The effect of single step and fluctuating temperature changes on the oxygen consumption of flounders, Platichthys flesus (L.): Lack of temperature adaptation

The standard oxygen consumption of flounders, PLatichthys flesus , adapted for two months to 5 and 15° C was measured during single step and fluctuating temperature changes, A considerable recovery period from handling was required before standard levels were recorded, although no locomotor activity was evident. The Q ₁₀(adapt) value between 5 and 15° C was 2.0. Q ₁₀ (acute) values were higher. The responses of oxygen consumption to temperature rise conform to Type I11 metabolic compensation (Precht, 1958). No compensatory response was evident at lower temperatures. An alternative explanation of the results in terms ofexcitement metabolism is suggested.