Table 4. Explanatory variables offered to explain effects of perturbing the initial conditions, and whether these were defined specifically for age-structured species groups or for all species groups.

Explanatory variables were analysed using the base model presented in McGregor et al. (2019b).

Variable	Description	All species groups
(1) Informance	Rating of how well informed and how well it performed in the base model
(2) TL	Trophic level	✓
(3) Keystone	Keystone ranking
(4) Response	Responsive ranking
(5) NumL1cons	Number of primary trophic connections	✓
(6) Lifespan	Approximate expected lifespan in years	✓
(7) propAdM	Proportion of adult natural mortality that is estimated to have come from additional (background) mortality
(8) propJuvM	Proportion of juvenile natural mortality that is estimated to have come from additional (background) mortality
(9) B0	Unfished biomass	✓
(10) PropByTopPrey	Proportion of diet made up by the most dominant prey group
(11) Linf	Expected maximum length (cm)
(12) ChaosAlt	Method used to perturb initial conditions (set 1, 2 or 3) and whether fishing was turned on or not	✓