51813_Sturgeon biodioversity an.PDF

that is reduced by 7%,fromF= 0.37 toF= 0.345
(Table 2).
Eventhoughfishing may not be thereason for an
observed decline inabundance ofsturgeon and

is an effectivemeans ofoffsetting the effects on re-

productivepotentialcaused byother,oftenuncon-

trollable mortalitysources,Restrictingfishing mor-

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Acknowledgements

Specialthanks go to the people who sharedtheir

informationduring thepreparation of the manu-

script, especially A. Kahnle, K. Hattala, J. Clugston,

D. Keenlyne, and J. Waldman, toBradMcGowan

V. Birstein, J. DeVore,T. Cochnauer, P. B. Moyle, K.

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