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 .

1,611,050
Total Fish Collected
130
Unique Fish Species
3,102
Total Surveys
2,603
FIBI Assessments

Top 5 Most Collected Fish

Species Total Catch
Central Stoneroller 136,102
Bluntnose Minnow 126,553
Creek Chub 123,805
White Sucker 123,239
Sand Shiner 104,667

Top 5 Most Common Fish

Species % of all sites
Creek Chub 70.99%
White Sucker 62.98%
Bigmouth Shiner 60.05%
Johnny Darter 59.78%
Bluntnose Minnow 58.02%

BioNet Sessions

Methodology Sessions
Standard Wadeable 1935
Rapid Assessment 180
Fishkill Followup 62
Non-wadeable 53

FishNet Sessions

Methodology Sessions
Standard Wadeable 414
Game Fish Only 227
Fisheries Non-wadeable 139
Game Fish/Non-game Presence Only Survey 92
Stream Sample Date Score
Stream Sample Date Score