The classic stock-recruitment model, showing a sharp decrease in the number of recruits, with increasing spawners. MSY happens with C spawners. Spawners beyond C yield proportionally fewer recruits (returning spawners) (Figure from Walters, et al, 2004)
RickerCurve_Walters_2_tbd
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An other view on stock-recruitment relationships. This one does not predict as dramatic dieback, with higher spawning numbers, but you still get a negative return.(Figure from Walters, et al, 2004)
Beverton-HoltCurve_Walters copy
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An annotated version of the ricker curve, with key points highlighted, and a transitional grey zone showing the spectrum of OE claims. Viewed: 765 times.
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