Mean reproduction per surviving female for Daphnia magna in water samples collected from the Grassland bypass Project's (GBP) 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 tests.  (Key at bottom of table.)

Date Site Location
B C D F DMC Laboratory Control
10/01 39.5 39.1 29.8 35.3 21.1 31.7
11/01 27.4 28.2 34.2 33.4 25.4 29.6
12/01 41.3 45.9 43.3 42.4 45.1 36.7
1/02 29.4 29.3 23.6 30.5 30.1 11.9
2/02 42.8* 37.7 42.0 40.6 47.4 32.4
3/02 47.2 47.7 49.8 45.8 54.5 50.2
4/02 56.2 43.4 59.8 49.3 49.5 47.3
5/02 26.4 36.5 30.7 37.2 27.9 2.9*1
6/02 40.0 36.1 43.1 24.3* 45.3 28.6
7/02 28.3 29.7 34.6 29.6 33.1 29.1
8/02 40.8 26.6 34.1 20.4 25.6 22.9
9/02 24.4 28.0 28.7 31.1 23.7 16.6
10/02 40.4 30.2 29.6 27.9 29.9 21.1
11/02 7.9* 30.3 33.5 29.3 18.4 20.3
12/02 22.8 26.3 36.7 29.9 26.7 21.4
1/03 30.1 37.0 38.8 26.3* 38.6 43
2/03 36.1 38.0 32.9 37.0 35.0 28.7
3/03 50.9 43.2 46.6 44.4 44.0 41.5
4/03 38.5 42.0 43.3 34.6 31.1 35.1
5/03 31.7 29.2 34.6 19.0* 30.4 23.7
6/03 28.5 23.0 24.3 29.7 19.5 27.4
7/03 39.9 28.8 46.9 28.2 25.0 26.0
8/03 30.1 33.5 29.0 24.4 33.5 26.7
9/03 25.1 30.1 36.1 31.2 33.0 25.6
10/03 23.3 48.1 52.8 41.5 33.8 23.0
11/03 54.8 40.7 44.3 54.7 45.3 38.1
12/03 59.0 58.7 64.9 73.6 64.2 68.7
1/04 46.8 45.0 40.7 44.5 54.1 41.5
2/04 59.4 59.0 60.7 54.3 60.0 59.0
3/04 59.7 55.3 58.8 58.6 58.4 51.6
4/04 35.5 34.3 35.9 34.6 21.7 15.7
5/04 32.4 29.6 37.5 34.9 30.7 24.7
6/04 25.8 29.8 25.6 16.7 19.0 30.0
7/04 51.3 32.4 48.5 36.2 38.8 34.9
8/04 41.9 41.8 46.1 37.4 32.0 33.9
9/04 49.8 48.0 40.4 38.7 41.8 44.3
10/04 48.10 39.80 29.20* 36.60 47.00 32.10
11/04 37.0 28.3 44.6 41.8 35.9 27.0
12/04 30.80 30.80 32.80 34.40 26.60 31.10
1/05 41.70 38.80 40.20 45.90 47.60 34.70
2/05 15.20 13.60 17.30 8.50 12.20 4.00
3/05 37.40 38.90 42.40 38.80 31.60 44.00
4/05 26.40 35.90 42.30 37.10 30.40 27.00
5/05 39.80 38.60 45.50 36.10 34.10 40.90
6/05 41.80 35.10 36.80 42.50 30.70 31.90
7/05 41.80 49.40 43.10 45.50 39.60 34.00
8/05 29.30 36.10 32.50 29.40 22.10 21.00
9/05 11.39 10.98 11.98 10.81 5.341 7.791
10/05 11.70* 28.30 23.89 25.70 24.50 22.60
11/05 17.80 16.10 16.70 15.70 16.90 17.00
12/05 19.00 17.40 14.90 13.40 19.80 22.40
1/06 32.20 29.60 33.10 24.70 25.30 26.60
2/06 30.70 34.80 34.90 30.80 32.00 13.20
3/06 39.00 33.00 28.20 28.80 31.50 33.90
4/06 43.60 42.70 43.50 39.90 32.70 37.40
5/06 49.20 28.10 27.30 26.40 22.90 18.20
6/06 26.20 25.90 29.90 26.70 20.90 19.10
7/06 35.80 42.30 42.10 35.40 32.70 29.30
8/06 34.70 33.30 23.90* 31.40 36.20 30.80
9/06 25.90 20.10 23.80 26.90 27.60 23.60
10/06 25.90 27.40 30.10 26.30 26.90 19.60
11/06 36.60 49.60 47.00 47.90 38.30 46.20
12/06 28.40 22.50 29.60 31.50 27.80 22.30
1/07 20.50 27.30 23.20 26.00 28.50 21.40
2/07 31.70 32.90 39.40 31.60 28.60 30.50
3/07 35.20 27.10 32.90 28.2* 36.80 30.20
4/07 22.70 21.10 29.00 21.20 21.10 26.20
5/07 38.40 16.00* 33.00 33.30 36.50 30.00
6/07 18.30* 34.90 34.90 32.60 28.20 27.20
7/07 43.10 32.50 34.60 20.90 20.80 36.30
8/07 29.80 26.30 40.70 33.90 25.90 26.30
9/07 19.20* 32.00 31.00 23.80 29.30 19.60
10/07 35.80 31.10 34.40 27.50 24.30 26.20
11/07 49.90 44.00 46.90 41.60 42.50 40.30
12/07 32.20 24.40 32.20 28.70 30.70 23.00
01/08 36.40 47.80 41.50 40.30 48.80 45.20
02/08 35.60 33.60 33.40 35.80 27.70 28.30
03/08 27.40 29.00 29.50 26.20 30.10 19.60
04/08 31.40 31.10 27.50 24.80 33.60 25.80
05/08 22.20 19.60 23.50 33.10 25.70 28.80
06/08 23.40 21.00 29.30 2360 26.60 26.00
07/08 19.10 22.40 23.80 18.40 21.40 24.30
08/08 26.50 15.30* 23.30 30.20 24.10 29.50
09/08 27.30 24.90 36.60 22.30 27.30 23.80
10/08 24.40 28.20 25.60 22.30 24.90 26.30
11/08 57.70 43.00 50.10 41.20 46.60 30.10
12/08 32.60 26.00 26.30 22.60 30.30 21.20
01/09 19.70 22.40 21.00 24.10 19.00 19.30
02/09 24.00 19.10 23.90 19.00 21.90 18.90
03/09 43.90 34.50 41.20 35.60 37.50 27.20
04/09 45.4 52.30 23.10 30.20 30.20 31.60
05/09 22.10 31.80 36.30 29.30 29.90 23.60
06/09 42.90 4.80* 13.60* 35.90 28.20 28.60
07/09 34.20 21.60 38.50 32.10 26.40 22.40
08/09 42.60 40.90 38.50 37.80 30.60 24.70
09/09 34.80 43.30 26.80 25.10 28.70 22.70
10/09 36.70 32.80 42.20 33.50 31.10 28.80
11/09 38.50 21.30 29.10 21.80 16.40 18.60
12/09 30.20 30.70 35.40 35.20 39.70 30.90
01/10 39.70 32.30 44.10 30.70 34.40 33.80
02/10 22.90 22.10 26.20 25.70 23.10 25.40
03/10 23.60 28.40 23.30 19.50 25.00 16.60
04/10 34.80 41.40 39.20 24.10 20.10 28.50
05/10 30.60 45.40 39.30 42.90 33.80 19.40
06/10 23.00 27.20 29.50 24.20 23.10 21.40
07/10 43.60 48.80 46.30 46.60 38.70 38.60
08/10 27.70 31.80 28.40 25.80 26.10 2.601
09/10 35.50 29.80 30.00 28.10 24.30 20.00
10/10 28.10 23.70 30.00 29.20 29.90 25.20
11/10 40.70 27.20 36.30 30.10 31.60 28.80
12/10 31.50 30.50 26.20 33.60 25.6 34.20
01/11 40.80 35.90 37.40 42.70 31.60 38.50
02/11 25.70 26.40 24.40 26.80 25.50 22.10
03/11 53.10 39.10 59.10 41.30 29.80 49.90
04/11 28.60 23.10 25.40 29.90 28.60 29.20
05/11 44.80 36.60 45.70 24.80 22.90 37.90
06/11 66.00 58.00 62.80 38.90* 50.30 42.20
07/11 31.70 43.80 40.90 21.70 30.50 25.30
08/11 38.10 32.80 40.40 31.40 31.00 34.30
09/11 41.30 33.10 37.20 35.00 28.40 29.60
10/11 26.90 13.20* 29.90 20.80 24.20 27.10
11/11 51.90 46.80 48.10 39.30 44.60 27.00
12/11 24.30 32.10 36.70 24.00 28.00 34.10
01/12 34.10 41.40 35.70 29.20 33.90 28.50
02/12 58.00 48.90 63.80 54.90 58.60 52.00
03/12 58.30 49.70 41.80 40.80 45.10 31.50
04/12 35.40 30.00 33.70 27.70 31.40 25.40
05/12 33.00* 39.70 40.20 42.20 47.20 38.90
06/12 41.90 37.70 33.10 29.80 35.70 28.30
07/12 56.30 24.10* 36.40 54.30 46.80 55.80
08/12 10.20* 25.00 26.20 27.30 29.30 24.50
09/12 28.20 26.20 34.60 18.20* 29.70 24.20
11/12 25.70 21.10 23.80 21.60 22.60 22.80
03/13 32.90 28.90 32.70 36.20 34.80 31.70

Key
NT=No sample collected
DMC=Delta Mendota Canal
"*" = Statistically significant

 

Footnotes
1.  DMC/Control water failed to meet the reproduction (> 10 neonates/adult) acceptability criteria.

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