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

Fish Program Statistics and Summary

Since the bioassessment program began in 1994, fish surveys have been a critical component of the assessment process. In 2015, the BioNet application began hosting data collected by other programs within the Iowa DNR that collected fish using the Bioassessment protocols. These data are stored in the FishNet portion of BioNet.

1,181,915
Total Fish Collected
120
Unique Fish Species
2,257
Total Surveys
1,919
FIBI Assessments

Top 5 Most Collected Fish

Species Total Catch
Central Stoneroller 106,924
Creek Chub 99,067
Bluntnose Minnow 98,798
White Sucker 88,467
Common Shiner 75,832

Top 5 Most Common Fish

Species % of all sites
Creek Chub 71.5%
Bigmouth Shiner 62.43%
White Sucker 62.34%
Johnny Darter 59.71%
Bluntnose Minnow 59.37%

BioNet Sessions

Methodology Sessions
Standard Wadeable 1518
Rapid Assessment 180
Non-wadeable 41
Fishkill Followup 28

FishNet Sessions

Methodology Sessions
Standard Wadeable 219
Game Fish Only 126
Fisheries Non-wadeable 103
Game Fish/Non-game Presence Only Survey 42
Stream Sample Date Score
Stream Sample Date Score