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Aquatic Plants in Bass, Mud and Norrie Lakes Marathon County

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Aquatic Plants in Bass, Mud and Norrie Lakes Marathon County Aquatic Plants in Bass, Mud and Norrie Lakes Marathon County September 10, 2014 Nancy Turyk, Water Resource Scientist 2012 BASS LAKE • Survey conducted by UWSP July 30, 2012 • WDNR point‐intercept method • Visited 203 sites; 200 sites were vegetated MUD LAKE • Survey conducted by UWSP August 21, 2012 • WDNR point‐intercept method • Visited 193 sites; 171 sites were vegetated NORRIE LAKE • Survey conducted by UWSP June 1, 2012 • WDNR point‐intercept method • Visited 121 sites; 61 sites were vegetated Bass Lake (2012 Survey) 20 Aquatic Plant Species 5 very high quality species Coefficient of Conservatism Common Name Scientific Name Value (C Value) Emergent Species common arrowhead Sagittaria latifolia 3 pickerelweed Pontederia cordata 8 three‐way sedge Dulichium arundinaceum 9 creeping spikerush Eleocharis palustris 6 softstem bulrush Schoenoplectus subterminalis bur‐reed Sparganium, spp. purple loosestrife Lythrum salicaria 0 reed canary grass Phalaris arundinacea 0 Floating Leaf Species watershield Brasenia schreberi 6 spatterdock Nuphar variegata 6 white water lily Nymphaea odorata 6 floating leaf pondweed Potamogeton natans 5 Oakes’ pondweed Potamogeton oakesianus 10 Submergent Species pipewort Eriocaulon aquaticum 9 brown fruited rush Juncus pelocarpus 8 dwarf watermilfoil Myriophyllum tenellum 10 water‐thread pondweed* Potamogeton diversifolius 8 twin‐stemmed bladderwort Utricularia geminiscapa 9 large purple bladderwort* Utricularia purpurea 9 muskgrass Chara 7 aquatic moss Floristic Quality Indices for Marathon Bass Lake –High C value County Lakes 35.0 30.0 (FQI) Oakes’ pondweed C=10 25.0 Dwarf watermilfoil C=10 20.0 Index 15.0 Three‐way sedge C=9 10.0 Quality 5.0 Twin‐stemmed bladderwort C=9 0.0 Species of Special Concern Floristic Large purple bladderwort C=9 Water thread pondweed C = 8 Dwarf watermilfoil Oakes’ pondweed Large Purple Bladderwort Bass Lake most abundant species (93% of vegetated sites) Mud Lake most abundant species (81% of vegetated sites) • C Value = 9 • Species of Special Concern Mud Lake (2012 Survey) 19 Aquatic Plant Species 5 very high quality species Coefficient of Common Name Scientific Name Conservatism Value (C Value) Emergent Species three‐way sedge Dulichium arundinaceum 9 creeping spikerush Eleocharis palustris 6 common arrowhead Sagittaria latifolia 3 pickerelweed Pontederia cordata 8 Floating Leaf Species watershield Brasenia schreberi 6 spatterdock Nuphar variegata 6 white water lily Nymphaea odorata 6 Submergent Species needle spikerush Eleocharis acicularis 5 pipewort Eriocaulon aquaticum 9 water star‐grass Heteranthera dubia 6 spiny spored quillwort Isoetes echinospora 8 brown fruited rush Juncus pelocarpus f. submersus 8 Nitella Nitella spp. 7 waterthread pondweed* Potamogeton diversifolius 8 ribbon leaved pondweed Potamogeton epihydrus 8 water bulrush Schoenoplectus subterminalis 9 large purple bladderwort* Utricularia purpurea 9 small purple bladderwort* Utricularia resupinata 9 common bladderwort Utricularia vulgaris 7 Floristic Quality Indices for Marathon Mud Lake –High C value County Lakes Three‐way sedge C=9 35.0 30.0 (FQI) Pipewort C=9 25.0 20.0 Index Water bulrush C=9 15.0 10.0 Quality 5.0 Species of Special Concern 0.0 Large purple bladderwort C=9 Floristic Small purple bladderwort C=9 Waterthread pondweed C=8 Water bulrush Robert Freckmann Three‐way sedge Pipewort Norrie Lake (2012 Survey) 26 Aquatic Plant Species 5 very high quality species Common Name Scientific Name Coefficient of Conservatism Value (C value) Emergent Species creeping spikerush Eleocharis palustris 6 northern blue‐flag Iris versicolor common arrowhead Sagittaria latifolia 3 pickerelweed Pontederia cordata 8 American bur‐reed Sparganium americanum 8 common bur‐reed Sparganium eurycarpum 5 broad‐leaved cattail Typha latifolia 1 Floating Leaf Species watershield Brasenia schreberi 6 spatterdock Nuphar variegata 6 white water lily Nymphaea odorata 6 floating‐leaf pondweed Potamogeton natans 5 Oakes pondweed Potamogeton oakesianus 10 Submergent Species muskgrass Chara 7 waterwort Elatine minima 9 spiny spored quillwort Isoetes echinospora 8 brown fruited rush Juncus pelocarpus f. submersus 8 Farwells water‐milfoil Myriophyllum farwellii* 8 dwarf water‐milfoil Myriophyllum tenellum 10 waterthread pondweed Potamogeton diversifolius* 8 ribbon leaved pondweed Potamogeton epihydrus 8 water bulrush Schoenoplectus subterminalis 9 twin‐stemmed bladderwort Utricularia geminiscapa 9 large purple bladderwort Utricularia purpurea* 9 common bladderwort Utricularia vulgaris 7 Watershield Norrie Lake most abundant species (62% of vegetated sites) • C Value = 6 Floristic Quality Indices for Marathon Norrie Lake –High C value County Lakes Oakes’ pondweed C=10 35.0 30.0 (FQI) Dwarf watermilfoil C=10 25.0 20.0 Index Water bulrush C=9 15.0 Twin‐stemmed bladderwort C=9 10.0 Quality 5.0 0.0 Species of Special Concern Floristic Farwell’s water milfoil C=8 Large purple bladderwort C=9 Waterthread pondweed C=8 Twin‐stemmed bladderwort Water bulrush Recommendations Bass, Mud and Norrie Lakes • Minimize disturbing the lakebed from raking or pulling plants • Learn to identify and monitor for aquatic invasive species • Focus on early detection of aquatic invasive species Acknowledgements Aquatic Plant Surveys Jen McNelly UW‐Stevens Point Students ACKNOWLEDGMENTS Marathon County Concerned Citizens and Property Owners Marathon County Conservation, Planning and Zoning Staff Mayflower Lake District, Pike Lake Sportsman Club, and Wadley Lake Sportsman Club Marathon County Environmental Fund Wisconsin Department of Natural Resources Professionals, Buzz Sorge, Tom Meronek, Scott Provost Wisconsin Department of Natural Resources Lake Protection Grant Program Drs. Bob Bell, Ron Crunkilton, Kristin Floress, Chris Hartleb, Samantha Kaplan, Paul McGinley, Justin Sipiorski UW‐Stevens Point Water and Environmental Analysis Lab Questions?.
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