Responses of Mytilus edulis L. to low oxygen tension: acclimation of the rate of oxygen consumption
Bayne, B.L.; Livingstone, D.R. (1977). Responses of Mytilus edulis L. to low oxygen tension: acclimation of the rate of oxygen consumption. J. Comp. Physiol. (B Biochem. Syst. Environ. Physiol.) 114(2): 129-142
In: Journal of comparative physiology. Part B. Biochemical, systemic, and environmental physiology. Springer: Heidelberg; Berlin. ISSN 0174-1578; e-ISSN 1432-136X, more
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| Keywords |
Biological phenomena > Adaptations > Acclimation
Depletion > Oxygen depletion
Environmental effects > Temperature effects
Oxygen consumption
Respiration > Anaerobic respiration
Mytilus edulis Linnaeus, 1758 [WoRMS]
Marine/Coastal |
| Authors | | Top |
- Bayne, B.L.
- Livingstone, D.R.
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| Abstract |
M. edulis acclimated its rates of O2 consumption when maintained at reduced O2 tensions for periods>5 days. Acclimation was complete down to{approx} 55 mm Hg Po2; at slightly lower O2 tensions (51,49 and 43 mm Hg) acclimation was complete in one experiment and partial in 2 others. The capacity to acclimate O2 consumption was not affected by a reduction in ration nor by an increase in temp (10 to 22°C). Mussels that were acclimated to reduced O2 tension (40-80 mm Hg), and then exposed to Po2 <20 mm Hg for 2 or 5 h, had depressed rates of O2 uptake when subsequently "recovered" to 40-80 mm Hg. These results are discussed in the context of biochemical studies of anaerobic metabolism in mussels from the same experiments. |
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