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Fish Reports

2007 Report

Pool 13, Upper Mississippi River 2007 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 for Pool 13 of the Upper Mississippi River in 2007.

• 200 fish collections were conducted using six gear types (Table 2.3), with 172 from randomly selected sites and 28 from fixed sites.
  
  
• Backwater; main channel border, unstructured; and side channel border strata received the most sampling effort (Table 2.3).
  
  
• In 2007, water levels were lower than normal during most of the field season.  However, higher than normal water levels occurred throughout October and a 2-week spike occurred in mid-September.  Water levels did not affect sample allocations, although 13% of our primary stratified random sites could not be sampled due to site inaccessibility or shallow water (Figure 1.3).
  
  
• 16,056 fish were collected representing 57 species (Table 3.3).
  
  
• The LTRMP species total for Pool 13 before the 2007 season was 86; one new species was collected in the 2007 season, western mosquitofish (Table 3.3).
  
  
• One hundred sixty-seven weed shiners were collected that are listed as endangered in Iowa.  Also six pugnose minnows were collected that are listed species of special concern in Iowa (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, fathead minnow, green sunfish, slenderhead darter, smallmouth bass, and white sucker (Table 3.3).
  
  
• Mean catch-per-unit-effort and standard error for stratified random sampling and fixed-site sampling for each stratum are shown in Pool 13 tables. Length distributions for selected species of fish are shown in Figures 1 to 17.
  
  

  
  

 

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Page Last Modified: April 17, 2018