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.

1,146,706
Total Fish Collected
119
Unique Fish Species
2,204
Total Surveys
1,872
FIBI Assessments

Top 5 Most Collected Fish

Species Total Catch
Central Stoneroller 103,285
Bluntnose Minnow 97,228
Creek Chub 95,528
White Sucker 84,386
Sand Shiner 73,968

Top 5 Most Common Fish

Species % of all sites
Creek Chub 71.03%
Bigmouth Shiner 61.94%
White Sucker 61.77%
Johnny Darter 59.22%
Bluntnose Minnow 59.05%

BioNet Sessions

Methodology Sessions
Standard Wadeable 1489
Rapid Assessment 180
Non-wadeable 41
Fishkill Followup 28

FishNet Sessions

Methodology Sessions
Standard Wadeable 205
Game Fish Only 119
Fisheries Non-wadeable 100
Game Fish/Non-game Presence Only Survey 42
Stream Sample Date Score
Stream Sample Date Score