State Water Resources Research Institute Program

Project ID: 2009ME193B
Title: Impacts of White Perch Introductions on Trophic Dynamics: Paleolimnological Record of Zooplankton Grazing and Nutrient Cycling
Project Type: Research
Start Date: 3/01/2009
End Date: 2/28/2010
Congressional District: 2
Focus Categories: Ecology, Management and Planning, Water Quality
Keywords: Algae, Ecosystems, Eutrophication, Fish Ecology, Lakes, Nutrients, Ponds, Water Quality, Water Quality Management, Zooplankton
Principal Investigator: Peckenham, John
Federal Funds: $ 4,497
Non-Federal Matching Funds: $ 0
Abstract: Impacts from fish introduction on size selective predation and alteration of nutrient cycling will be examined using paleolimnological techniques. This analysis will provide insight into the long-term developments, past conditions, and biological response to fish introduction at the whole lake scale. These results will be compared to a whole-lake biomanipulation project on East Pond; a shallow, mesotrophic lake located in the Belgrade Chain of Lakes in central Maine. The goal of this study is to gain a better understanding of the complex mechanisms by which fish introductions affect plankton dynamics and to assess the applicability of biomanipulation as a management approach for improving water quality.

Progress/Completion Report, 2009, PDF

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