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Packer et al. 2009, Fryxell et al. 2010
Annual rate of change in abundance
An
nu
al ra
te o
f ch
an
ge
in
qu
ota
Decrease0
Incre
ase
De
cre
ase
0 Increase
Increasing probability of
overexploitation
Increasing probability of
poor economic/social
outcomes
Photo credit: Allan Debertin
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