Upper Midwest Environmental Sciences Center
2003 Report
|
Table 2.6 |
Allocation of fish sampling effort among strata in La Grange Pool of the Illinois River during 2003. Table entries are numbers of successfully completed standardized monitoring collections. |
Sampling period = 1: June 15–July 31
|
Sampling gear
|
BWCS
|
BWCO
|
SCB
|
MCBU
|
MCBW
|
IMPS
|
IMPO
|
TRI
|
TWZ
|
TOTAL
|
| Day electrofishing |
12
|
14
|
12
|
2
|
40
|
|||||
| Fyke net |
10
|
2
|
12
|
|||||||
| Large hoop net |
8
|
8
|
2
|
18
|
||||||
| Small hoop net |
8
|
8
|
2
|
18
|
||||||
| Mini fyke net |
10
|
8
|
8
|
2
|
28
|
|||||
| Trawling |
8
|
8
|
||||||||
| Subtotal |
32
|
0
|
38
|
36
|
0
|
0
|
0
|
0
|
18
|
124
|
Sampling period = 2: August 1–September 14
|
Sampling gear
|
BWCS
|
BWCO
|
SCB
|
MCBU
|
MCBW
|
IMPS
|
IMPO
|
TRI
|
TWZ
|
TOTAL
|
| Day electrofishing |
12
|
14
|
12
|
2
|
40
|
|||||
| Fyke net |
10
|
2
|
12
|
|||||||
| Large hoop net |
8
|
8
|
2
|
18
|
||||||
| Small hoop net |
8
|
8
|
2
|
18
|
||||||
| Mini fyke net |
10
|
8
|
8
|
2
|
28
|
|||||
| Trawling |
8
|
8
|
||||||||
| Subtotal |
32
|
0
|
38
|
36
|
0
|
0
|
0
|
0
|
18
|
124
|
Sampling period = 3: September 15–October 31
|
Sampling gear
|
BWCS
|
BWCO
|
SCB
|
MCBU
|
MCBW
|
IMPS
|
IMPO
|
TRI
|
TWZ
|
TOTAL
|
| Day electrofishing |
13
|
14
|
12
|
2
|
41
|
|||||
| Fyke net |
10
|
2
|
12
|
|||||||
| Large hoop net |
8
|
8
|
2
|
18
|
||||||
| Small hoop net |
8
|
8
|
2
|
18
|
||||||
| Mini fyke net |
10
|
8
|
8
|
2
|
28
|
|||||
| Trawling |
8
|
8
|
||||||||
| Subtotal |
33
|
0
|
38
|
36
|
0
|
0
|
0
|
0
|
18
|
125
|
| Total |
97
|
0
|
114
|
108
|
0
|
0
|
0
|
0
|
54
|
373
|
Sampling strata:
BWCS - Backwater, contiguous, shoreline
BWCO - Backwater, contiguous, offshore
SCB - Side channel border
MCBU - Main channel border, unstructured
MCBW - Main channel border, wing dam
IMPS - Impounded, shoreline
IMPO - Impounded, offshore
TRI - Tributary mouth
TWZ - Tailwater
September 27, 2004
Page Last Modified: April 17, 2018