Summary of Fathead Minnow survival (in percent) from water samples collected from the Grassland Bypass Project's monitoring site between 1996 and 2001.  Statistically significant reduced responses (P<0.05) are indicated with an asterisk.  Statistics were computed between all site means and the Delta Mendota Canal (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
10/96 68 83 88 88 93 98
11/96 98 98 95 85 95 93
12/96 98 50* 78* 93 98 100
1/97 95 92 83 90 88 95
2/97 95 90* 95 90 100 48
3/97 95 98 98 93 98 95
4/97 95 100 95 98 88 83
5/97 95 100 95 100 93 100
6/97 93 98 95 93 90 90
7/97 100 93 98 98 100 98
8/97 88 85 95 78 83 98
9/97 98 90 93 85 83 90
10/97 88 88 85 60* 95 98
11/97 85 75* 88 88 98 98
12/97 90 50* 58* 83 88 85
1/98 100 40* 50* 90 90 95
2/98 93 43* 73* 80* 93 93
3/98 95 60* 68* 53* 95 84
4/98 100 95 95 100 85 100
5/98 100 98 98 58 80 100
6/98 88 98 98 65* 98 95
7/98 98 93 100 78 93 100
8/98 88 100 95 95 95 100
9/98 98 93 100 100 100 100
10/98 98 53* 80 85 97 100
11/98 95 55* 55* 45* 90 85
12/98 98 68* 68 80 93 93
1/99 100 88 60* 43* 80 100
2/99 98 65 90 78 481 83
3/99 75 58 88 85 651 100
4/99 93 88 100 83 731 100
5/99 98 90 93 88 501 98
6/99 98 93 100 98 701 100
7/99 93 100 90 93 98 100
8/99 93 100 89 68 98 100
9/99 95 85 93 53 93 98
10/99 100 98 90 70* 98 100
11/99 98 38* 60* 50* 87 95
12/99 100 73* 73* 70* 100 100
1/00 98 33* 48* 85 83 100
2/00 95 85 65* 75* 95 98
3/00 100 100 100 85 93 100
4/00 95 93 95 98 83 100
5/00 93 93 98 100 93 100
6/00 90 85 95 95 88 100
7/00 98 100 90 98 100 100
8/00 100 97 88 80 100 100
9/00 100 100 93 98 98 98
10/00 100 75* 93 100 100 98
11/00 88 15* 23* 63* 95 100
12/00 100 63* 73 88 88 93
1/01 95 85 93 90 100 100
2/01 100 90 93 78 78 100
3/01 100 93 93 90 95 100
4/01 100 100 95 93 95 100
5/01 88 97 90 90 90 100
6/01 88 98 98 98 98 100
7/01 90 93 98 100 93 98
8/01 95 95 98 95 98 98
9/01 98 100 90 100 100 98

 

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

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

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