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

North River Norwalk - USGS Gage

Invert Sampling Session #3724

Session Data

Sample Date
10/18/2002
Sampling Gear
Artificial Substrate
Lab ID Number
200266839
Sample Quality
Unspecified
Created Date
11/3/2004 12:00:00 AM
Last Update
8/10/2010 12:41:37 PM

Semi-Quantitative Sampling

Replicate Number
3
Dominant Form Periphyton
No Data
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
No Data
Sedimentation/Embededness
No Data
Colonization
No Data
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 10
  • Total individuals collected 81
Scientific Name Order Family Common Name # Collected
Argia Odonata Coenagrionidae Narrowwinged Damselflies 6
Ceratopogonidae Diptera Ceratopogonidae Biting Midges, No-See-Ums, Punkies 3
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 4
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 47
Heptageniidae Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Maccaffertium pulchellum Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Macronychus glabratus Coleoptera Elmidae Riffle Beetles 2
Nyctiophylax Trichoptera Polycentropodidae Trumpetnet and Tubemaking Caddisflies 1
Oligochaeta Aquatic Worms 6
Stenacron interpunctatum Ephemeroptera Heptageniidae Flatheaded Mayflies 10

= Excluded from taxa count metrics

Notes: