Upper Midwest Environmental Sciences Center

Home About Director's Overview History of Center Employee Directory Map to Center Partners State Field Stations Lake City, Minnesota La Crosse, Wisconsin Bellevue, Iowa Great Rivers, Illinois Open River, Missouri Havana, Illinois Field Station Directory Science Programs Aquatic Ecosystem Health River Ecology Long Term Resource Monitoring Wildlife Ecology Geospatial Sciences and Technology Science Initiatives Science Topics Data and Tools Publications Software Multimedia News

Fish Reports

2000 Report

Pool 13, Upper Mississippi River 2000 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 2000. Information on changes in fish catch over all years can be obtained from the Graphical Fish Database Browser.

• 486 fish collections were conducted using 10 gear types (Table 2.3).
  
  
• Water levels did not affect sample allocations (Table 2.3; Figure 1.3).
  
  
• Of the 486 fish collections, 438 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).
  
  
• 89,468 fish were collected representing 69 species and 7 hybrids (Table 3.3).
  
  
• The LTRMP species total for Pool 13 before the 2000 season was 80; four new species were collected: central mudminnow (18), central stoneroller (1), grass pickerel (1) and spotted gar (2). These were the first documented occurrences of spotted gar in the state of Iowa (Table 3.3).
  
  
• Two bluntnose darters were collected that are an Iowa-listed endangered species (Table 3.3).
  
  
• Two Iowa-listed threatened species were collected—a grass pickerel and 22 western sand darters (Table 3.3).
  
  
• 95 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 the Mississippi silvery minnow, sand shiner, suckermouth minnow, bluntnose minnow, fathead minnow, quillback, black buffalo, silver redhorse, stonecat, centralmudminnow, green sunfish, smallmouth bass, and slenderhead darter (Table 3.3).
  
  
• Mean catch-per-unit-effort and standard error for fish collected by gears using stratified random (Tables 4.3-12.3) and fixed-site sampling (Tables 15.3-21.3) for each stratum are shown.
  
  
• Length distributions for selected species of fish are shown in Figures 2.3 to 19.3.

---

Page Last Modified: April 17, 2018