Stocking piscivores to improve fishing and water clarity: a synthesis of the Lake Mendota biomanipulation project

SUMMARYY 1. A total of 2.7 × 106 walleye fingerlings and 1.7 × 105 northern pike fingerlings were stocked during 1987–99 in eutrophic Lake Mendota. The objectives of the biomanipulation were to improve sport fishing and to increase piscivory to levels that would reduce planktivore biomass, increase...

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Veröffentlicht in:	Freshwater biology 2002-12, Vol.47 (12), p.2410-2424
Hauptverfasser:	Lathrop, R. C., Johnson, B. M., Johnson, T. B., Vogelsang, M. T., Carpenter, S. R., Hrabik, T. R., Kitchell, J. F., Magnuson, J. J., Rudstam, L. G., Stewart, R. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal and plant ecology Animal, plant and microbial ecology Applied ecology Biological and medical sciences biomanipulation Conservation, protection and management of environment and wildlife Daphnia grazing Environmental degradation: ecosystems survey and restoration Esox lucius Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.) Freshwater Fundamental and applied biological sciences. Psychology Lake Mendota piscivore stocking Sander vitreus Sea water ecosystems Synecology trophic cascade
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Zusammenfassung:	SUMMARYY 1. A total of 2.7 × 106 walleye fingerlings and 1.7 × 105 northern pike fingerlings were stocked during 1987–99 in eutrophic Lake Mendota. The objectives of the biomanipulation were to improve sport fishing and to increase piscivory to levels that would reduce planktivore biomass, increase Daphnia grazing and ultimately reduce algal densities in the lake. The combined biomass of the two piscivore species in the lake increased rapidly from
ISSN:	0046-5070 1365-2427
DOI:	10.1046/j.1365-2427.2002.01011.x