Parameters used to illustrate the application of the estimator for Cy in Eq (9).

k, l∞ and l0 and d are parameters of the von Bertalanffy growth function taken from [28] for pink cusk-eel (both stocks) and from [27] for southern hake. β is the length-at-weight scaling parameter, A is assimilation rate estimated from daily rations and Py(a) is the proportion of individuals at age a in time y taken from stock assessment outputs.