Results 161 to 170 of about 12,180 (220)

Body composition of harp seals

Canadian Journal of Zoology, 1994
Using chemical analysis we measured the composition of 26 harp seals (Phoca groenlandica) representing both sexes, aged between 3 months and 30 years, and encompassing a wide range of body conditions. Predictive relationships between total body water and total body fat contents, total body protein content, and gross energy were calculated.
Rosemary Gales, Deane Renouf, Elizabeth Noseworthy   +2 more
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ANESTHESIA OF THE HARP SEAL

Journal of Wildlife Diseases, 1972
The harp seal (Pagophilus groenlandicus) was anesthetized with halothane following induction with halothane/nitrous oxide or thiopental sodium. Halothane concentrations of 0.75 - 1.5% were required for surgical anesthesia. The depth of anesthesia was best assessed by heart rate, muscle relaxation and the presence or absence of shivering.
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Radiative surface temperatures of harp seals

Comparative Biochemistry and Physiology Part A: Physiology, 1978
Abstract 1. 1. Ambient air temperature rather than wind speed or heat flow exerted the greatest effect on radiative heat loss from harp seal pup fur. 2. 2. Fur conductance was higher when calculated using radiative temperature rather than air temperature as representative of ambient temperatures. 3. ]3.
N.A Øritsland, D.M Lavigne, K Ronald
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Pagophilus groenlandicus (Harp seal)

1973
The karyotypes are gifts of Dr. U. Amason, Lund, Sweden, and are prepared from solid tissue culture by the orcein squash method. The male comes from the St. Lawrence estuary, New found land, Canada, the female, from Kulusuk, Greenland. The X chromosomes of the female were identified by radioautography.
T. C. Hsu, Kurt Benirschke
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Mineral constituents of harp seal milk

Canadian Journal of Zoology, 1984
Milk samples were collected from stomachs of 20 harp seal pups (Phoca groenlandica) in the Gulf of St. Lawrence. Milk was analysed for ash content, 14 minerals, and for changes in mineral composition associated with maternal age and stage of lactation.
B. E. Webb, R. E. A. Stewart, D. M. Lavigne   +2 more
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Methylmercury poisoning in the harp seal (Pagophilus groenlandicus)

Science of The Total Environment, 1977
Hematological and blood chemistry values were examined in harp seals (Pagophilus groenlandicus) exposed to daily oral dosages of methylmercuric chloride (MMC). Two seals, exposed to 0.25 mg MMC/kg body weight/day for 60 and 90 days, respectively, did not show abnormal blood values.
K, Ronald, S V, Tessaro, J F, Uthe, H C, Freeman, R, Frank   +4 more
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Tocopherol distribution in the harp seal, Pagophilus groenlandicus

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1975
Abstract 1. Tocopherol concentrations in harp seal (Pagophilus groenlandicus) blubber, kidney, liver, heart and skeletal muscle, and plasma were determined by gas-liquid chromatography. 2. Only α-tocopherol was found, with blubber having the highest concentration, 90 μg/g.
F R, Engelhardt, J R, Geraci, B L, Walker   +2 more
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Bile acids from the harp seals, Phoca groenlandica

Comparative Biochemistry and Physiology Part A: Physiology, 1988
1. The bile acids composition of the harp seal, Phoca groenlandica, collected around Newfoundland, Canada, had been examined. 2. 13C n.m.r. spectroscopy of the crude bile extract was superior to t.l.c. analysis in revealing the presence of phocaecholic acid and a taurine moiety in this mixture. 3.
J, Hellou, A, King, I H, Ni
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Pollutants in harp seals (Phoca groenlandica). I. Organochlorines

Science of The Total Environment, 1984
Between 1976 and 1978, 248 harp seals were sampled from 5 locations in the Northwest Atlantic and Arctic for organochlorine (OC) residue analysis in tissue. Blood, kidney, brain, muscle and blubber samples were analysed for PCB, DDT, dieldrin, hexachlorobenzene (HCB), and heptachlor epoxide. Levels were generally greatest in blubber tissue.
K, Ronald, R J, Frank, J L, Dougan, R, Frank, H E, Braun   +4 more
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Remarks on Eskimo Sealing and the Harp Seal Controversy

ARCTIC, 1967
Considers the importance of the seal harvest to Eskimos of Alaska, Canada and Greenland and gives statistics on catches, prices, incomes and costs of modernization of the seal-hunting industry. The catastrophic decline of sealskin prices and buyers boycott beginning 1965 as a result of the controversy over killing methods of harp seal pups has ...
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