7804

• UCREFRP Catalog Number: 7804
• Author: Hagan, H. K. and J. E. Banks.
• Title: An Ecological And Limnological Study of the Green River in Dinosaur National Monument.
• USFW Year: 1963.
• USFW - Doc Type: \
• Copyright Material: NO

Air and water temperature cbB.rJf!.e/hour and pH and D.O. change per
4 hours starting J~ 22 at 6:00 p.m. and ending at 6:00 p.m., July 23.
Air \~ter
tempe~ature temperature
880 0
F. 72.0 F.
860 0
F. 72.0 F.
840,. 72.00F.
80' 0
2 F. 71.5 F.
800F. 71.50F.
76~F. 71. O~F.
75 F. 10.5 F.
150F. 10.00F
140F. 10.00F.
140F. 69. 5~.
140F. 6s>.oor.
0680
12 F. .5 F.
78~F. 68.0~F.
16 F. 68.0 F.
160,. 68.50,.
81Ojt. 69.00,.
8~cp. 69.0~.
88OF~ 68.50F~
820,. 69.00,.
Boor. 69.00F.
120.,. 68. SOJ'.
160,. 69.00,.
780,. 69.00F.
78~F. 66. S~F.
78 F. 68.S F.

Time

6:00 p.m.
1:00
8:00
9:00
10: 00
11:00
12: 00 (midnight)
1:00 a.m..
2:00
3:00
4:00
5:00
6:00
7;00
8:00
9:00
10: 00
11: 00
12:00 (noon)
1:00 p.m.
2:00
3:00
4:00
5:00
6:00

pH

D.O.
7.1 p.p.m.

7.5

7.5

7.0 p.p.m.

7.5

7.0 p.p..m.

7.5

7.0 p.p.a.

7.S

7.1 p.p.m.

1.6

1.1 p.p.m.

July 23, 1962
River dropped about 4 inches since last recording (observed at 6:00 p.m.)
weather, unstable, alternate slmShine, clouds and wind.
Constructed and set a minnow trap.

July 24, 1962

River dropped about 1 inch since last recording.
Time: 11:15 a.m.
pH., 7.5. n.o., 7.3 p.g.m. phth., 9 p.p.m. MoO., 165 p.p.m. 0
Hater temperature, 68.5 F. Weather, sunny, calm, Air temperature 85 F.
Minnow traps produced no fish. I caught some bac:ksvimmers and water..
boatmen in a small pool formed in Q. cut ..oft af'ter the river had dropped.
I also collected maY'fl:r1 cadd1sf'ly, cEmself'ly and drae;ontly larvaef'rom
the river itself. Several small young ot the year reds1de shiners were
taken in a small, quiet backwater.

July 25, 1962
River dropped about 2 inches since last recording.
Time: 4:30 p.m. pH, 7.5. D.O., 7.3 p.p.m.. phth., 9 p.p.m.
llater temperature, 69.oop.. M.O., 161 p.p.m.
l1eather, cloudy I windy, spr1nkl1n<<. Air temperature, 14 <>PO.

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