Incoprea Theory
Vol. XXIX · 109

Theory 12/Existing data/Fisheries

Collapse Tracks Recruitment Variance

The claim

Stock collapse probability is set by recruitment variability more than by fishing pressure, because variable recruitment removes the buffer that steady pressure would leave.

01Mechanism

High variance produces years of low recruitment that fishing pressure then compounds.

02Prediction

Collapse should track the coefficient of variation.

03Refutation

Collapse tracking pressure alone would remove variance.