Table 1.
parameter | description | value (range) |
---|---|---|
n | exponent of consumption; Jobling (1994) | 0.75 (2/3–1) |
β | predator–prey mass ratioa | 100 (10–1000) |
q | exponent of search volume; Andersen & Beyer (2006) | 0.8 (0.62–1) |
A predator–prey mass ratio of 100 has been determined to be appropriate for fishes from analysis of stomach data (Ursin 1973) or stable isotopes (Jennings et al. 2002). The range should cover most reasonable estimates.