DCWA

Click on the following link to go to a report on curly leaf pondweed in local waters by Muskegon Community College student researcher Emily Buffum.

copy35_Note on lake levels for DLROA
copy35_Note on lake levels for DLROA
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Twenty-plus years of monitoring data reflect little change in trophic status

Duck L. TSI history
Duck L. TSI history
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The Trophic Status Index reflects a lake's overall productivity---it's capacity for supporting biomass.  The chart demonstrates that  Duck Lake has remained mesotrophic (moderately productive) ever since measurements began in the early 1980s.  


The lake has proved resilient despite increased use and spreading development within the watershed, without the need for significant management actions.

Continued monitoring will help determine if the lake is remaining in desirable balance.

Duck Lake's aquatic plant community

Duck L macrophyte chart v2
Duck L macrophyte chart v2
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The chart above shows the results of a survey the DCWA conducted of Duck Lake's aquatic plants in the summer of 2012.  The survey revealed that the plant community is diverse and abundant.  The previous dominance of Eurasian water milfoil at many locations has been reversed since the introduction of the water milfoil weevil, an initiative proposed by DCWA founding member Tom Hamilton.  Eurasian water milfoil is now only a minor component of the community.  The DCWA  conducts an annual Exotic Plant Watch to provide early warning of potential introductions of new invasive species.