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Record #49166:
Thermal regulation in Weddell seal pups / D.D. Hammond, R. Elsner, D. Denison, C. Farwell, R. Wyburn, W. Hanafee.
Title: | Thermal regulation in Weddell seal pups / D.D. Hammond, R. Elsner, D. Denison, C. Farwell, R. Wyburn, W. Hanafee. |
Author(s): | Hammond, D. D. Elsner, R. Denison, D. Farwell, C. Wyburn, R. Hanafee, W. |
Date: | 1971. |
In: | Antarctic Journal of the United States. (1971.), Vol. 6(4) (1971) |
Abstract: | Four main tasks were completed in the 2nd year's study of thermal regulation in seals. First, the population of the colony was counted daily for 4 weeks, to give age distribution and activities of the mothers and pups. Second, deep body temperatures of several pups were obtained in the field at various ages for periods up to 18 hr at a time to determine and record normal unrestrained body core temperature under natural conditions. Third, pups were measured for oxygen consumption, weight gain, thickness of fat, rate of carbon dioxide production, and deep body temperatures under fixed environmental conditions in a metabolic chamber. Fourth, the effect of immersion in sea water (-1.8°C) upon the deep body temperature of two pups in the first day of life and again 1 week later was observed. Secondary studies included tissue biopsies and histological examinations for determination of brown fat in newborn seals. Circulatory changes during thermal stress in Weddell seals were examined with radiological equipment and evidence found that during combined warming and diving experiments some blood flow was maintained, overriding the usually vigorous diving vasoconstriction. |
Notes: | Antarctic Journal of the United States. Vol. 6(4) :96-97 (1971). |
Keywords: | 59 -- Zoology. 599(26) -- Sea mammals. 591.543.1 -- Animals, influence of temperature. 599.745.3 -- Phocidae. 91(08) -- Expeditions: 1955- US Antarctic Program. H6 -- Zoology: mammals. (*7) -- Antarctic regions. (*881) -- Ross Sea. |
SPRI record no.: | 49166 |
LDR 02244naa#a2200000#a#4500 001 SPRI-49166 005 20240328114837.0 007 ta 008 240328s1971####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-49166 040 ## ‡aUkCU-P‡beng‡eaacr 245 00 ‡aThermal regulation in Weddell seal pups /‡cD.D. Hammond, R. Elsner, D. Denison, C. Farwell, R. Wyburn, W. Hanafee. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1971. 300 ## ‡ap. 96-97 :‡bill. 500 ## ‡aAntarctic Journal of the United States. Vol. 6(4) :96-97 (1971). 520 3# ‡aFour main tasks were completed in the 2nd year's study of thermal regulation in seals. First, the population of the colony was counted daily for 4 weeks, to give age distribution and activities of the mothers and pups. Second, deep body temperatures of several pups were obtained in the field at various ages for periods up to 18 hr at a time to determine and record normal unrestrained body core temperature under natural conditions. Third, pups were measured for oxygen consumption, weight gain, thickness of fat, rate of carbon dioxide production, and deep body temperatures under fixed environmental conditions in a metabolic chamber. Fourth, the effect of immersion in sea water (-1.8°C) upon the deep body temperature of two pups in the first day of life and again 1 week later was observed. Secondary studies included tissue biopsies and histological examinations for determination of brown fat in newborn seals. Circulatory changes during thermal stress in Weddell seals were examined with radiological equipment and evidence found that during combined warming and diving experiments some blood flow was maintained, overriding the usually vigorous diving vasoconstriction. 650 07 ‡a59 -- Zoology.‡2udc 650 07 ‡a599(26) -- Sea mammals.‡2udc 650 07 ‡a591.543.1 -- Animals, influence of temperature.‡2udc 650 07 ‡a599.745.3 -- Phocidae.‡2udc 650 07 ‡a91(08) -- Expeditions: 1955- US Antarctic Program.‡2udc 650 07 ‡aH6 -- Zoology: mammals.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 651 #7 ‡a(*881) -- Ross Sea.‡2udc 700 1# ‡aHammond, D. D. 700 1# ‡aElsner, R. 700 1# ‡aDenison, D. 700 1# ‡aFarwell, C. 700 1# ‡aWyburn, R. 700 1# ‡aHanafee, W. 773 0# ‡7nnas ‡tAntarctic Journal of the United States. ‡gVol. 6(4) (1971) ‡wSPRI-41791 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328