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Eutrophication Management and Ecotoxicology
Table of Contents
1 Eutrophication and the Ecosystem .......................................................1
1.1 Background.......................................................................................1
1.2 Eutrophic and Eutrophicated Waters................................................2
1.3 Trophic Cascades in Freshwaters ....................................................5
1.4 Eutrophicated Waters: Disturbed Trophic Cascades .....................13
2 Daphnid Grazing Ecology.....................................................................21
2.1 Daphnids and Their Ecological Role...............................................21
2.2 Daphnid Grazing Effectiveness ¨C
Concept and Measurement ............................................................38
2.3 Modelling Daphnid Grazing Effectiveness......................................49
3 Toxic Reduction of Daphnid Grazing Effectiveness ..........................57
3.1 Daphnid Ecotoxicology...................................................................57
3.2 Observations from Mesocosm Studies ..........................................62
3.3 Daphnid Grazing Effectiveness in Response
to Toxicant Exposure ......................................................................72
4 Field Observations of Daphnid Grazing ..............................................81
4.1 Two Different Lakes in Holland.......................................................81
4.2 The Plankton Dynamics in Lake Geestmerambacht ......................82
4.3 The Plankton Dynamics in Lake Amstelmeer .................................89
4.4 What Can Be Learned from These Lakes?.....................................91
5 New Perspectives for Eutrophication Management..........................97
5.1 A New Dimension in Lake Eutrophication Management ................97
5.2 How to Address Ecotoxicology
in Eutrophication Management.....................................................102
5.3 Epilogue ........................................................................................108
Acknowledgements ........................................................................111
References.....................................................................................113

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