The influence of temperature and wet weight on the oxygen demand of rainbow trout (Salmo gairdneri R.) in fresh waterInfluence de la température et du poids vif sur la demande en oxygène de la truite arc-en-ciel (Salmo gairdneri R.) en eau douce |
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| Authors: | A Muller-Feuga J Petit J.J Sabaut |
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| Affiliation: | 1. E.D.F., Direction de l''Equipement, 3 rue de Messine, 75008 Paris, France;2. I.N.R.A., Laboratoire de Physiologie des Poissons, 78350 Jouy-en-Josas, France;3. G.I.E.E.R.N.A., 33240 Saint-André-de-Cubzac, France |
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| Abstract: | Multiple regression analysis was applied to a series of oxygen demand measurements on rainbow trout. It confirmed the determinant influence of temperature and size of fish under standard feeding conditions. Two types of adjustment of oxygen demand in relation to those two factors were tested, and one of them was choosen in which the temperature is under an exponential form. This allows the introduction of the Q10 concept. The value of Q10 is 3.5 when the water temperature is below 10° C and 1.7 above 12° C. |
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