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Friday, November 17, 2000
Midline Transect
Location: Yanayaquillo
Platform: Mango
Position Start: s04°40'808 w074°25'347
Position End: s04°40'808 w074°25'347
Water Level: rising
Start time: 7:26 Finish time: 9:56
B = boto dolphins, T = tucuxi dolphins, U = unidentified
Total number of botos = 15
Total number of tucuxi = 2
Total number of unidentified = 0
Total number of dolphins =17
See Data Table Below
Temperature in Celcius, Clarity, Depth and Width in Meters
| Time |
Position |
Species and Number |
pH |
Temp Surface |
Temp Depth |
Clarity |
Water Depth |
River Width |
Comments |
| 7:26 |
s04°40'808 w074°25'347 |
10B 2T |
|
|
|
|
|
|
by mouth, one baby B |
| 7:47 |
s04°40'685 w074°26'442 |
2B |
|
|
|
|
|
|
mouth of tributary |
| 8:00 |
s04°41'025 w074°26'548 |
|
|
|
|
|
|
|
stop propellor to check, boto appeared one minute
later |
| 8:04 |
s04°41'025 w074°26'548 |
1 B |
|
|
|
|
|
|
resume |
| 8:33 |
s04°41'565 w074°26'687 |
0 |
7 |
26.7 |
27.8 |
0.8 |
1.2 |
10-12 |
turn around due to down tree |
| 8:48 |
s04°41'447 w074°26'733 |
0 |
7 |
27.2 |
27.8 |
0.43 |
1.5 |
15 |
|
| 8:55 |
s04°41'304 w074°26'649 |
0 |
6.5 |
27.8 |
27.9 |
0.45 |
4.1 |
15 |
|
| 9:02 |
s04°41'257 w074°26'499
|
0 |
7 |
27.2 |
27.9 |
0.47 |
3.7 |
15-20 |
|
| 9:10 |
s04°41'067 w074°26'551 |
0 |
7 |
27.0 |
28.0 |
0.44 |
3.9 |
12 |
|
| 9:20 |
s04°40'882 w074°26'510 |
0 |
7 |
27.1 |
28.0 |
0.42 |
4.0 |
20 |
fish dying around boat |
| 9:32 |
s04°40'882 w074°26'510 |
0 |
7 |
27.1 |
28.0 |
0.49 |
5.7 |
18 |
|
| 9:37 |
s04°40'710 w074°26'250 |
2 B |
|
|
|
|
6.0 |
25 |
in tributarity |
| 9:41 |
s04°40'701 w074°26'094 |
0 |
7 |
27.2 |
27.9 |
0.5 |
6.2 |
23 |
|
| 9:47 |
s04°40'706 w074°25'889 |
2 B |
|
26.2 |
27.9 |
0.5 |
6.1 |
18 |
same dolphins as the beginning |
| 9:56 |
s04°40'804 w074°25'362 |
10B |
|
26.9 |
28 |
.47 |
5.8 |
25 |
same dolphins as the beginning |
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