart
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Adrenergic vasomotor responses in nasal mucosa of hooded seals

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1992
In seals respiratory heat and water losses are restricted through nasal heat exchange. The heat exchange efficiency is apparently controlled through adjustments in the nasal mucosal blood flow rate and/or pattern. In this study the adrenergic mechanisms involved in regulation of mucosal blood flow were investigated. The nasal mucosal vasculature of 14
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POSTPARTUM DYNAMICS OF REPRODUCTIVE HORMONES IN GRAY AND HOODED SEALS

Marine Mammal Science, 2005
The hormonal changes associated with lactation typically inhibit ovulation and estrus to prevent concurrent pregnancy and competition for maternal energy resources. However, some animals such as kangaroos and pinnipeds undergo estrus during lactation (Boyd 1991a, Muths and Hinds 1996).
J. E. Mellish, S. J. Iverson
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Observations On Nursing Behaviour of Hooded Seals, Cystophora Cristata

Behaviour, 1992
Abstract This study reports the first quantitative data on nursing behaviour of hooded seals which have a four-day nursing period, the shortest known for any mammal. Twenty mother pup-pairs were observed at a whelping patch off the coast of Newfoundland, Canada during March, 1990.
Elizabeth A. Perry, Garry B. Stenson
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Blood volume in hooded seals: implications for diving capacity

Canadian Journal of Zoology, 2000
Plasma volumes of seven adult hooded seals, Cystophora cristata (two males and five females; body mass (M) range = 110-234 kg), captured on sea ice off east of Greenland during breeding (March-April), ranged between 35 and 54 mL/kg M (median = 46.5 mL/kg M).
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