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Fish Reports

2000 Report

Pool 4, Upper Mississippi River 2000 Fish Collection Summary

This report is a bullet summary of the Long Term Resource Monitoring Program's fish collection efforts conducted by the Lake City Field Station on Pool 4, Upper Mississippi River during 2000. Information on changes in fish catch over all years can be obtained from the Graphical Fish Database Browser.

• 377 fish collections were conducted using 10 gear types (Table 2.1).
  
  
• Gear allocations among strata remained consistent for all three sampling periods, except for one fewer minnow fyke net during period 1 (Table 2.1).
  
  
• Water levels did not affect sample allocations (Table 2.1; Figure 1.1).
  
  
• Of the 377 fish collections, 324 were from randomly selected sites. Fifty-three collections were made at fixed sites.
  
  
• Side channel borders, backwater contiguous shoreline, backwater contiguous offshore, and main channel border, unstructured, received the most sampling effort (Table 2.1).
  
  
• 118,789 fish were collected representing 67 species and 3 hybrids (Table 3.1).
  
  
• Historical fish distribution records for the Upper Mississippi River (Pitlo et al. 1995) document 99 fish species from Pool 4.
  
  
• No exotics, threatened, or endangered species were noted (Table 3.1).
  
  
• Mean catch-per-unit-effort and standard error for fish collected by gears using stratified random (Tables 4.1-12.1) and fixed-site sampling (Tables 14.1-21.1) for each stratum are shown.
  
  
• Length distributions for selected species of fish are shown in Figures 2.1 to 19.1.