Table 3.

Harvesting parameters

Parameter	Description	Value or range	Unit	Comments on range
Ms	Length at which selectivity equals 50%, as a fraction of the maximum observed length	0.17–0.43	–	Chosen to cover approximately the sizes at 25% through 75% maturation probability across the age ranges examined (e.g., Fig. 1D)
a	Steepness of the size-specific selectivity curve around Ms	0.5–25	–	Chosen to cover a range of shapes of the selectivity curve (e.g., Fig. 2)
bH	Density–dependent component of harvesting	0.01–0.2	–	Chosen to cover a range of harvest regimes not resulting in extinctions
aH	Total allowable catch for Ht=0	50	g	Chosen to minimize the fraction of biomass harvested when bH=0
ϕ	Relative importance managers attach to avoiding harvest-induced evolutionary change	0.1–2	–	Chosen to cover a range of distinct levels importance attached to avoiding harvest-induced evolutionary change