Results 151 to 160 of about 7,119 (220)
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Behavioral Reproductive Effort of Nursing Harp Seals, Phoca groenlandica
Journal of Mammalogy, 1987The behavior of harp seal mother-pup pairs was examined during the nursing periods from 1976 to 1982. Quantitative behavioral data (1978–1982) indicated that behavioral reproductive effort did not vary with maternal age. In all maternal age groups, most births occurred on 2 days in early March.
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EFFECTS OF HANDLING STRESS ON PLASMA ENZYMES IN HARP SEALS, Phoca groenlandica
Journal of Wildlife Diseases, 1979Three harp seal pups, Phoca groenlandica, were captured on the ice of the Gulf of St. Lawrence, and subjected to 3 h of transportation and handling stress. The activities of creatine kinase (CK), aspartate aminotransferase (AspAT), aldolase, alanine aminotransferase, gamma glutamyl transpeptidase, and leucine aminopeptidase were determined in serial ...
D J, St Aubin, T P, Austin, J R, Geraci
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Polycyclic aromatic hydrocarbons in harp seals (Phoca groenlandica) from the Northwest Atlantic
Archives of Environmental Contamination and Toxicology, 1991There is virtually no information available on concentrations of polycyclic aromatic hydrocarbons (PAH) in seals from any of the world's oceans. The largest harp seal population in the world is found in Canadian waters of the Northwest Atlantic. Samples of muscle tissue obtained from twenty eight harp seals ranging in age from foetuses to animals 22 ...
J, Hellou +4 more
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Immobilization of harp seals, Phoca groenlandica, by intravenous injection of ketamine
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1977Abstract 1. Ketamine hydrochloride was used intravenously for immobilization of young harp seals, Phoca groenlandica. 2. Induction and recovery were very rapid, with good control of dose strength over duration and degree of immobilization. 3. An effective range of 0.5–7.5 mg/kg total body weight is suggested.
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PHOCINE DISTEMPER VIRUS INFECTION IN HARP SEALS (PHOCA GROENLANDICA)
Marine Mammal Science, 1992AbstractAntibodies against phocine distemper virus were found in liver and serum specimens of harp seals from the Barents Sea and north of Jan Mayen (West Ice) in 1987 and 1989. By immunoperoxidase testing, antibodies against phocine distemper virus could be demonstrated in 34 of 74 liver specimens (46%) from 1987 and in 44 of 126 liver specimens (35%)
Nina Hedlund Markussen, Per Have
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Fetal growth of Northwest Atlantic harp seals, Phoca groenlandica
Canadian Journal of Zoology, 1989Reproductive organs, fetuses, and newborn pups of Northwest Atlantic harp seals (Phoca groenlandica) were collected from 1977 to 1984. These data were used to describe development and fetal growth in terms of biomass and energy, and to estimate the timing of gestational events. The mean pupping date in the Gulf of St. Lawrence was March 2.
R. E. A. Stewart +3 more
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In Vivo Calcification of Glutaraldehyde-Fixed Cardiac Valve and Pericardium of Phoca groenlandica
ASAIO Journal, 2011Calcification remains the main reason for failure of bioprosthetic valves. The aim of this study was to evaluate the in vivo calcification response of a new bioprosthetic valve, derived from cardiac tissue of Phoca groenlandica. Aortic and pulmonary leaflets, bovine, and Phoca groenlandica pericardia were fixed in buffered glutaraldehyde solution ...
E Andreas, Agathos +4 more
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Effects of experimental vitamin E deprivation in the harp seal, Phoca groenlandica
Canadian Journal of Zoology, 1978Captive harp seals, Phoca groenlandica, were fed a diet of herring with no vitamin E supplement for 18 months and were examined for abnormalities which might be attributable to a lack of the vitamin. Vitamin deficiency was based on clinical, physiological, and biochemical parameters.
F R, Engelhardt, J R, Geraci
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Calcium and phosphorus balance in juvenile harp seals (Phoca groenlandica)
Canadian Journal of Zoology, 1984Calcium and phosphorus balances were determined for juvenile harp seals fed two diets of Atlantic herring (diet 1: 0.8% Ca, 1.3% P; diet 2: 1.3% Ca, 1.6% P). The effects of three levels of intake and of feeding frequency were investigated. Calcium excretion (percent of intake) occurred mainly through the faeces (90% versus 2% in the urine). Phosphorus
K. M. Keiver +3 more
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DIGESTIBILITY OF CRUSTACEANS and CAPELIN IN HARP SEALS (PHOCA GROENLANDICA)
Marine Mammal Science, 1994AbstractGross energy intake (GEI), apparent digestible efficiency (%DE), and body‐mass change were studied both in recently weaned and in subadult harp seals fed capelin (Mallotus villosus) and crustaceans (Parathemisto libellula and Thysanoessa sp.) ad lib.
P.‐E. Mårtensson +2 more
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