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Steamboat Rock Dam

a river restoration project

2019 Iowa River Electrofishing Results

10/31/2019

 
Prepared by Kurt Meek, Iowa DNR Fisheries Management on 10/17/2019
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In July 2019 the Iowa DNR Clear Lake Fisheries Management crew electrofished two sites on the Iowa River near the Steamboat Rock Dam.  The results of the electrofishing are reported below.  For Site 2 (below Steamboat Rock Dam) the DNR prepared length-frequency graphs of game fish sampledd.  For Site 1 (above Steamboat Rock Dam) not enough game fish were sampled to compile graphs.  

Electrofishing Results
​Site 1 (above Steamboat Rock Dam)
Sampling Location: Hardin City Access to Steamboat Rock (6.8 miles)
Sampling Date: July 18th 2019
Sampling Time: 168 minutes of electrofishing
Gage Information: Iowa River at
​Steamboat Rock Gage,
​Stage=6.18ft, Flow=492cfs

Number of Sampled Species: 18
  • Bigmouth buffalo
  • Black crappie (1)
  • Blackside darter
  • Channel catfish (2)
  • Common carp
  • Golden redhorse
  • Highfin carpsucker
  • Hornyhead chub
  • N. Hog sucker
  • Northern Pike (3)
  • Quillback
  • River carpsucker
  • Sand shiner
  • Shorthead redhorse
  • Smallmouth bass (4)
  • Silver Redhorse
  • Stone cat
  • White sucker
Site 2 (below Steamboat Rock Dam)
Sampling Location: Steamboat Rock Dam to Pine Lake State Park Access (5.6 miles)
Sampling Date: July 31st 2019
Sampling Time: 198 minutes of
electrofishing
Gage Information: Iowa River at
Steamboat Rock Gage,
​Stage=5.93ft, Flow=344cfs

Number of Sampled Species: 22
  • Banded darter
  • Bigmouth buffalo
  • Channel catfish (200)
  • Common carp
  • Flathead catfish (3)
  • Freshwater drum
  • Grass carp (4)
  • Golden redhorse
  • Highfin carpsucker
  • Hornyhead chub
  • N. Hog sucker
  • Northern Pike (5)
  • Quillback
  • River carpsucker
  • Sand shiner
  • Shorthead redhorse
  • Smallmouth bass (27)
  • Silver Redhorse
  • Slenderhead darter
  • Spotfin shiner
  • Walleye (65)
  • White sucker
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