| The physiology of overwintering in a turtle that occupies multiple habitats, the common snapping turtle (Chelydra serpentina). | |
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MedLine Citation:
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PMID: 12529844 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Common snapping turtles, Chelydra serpentina (Linnaeus), were submerged in anoxic and normoxic water at 3 degrees C. Periodic blood samples were taken, and PO(2), PCO(2), pH, [Na(+)], [K(+)], [Cl(-)], total Ca, total Mg, [lactate], [glucose], hematocrit, and osmolality were measured; weight gain was determined; and plasma [HCO(3)(-)] was calculated. Submergence in normoxic water caused a decrease in PCO(2) from 10.8 to 6.9 mmHg after 125 d, partially compensating a slight increase in lactate and allowing the turtles to maintain a constant pH. Submergence in anoxic water caused a rapid increase in lactate from 1.8 to 168.1 mmol/L after 100 d. Associated with the increased lactate were decreases in pH from 8.057 to 7.132 and in [HCO(3)(-)] from 51.5 to 4.9 mmol/L and increases in total Ca from 2.0 to 36.6 mmol/L, in total Mg from 1.8 to 12.1 mmol/L, and in [K(+)] from 3.08 to 8.45 mmol/L. We suggest that C. serpentina is tolerant of anoxic submergence and therefore is able to exploit habitats unavailable to some other species in northern latitudes. |
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Authors:
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Scott A Reese; Donald C Jackson; Gordon R Ultsch |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Physiological and biochemical zoology : PBZ Volume: 75 ISSN: 1522-2152 ISO Abbreviation: Physiol. Biochem. Zool. Publication Date: 2002 Sep-Oct |
Date Detail:
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Created Date: 2003-01-16 Completed Date: 2003-06-11 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 100883369 Medline TA: Physiol Biochem Zool Country: United States |
Other Details:
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Languages: eng Pagination: 432-8 Citation Subset: IM |
Affiliation:
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Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, USA. Scott_Reese@Brown.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acid-Base Equilibrium Animals Anoxia / blood Cold Temperature Ecology Environment* Female Hibernation Hydrogen-Ion Concentration Lactic Acid / blood Male Michigan Oxygen / analysis Seasons* Species Specificity Time Factors Turtles / blood, physiology* Water / chemistry Wisconsin |
| Chemical | |
Reg. No./Substance:
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50-21-5/Lactic Acid; 7732-18-5/Water; 7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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