Summary of Daphnia magna survival (in percent) from water samples collected from the Grassland Bypass Project's monitoring site between 2001 and 2009.  Statistically significant reduced responses (P<0.05) are indicated with an asterisk.  Statistics were computed between all site means and the DMC ambient water     sample.  No statistics were computed between sampling dates.  Results are for seven day test.  (Key at bottom of table.)

 

Date Site Location
B C D F DMC Laboratory Control
10/01 90 100 90 90 70*1 90
11/01 100 89 90 100 80 90
12/01 90 100 90 90 100 100
1/02 100 90 80 100 100 67*1
2/02 100 80 90 90 100 100
3/02 90 100 100 100 90 100
4/02 100 90 100 90 100 100
5/02 80 100 80 100 89 30*1
6/02 100 90 90 90 100 90
7/02 90 100 100 100 100 100
8/02 100 90 100 60* 100 90
9/02 90 100 90 100 90 90
10/02 100 89 90 100 100 89
11/02 60* 100 100 100 100 100
12/02 100 100 100 90 100 90
1/03 90 90 100 90 100 100
2/03 100 100 100 100 100 100
3/03 100 100 90 90 100 90
4/03 90 100 100 100 80 100
5/03 100 100 100 80 100 100
6/03 90 100 90 100 80 90
7/03 100 90 100 90 80 100
8/03 90 100 90 90 90 100
9/03 60* 100 100 90 100 90
10/03 60* 100 100 100 100 100
11/03 90 100 89 100 100 90
12/03 90 90 100 100 90 100
1/04 95 58* 75 93 98 100
2/04 98 93 100 98 100 100
3/04 100 100 90 100 100 100
4/04 100 100 90 90 90 100
5/04 90 100 90 80 90 90
6/04 90 100 100 90 90 100
7/04 100 100 80 90 90 90
8/04 100 88 88 100 90 100
9/04 80 100 90 100 100 90
10/04 100 100 80 100 100 100
11/04 80 70 90 80 100 80
12/04 100 100 90 90 80 100
1/05 100 90 80 100 100 90
2/05 80 100 100 90 100 301
3/05 80 100 90 100 100 90
4/05 90 90 100 90 90 100
5/05 90 90 100 100 90 90
6/05 90 90 80 90 80 100
7/05 90 100 80 90 80 90
8/05 100 100 100 80 80 701
9/05 90 90 100 80 201 301
10/05 30* 80 78 100 90 80
11/05 80 80 100 90 100 100
12/05 100 80 70 70 80 100
1/06 90 90 80 80 80 100
2/06 100 100 100 100 100 501
3/06 100 90 80 80 80 100
4/06 80 90 100 90 100 100
5/06 100 90 100 100 100 100
6/06 90 90 100 90 90 80
7/06 80 100 80 90 80 100
8/06 100 100 90 100 100 100
9/06 100 80 100 100 100 90
10/06 70 80 100 80 90 80
11/06 90 100 100 90 90 100
12/06 90 70 100 90 100 90
1/07 90 90 80 90 90 80
2/07 100 80 90 90 100 90
3/07 100 80 90 100 80 100
4/07 100 90 90 100 90 100
5/07 90 0* 90 90 100 100
6/07 60* 100 80 100 100 100
7/07 80 80 80 90 80 100
8/07 100 70 90 90 80 100
9/07 100 100 100 100 100 80
10/07 90 80 100 90 90 80
11/07 100 100 100 100 100 100
12/07 90 100 100 100 100 80
01/08 70 100 90 100 100 90
02/08 100 90 80 90 100 100
03/08 100 100 90 100 100 90
04/08 100 100 80 100 90 90
05/08 80 70 80 100 90 90
06/08 100 100 100 90 90 90
07/08 100 80 100 100 90 100
08/08 100 70 70 100 100 100
09/08 90 90 100 90 100 100
10/08 90 100 90 90 100 100
11/08 100 100 100 100 90 90
12/08 100 100 100 100 100 90
01/09 90 100 100 100 100 100
02/09 100 80 90 70 90 80
03/09 100 100 100 100 90 90
04/09 100 100 80 90 90 100
05/09 80 100 90 100 100 100
06/09 100 0* 30* 90 100 100
07/09 90 70 100 100 90 90
08/09 100 100 100 100 100 100
09/09 100 100 80 90 100 100
10/09 80 90 100 90 90 100
11/09 90 80 90 90 701 701
12/09 90 90 90 100 100 80
01/10 100 90 90 100 90 100
02/10 90 90 90 100 100 90
03/10 90 100 90 80 90 90
04/10 70 90 90 80 401 80
05/10 80 70 100 100 90 80
06/10 100 100 100 90 90 100
07/10 90 100 90 90 100 100
08/10 100 100 100 100 90 501
09/10 100 100 90 100 87.5 90
10/10 80 100 90 100 100 100
11/10 90 90 100 80 100 80
12/10 90 80 70 80 90 80
01/11 100 90 90 100 90 90
02/11 90 90 100 90 100 90
03/11 90 80 90 80 80 90
04/11 100 100 80 100 100 100
05/11 70 80 70 60 101 80
06/11 100 100 100 80 90 90
07/11 90 80 100 90 100 100
08/11 90 90 90 100 90 90
09/11 100 90 70 100 90 90
10/11 90 60 100 90 100 100
11/11 100 100 100 100 100 100
12/11 90 80 80 70 80 90
01/12 90 100 100 90 100 100
02/12 100 90 100 90 100 100
03/12 100 100 80 80 90 90
04/12 100 80 90 100 100 90
05/12 90 90 80 90 100 100
06/12 90 80 90 90 100 100
07/12 90 20* 40* 100 100 100
08/12 40* 100 100 100 100 100
09/12 90 100 90 80 90 100
11/12 80 90 100 90 90 100
03/13 90 100 90 100 100 100

Key
NT =Not tested
"-" = Future sample
DMC=Delta Mendota
"*" = Statistically significant                                                                                                                     
"**" = Fungal growth observed on test water

Footnotes
1.  DMC/Lab Cl water failed to meet the survival (>80%) acceptability criteria.

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