Upper Midwest Environmental Sciences Center

Open River - SAS Output
Fish Reports
tree 2003 Report

Table 4.5

Mean catch-per-unit-effort and (standard error) for fish collected by day electrofishing in Open River of the Upper Mississippi River using stratified random sampling during 2003. The statistics under ALL pertain to unbiased means over all strata sampled by this gear (as indicated by nonmissing entries below and by Table 2.5). See Methods for definitions of catch-per-unit-effort and standard error. Scientific names for the species listed can be found in Table 1.

 

Common name ALL MCBU MCBW SCB
Chestnut lamprey 0.15 0.13 0.25 0.29
  (0.11) (0.13) (0.25) (0.18)
Shortnose gar 2.24 2.25 2.31 2.14
  (0.72) (0.82) (0.99) (0.86)
Bowfin 0.00   0.13  
  (0.00)   (0.13)  
Goldeye 0.87 1.00    
  (0.44) (0.50)    
Mooneye 0.22 0.25    
  (0.14) (0.16)    
Skipjack herring 0.55 0.63 0.25  
  (0.33) (0.38) (0.16)  
Gizzard shad 16.19 13.25 60.81 34.14
  (6.09) (6.54) (42.41) (17.86)
Threadfin shad 0.00   0.13  
  (0.00)   (0.13)  
Grass carp 0.00   0.25  
  (0.00)   (0.16)  
Red shiner 0.03     0.29
  (0.03)     (0.29)
Common carp 6.81 6.13 8.75 11.71
  (1.77) (1.89) (2.99) (5.33)
Silver carp 0.04   0.13 0.29
  (0.02)   (0.13) (0.18)
Emerald shiner 0.59 0.25 3.44 2.86
  (0.27) (0.16) (2.20) (1.96)
River shiner 0.11 0.13    
  (0.11) (0.13)    
Silverband shiner 0.11 0.13    
  (0.11) (0.13)    
Channel shiner 0.17     1.43
  (0.11)     (0.92)
Pugnose minnow 1.31 1.50    
  (1.31) (1.50)    
Bullhead minnow 0.02     0.14
  (0.02)     (0.14)
River carpsucker 0.66 0.50 0.63 1.86
  (0.26) (0.27) (0.42) (1.06)
Blue sucker 0.01   0.56  
  (0.00)   (0.29)  
Smallmouth buffalo 0.60 0.63 0.63 0.43
  (0.28) (0.32) (0.32) (0.20)
Bigmouth buffalo 0.71 0.50 0.13 2.29
  (0.26) (0.27) (0.13) (0.92)
Black buffalo 0.99 1.00 0.25 1.00
  (0.37) (0.42) (0.16) (0.49)
Shorthead redhorse 0.11 0.13    
  (0.11) (0.13)    
Blue catfish 0.24 0.25 0.38 0.14
  (0.22) (0.25) (0.26) (0.14)
Channel catfish 0.63 0.50 1.13 1.57
  (0.24) (0.27) (0.44) (0.37)
Freckled madtom 0.04   0.13 0.29
  (0.03)   (0.13) (0.29)
Flathead catfish 1.73 1.88 1.13 0.71
  (1.28) (1.47) (0.55) (0.57)
White bass 1.23 1.13 1.50 2.00
  (0.37) (0.40) (0.42) (1.00)
Striped x white bass 0.02     0.14
  (0.02)     (0.14)
Green sunfish 0.09   0.25 0.71
  (0.08)   (0.16) (0.71)
Warmouth 0.03     0.29
  (0.02)     (0.18)
Orangespotted sunfish 0.05   0.38 0.43
  (0.05)   (0.18) (0.43)
Bluegill 0.43   0.38 3.57
  (0.23)   (0.18) (1.91)
Longear sunfish 0.03     0.29
  (0.02)     (0.18)
Spotted bass 0.01   0.63  
  (0.00)   (0.38)  
Largemouth bass 0.03     0.29
  (0.03)     (0.29)
White crappie 0.03     0.29
  (0.02)     (0.18)
Black crappie 0.03     0.29
  (0.02)     (0.18)
Logperch 0.00   0.13  
  (0.00)   (0.13)  
Freshwater drum 2.30 2.50 1.93 0.86
  (0.86) (0.98) (0.58) (0.55)

 

 

 

Sampling strata:
MCBU - Main channel border, unstructured
MCBW - Main channel border, wing dam
SCB - Side channel border

September 27, 2004
Page Last Modified: April 17, 2018