Respiration rate in relation to body size and oxygen saturation threshold for juveniles sea bass (Dicentrarchus labrax L.) mortality

Abstract

        Respiration rate of juveniles sea bass was measured on 55 individuals with weight of 0.06 to 5.47 g. Respiration rate (Vo₂ in mgO₂ h^-1) at 20°C in relation to body mass is Vo₂=0.888(mass)^0.82. The mortality of juveniles sea bass begin when the oxygen saturation is under 30% at a partial pres­sure of oxygen below 45 mm Hg.