Zebra Mussel Counts at three location in Geneva Lake, Walworth County, WI 2008
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies 6/20/08 10/28/08 130 28,924 222.5 65,174.0
Hillside Rd. 6/20/08 10/28/08 130 240,362 1,848.9 541,600.0
Riveria Pier 8/21/08 10/28/08 68 727 10.7 1,638.0
Counts represent settling over the complete summer.
Both tops and bottoms counted.
Source: GLEA

Zebra Mussel Counts at three location in Geneva Lake, Walworth County, WI 2009
June- July
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies 6/5/09 7/24/09 49 2 0.0 9
Hillside Rd. 6/5/09 7/24/09 49 77 1.6 347
Riveria Pier 6/5/09 7/24/09 49 53 1.1 194
July - Aug
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies 7/24/09 8/26/09 33 89,434 2,710.1 89,434
Hillside Rd. 7/24/09 8/26/09 33 159,397 4,830.2 718,328
Riveria Pier 7/24/09 8/26/09 33 41,621 1,261.2 187,566
Aug. - Oct.
Site Date on Date Off # of Days Mussels Mussels/day Mussels/m2
Gordies 8/26/09 10/28/09 63 2,550 40.5 5,746
Hillside Rd. 8/26/09 10/28/09 63 2,656 42.2 5,985
Riveria Pier 8/26/09 10/28/09 63 3,803 60.4 8,569
1-four layed substrate used at each sites.
Counts included top and bottoms of substrates.
Source: GLEA