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Why Why do do we we care?<br />
care?<br />
�� �� Conservation & management<br />
�� Needs depend on objectives objectives:<br />
�� Absolute abundance<br />
�� Assess effect of direct and indirect removals<br />
Trends in abundance (Power analyses)<br />
�� Are management measures working? Time?<br />
�� Trends in abundance (Power analyses)<br />
�� Both: minimise uncertainty & take it into<br />
account<br />
�� Do not forget stock structure<br />
�� �� IDEALLY PART OF A MANAGEMENT<br />
PROCEDURE!
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