Blood Oxygen Transport in Common Map Turtles during Simulated Hibernation

• Published in: Physiological and biochemical zoology 2004-03, Vol.77 (2), p.232-241
• Main Authors: Maginniss, Leigh A., Ekelund, Summer A., Ultsch, Gordon R.
• Format: Article
• Language: English
• Subjects: Acclimatization; Acclimatization - physiology; Acid-Base Equilibrium - physiology; Animals; Blood; Blood plasma; Cold Temperature; Freshwater; Hematocrit; Hemoglobins; Hemoglobins - metabolism; Hypothermia, Induced; Hypoxia; Immersion; Isoelectric Focusing; Oxygen - blood; Oxygen - metabolism; Phosphates; Seasons; Spectrophotometry; Temperature; Turtles; Turtles - blood; Turtles - physiology; Winter
• ISSN: 1522-2152; 1537-5293
• DOI: 10.1086/381473

We assessed the effects of cold and submergence on blood oxygen transport in common map turtles (Graptemys geo graphica). Winter animals were acclimated for 6–7 wk to one of three conditions at 3°C: air breathing (AB‐3°C), normoxic submergence (NS‐3°C), and hypoxic ( \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $\mathrm{PO}\,_{2}=49$ \end{document} Torr) submergence (HS‐3°C). NS‐3°C turtles exhibited a respiratory alkalosis (pH 8.07; \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $\mathrm{PCO}\,_{2}=7.9$ \end{document} Torr; [lactate \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $] =2.2$ \end{document} mM) relative to AB‐3°C animals (pH 7.89; \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT