Metabolic allometry and flow rates
You can use this calculator to estimate metabolic rates and the necessary flow rate (in air or water) for respirometry, based on the maximum tolerable change in oxygen concentration and the size, taxa, and activity of the animal under study.

       The initial popup menu contains some very generalized equations, and also allows you to switch to submenus for specific taxa (arthropods, fish, birds, mammals, etc.).  For most taxa, several different equations are available from different literature sources.  You can also pick an approximate level of activity (resting, moderately active, etc.) -- but be aware that these are estimates based on the allometry of resting metabolism.  The effects of temperature can be included with the Q10 value and body temperature data.


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