Iowa DNR
BioNet
River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments

Fish Program Statistics and Summary

Fish surveys are a critical component of the assessment process. The BioNet application also hosts data collected by other programs within the Iowa DNR that collected fish using the Bioassessment methods and protocols. These data are stored in the FishNet portion of BioNet. See also: FIBI, Iowa's EcoRegions, About the Bioassessment Program .

1,626,647
Total Fish Collected
133
Unique Fish Species
3,154
Total Surveys
2,655
FIBI Assessments

Top 5 Most Collected Fish

Species Total Catch
Central Stoneroller 136,674
Bluntnose Minnow 127,220
Creek Chub 125,923
White Sucker 125,614
Common Shiner 106,020

Top 5 Most Common Fish

Species % of all sites
Creek Chub 71.38%
White Sucker 62.46%
Johnny Darter 59.88%
Bigmouth Shiner 59.15%
Bluntnose Minnow 57.5%

BioNet Sessions

Methodology Sessions
Standard Wadeable 1937
Rapid Assessment 180
Fishkill Followup 73
Non-wadeable 53

FishNet Sessions

Methodology Sessions
Standard Wadeable 446
Game Fish Only 227
Fisheries Non-wadeable 146
Game Fish/Non-game Presence Only Survey 92
Stream Sample Date Score
Stream Sample Date Score