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  • Stoffwechsel Und Aktivität
  • Open Access

Some relations between the habitat, behaviour, and metabolism on exposure to air of the high-level intertidal cirripedeChthamalus depressus (polli)

  • 1, 2 and
  • 1, 2
Helgoländer wissenschaftliche Meeresuntersuchungen10:BF01626095


    1. The effect of exposure to air on the oxygen uptake, lactic acid production, and quantities of certain phosphoryleated intermediates ofC. depressus has been determined.

    2. On transference to air, aerobic conditions with a reduced metabolic rate are first maintained; access of oxygen and water loss are controlled by the opercular micropyle.

    3. Dehydration stresses then lead to occlusion of the mantle cavity and subsequent anaerobiosis.

    4. Starvation results in a lower metabolic rate, aerobic or anaerobic, and a reduced demand for substrates now mobilized from reserves.

    5. The reduced demand is also related to the amount of dehydration and the latter is so adjusted to allow viability over a long period.

    6. Eventually toxic products kill the animal.


    • Dehydration
    • Lactic Acid
    • Metabolic Rate
    • Oxygen Uptake
    • Acid Production