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

North River Norwalk - USGS Gage

Invert Sampling Session #3725

Session Data

Sample Date
10/18/2002
Sampling Gear
Qualitative
Lab ID Number
200266840
Sample Quality
Unspecified
Created Date
11/3/2004 12:00:00 AM
Last Update
4/3/2025 1:40:25 PM

Qualitative Benthic Habitat Inventory

No data recorded.

Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 8
  • Total individuals collected 31
Scientific Name Order Family Common Name # Collected
Argia Odonata Coenagrionidae Narrowwinged Damselflies 2
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 6
Macronychus glabratus Coleoptera Elmidae Riffle Beetles 4
Oligochaeta Aquatic Worms 2
Scirtidae Coleoptera Scirtidae Marsh Beetles 14
Sigara Hemiptera Corixidae Water Boatmen 1
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 1
Tricorythodes Ephemeroptera Leptohyphidae Little Stout Crawler Mayflies 1

= Excluded from taxa count metrics

Notes: