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Fisheries and state descriptors
Mark Dickey-Collas ICES secretariat, @Dickey-Collas
State descriptors
Determinig what state we want...
Population condition D1.3Habitat condition (pelagic) D1.6Fish population structure D3.3Normal foodwebs D4
Knowing the levers to pull
Trade off – knowledge of state and actionEc
osy
stem
Sta
te E
lem
en
ts
take actioncheck pressuresreview knowledge
take actioncheck pressuresreview knowledge
Considering state elements
What should we do to define GES when pressure state relationships are less clear?
How does society choose to aim for a preferred ecosystem state?
Can we afford to wait for better scienceto inform our decisions?
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