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Fish Reports

tree 2001 Report

Table 2.4

Allocation of fish sampling effort among strata in Pool 26 of the Upper Mississippi River during 2001. 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 6   6 8 2 4       26
Fyke net 4         4       8
Large hoop net     7 10 2         19
Small hoop net     7 10 2         19
Mini fyke net 4   5 2 2 2       15
Night electrofishing                 2 2
Seine     12 16           28
Trawling                 4 4
Tandem fyke net   2         2     4
Tandem mini fyke net   2         2     4
Subtotal
 14 4 37 46 8 10 4 0 6 129

Sampling period = 2: August 1–September 14

Sampling gear BWCS BWCO SCB MCBU MCBW IMPS IMPO TRI TWZ TOTAL
Day electrofishing 6   6 8 2 4       26
Fyke net 4         4       8
Large hoop net     7 10 2         19
Small hoop net     7 10 2         19
Mini fyke net 4   5 2   2       13
Night electrofishing                 2 2
Seine     12 16           28
Trawling                 4 4
Tandem fyke net   2         2     4
Tandem mini fyke net   2         2     4
Subtotal
 14 4 37 46 6 10 4 0 6 127

Sampling period = 3: September 15–October 31

Sampling gear BWCS BWCO SCB MCBU MCBW IMPS IMPO TRI TWZ TOTAL
Day electrofishing 5   6 8 2 4       25
Fyke net 4         4       8
Large hoop net     6 10 2         18
Small hoop net     7 10 2         19
Mini fyke net 4   5 2 2 2       15
Night electrofishing                 2 2
Seine     12
16
           28
Trawling                 4 4
Tandem fyke net   2         2     4
Tandem mini fyke net   2         2     4
Subtotal
 13 4 36 46 8 10 4 0 6 127
  Total
 41 12 110 138 22 30 12 0 18 383

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

 

August 26, 2004

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