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Fish Reports

2002 Report

Pool 13, Upper Mississippi River 2002 Fish Collection Summary

This report is a bullet summary of the Long Term Resource Monitoring Program's (LTRMP) fish collection efforts conducted by the Bellevue Field Station on Pool 13, Upper Mississippi River during 2002. Information on changes in fish catch over all years can be obtained from the Graphical Fish Database Browser.

• 300 fish collections were conducted using six gear types (Table 2.3).
  
  
• Water levels did not affect sample allocations (Table 2.3; Figure 1.3).
  
  
• Of the 300 fish collections, 252 were from randomly selected sites. Forty-eight collections were made at fixed sites.
  
  
• Backwater; main channel border, unstructured; and side channel border strata received the most sampling effort (Table 2.3).
  
  
• 36,750 fish were collected representing 59 species and 1 hybrid (Table 3.3). This total includes 12 unidentified buffalo (Ictiobus sp.) less than 150 mm long and 6 unidentified redhorse (Moxostoma sp.)
  
  
• The LTRMP species total for Pool 13 before the 2002 season was 85; no new species were collected in the 2002 season (Table 3.3).
  
  
• No species were collected that are Iowa-listed endangered or threatened species (Table 3.3).
  
  
• 222 pugnose minnows were collected that are an Iowa-listed species of special concern (Table 3.3).
  
  
• Other species that were collected and are noted as uncommon, rare, or probably strays from tributaries (Pitlo et al. 1995) in Pool 13 were black buffalo, blue sucker, bluntnose minnow, creek chub, green sunfish, quillback, slenderhead darter, silver redhorse, smallmouth bass, and white sucker (Table 3.3).
  
  
• Mean catch-per-unit-effort and standard error for fish collected by gears using stratified random (Tables 4.3-11.3) and fixed-site sampling (Tables 17.3-21.3) for each stratum are shown.
  
  
• Length distributions for selected species of fish are shown in Figures 2.3 to19.3.