EFFECTS OF DREISSENA POLYMORPHA ON THE BENTHIC-LITTORAL MACROINVERTEBRATE COMMUNITY IN GENEVA LAKE, WISCONSIN
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substrate
Zebra Mussel Substrate

 

Zebra Mussel Counts at three location in Geneva Lake, Walworth County, WI 2016
June- July 2016
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies, Fontana 6/21/16 7/20/16 25 13 0.52 29.2
Hillside Rd., Linn 6/21/16 7/20/16 25 11 0.44 34.7
Riveria Pier, Lake Geneva 6/21/16 7/20/16 25 42 1.68 94.5
July - August 2016
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies, Fontana 7/20/16 8/17/16 29 207 7.14 465.6
Hillside Rd., Linn 7/20/16 8/17/16 29 20 0.69 45.0
Riveria Pier, Lake Geneva 7/20/16 8/17/16 29 122 4.21 274.4
August - October 2016
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies, Fontana 8/26/16 10/28/16 63 1683 26.7 3785.0
Hillside Rd., Linn 8/26/16 10/28/16 63 507 8.0 1334.0
Riveria Pier, Lake Geneva 8/26/16 10/28/16 63 325 5.2 731.0
1-four layed substrate used at each sites.
Counts included top and bottoms of substrates.
Source: GLEA