Upper Midwest Environmental Sciences Center
Open River, 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 Open River Field Station on the Open River, Upper Mississippi River during 2000. Information on changes in fish catch over all years can be obtained from the Graphical Fish Database Browser.
- 315 fish collections were conducted using eight gear types (Table
2.5).
- Gear allocations among strata varied for all three sampling periods
because of low and high water extremes (Table
2.5; Figure 1.5).
- Of the 315 fish collections, 261 were from randomly selected sites. Fifty-four
collections were made at fixed sites.
- Side channel border; main channel border, unstructured; and main channel
border, and wing dam strata received the most sampling effort (Table
2.5).
- 11,533 fish were collected representing 61 species (Table
3.5).
- Historically, 129 fish species have been collected from the Open
River (Pitlo et al. 1995).
- The LTRMP species total for the Open River before the 2000 season
was 102; striped mullet and silver carp were collected and added as
new species during 2000. Striped mullet collections are unusual in the
Open River. The silver carp is an accidental hatchery released exotic
species (Table 3.5).
- Five Missouri-listed species of concern were collected: paddlefish,
Mississippi silvery minnow, silver chub, blue sucker, and striped mullet
(Table 3.5).
- Mean catch-per-unit-effort and standard error for fish collected
by gears using stratified random (Tables
4.5-13.5) and fixed-site sampling (Tables
14.5-20.5) for each stratum are shown.
- Length distributions for selected species of fish are shown in Figures 2.5 to19.5.
Content manager: Jennie
Sauer
Page Last Modified: April 17, 2018