Fish growth trajectories

Choose a stream and an individual fish to compare observed September length-at-age points with the growth trajectory predicted by the best von Bertalanffy (vB) growth model.

Best model: von Bertalanffy growth model, L_t = L_∞(1 - e^-k(t-t₀)), with individual growth trajectories (estimated as random effects), L_∞ varying by species, and k and t₀ varying by population.