Table 1.

Blood flows through select major systemic arches of 5°C- and 21°C-acclimated turtles during normoxic and anoxic exposure

Acclimation temperatureConditionVariableBlood flow (ml min−1 kg−1)%sysFactor*
5°CNormoxia sys 11.3±1.4
LAo 3.9±0.434.8±0.92.88±0.07
RAo 4.0±0.736.3±4.2
Lsubcar 1.7±0.414.5±2.2
Anoxia sys 2.68±0.35
LAo 0.95±0.0636.9±3.62.79±0.27
RAo 0.90±0.1433.3±1.3
Lsubcar 0.41±0.0914.9±1.5
21°CNormoxia sys 46.3±2.8
LAo 18.1±2.738.6±3.52.67±0.16
RAo 17.2±1.237.1±1.5
Lsubcar 5.5±0.712.1±1.7
Anoxia sys 15.4±2.6
LAo 5.5±1.134.6±1.92.92±0.16
RAo 5.3±0.536.4±3.7
Lsubcar 2.3±0.514.5±1.1
  • Values are means ± s.e.m. (N=4 at 5°C and 5 at 21°C).

    sys, systemic blood flow; LAo, left aortic arch blood flow; RAo, right aortic arch blood flow; Lsubcar, left subcalvian and left common carotid blood flow.

  • * Multiple of LAo needed to equal sys.