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biomass of omnivore/obligates planktivore species, which are often found in degraded habitats (Vanni et al. 2005).

Hurricane effects on Lake Okeechobee’s littoral fish community were likely magnified because of hydrologic modifications (i.e., Herbert Hoover levee and dike system) that held water levels within the levee during and after hurricanes. Prior to levee construction, connected

wetlands would have provided for wind and seiche effects (Havens

surface 2005).

area expansion during storm events and attenuated Hydrologic modifications to Lake Okeechobee’s

watershed have also created trade-offs among potential estuaries, recreational users, and other water needs.

management

actions

that

will

influence

References

Benson, B.J., and J.J. Magnuson. 1992. Spatial heterogeneity of littoral fish assemblages in lakes: relation to species diversity and habitat structure. Canadian Journal of Fisheries and Aquatic Sciences. 49: 1493-1500. Havens, K. E. 2005. Lake Okeechobee: hurricanes and fisheries. LakeLine 25:25-28. Vanni, M. J., K. K. Arend, M. T. Bremigan, D. B. Bunnell, J. E. Garvey, M. J. Gonzales, W. H. Renwrick, P. A. Sorrano, and R. A. Stein. 2005. Linking landscapes and food webs: effects of omnivorous fish and watersheds on reservoir ecosystems. Bioscience 55:155- 167.

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NOTES

Session 3 – Page 3

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