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

Iowa River near Marshalltown

Invert Sampling Session #5862

Session Data

Sample Date
9/4/2013
Sampling Gear
Floating Artificial Substrate
Lab ID Number
122054
Sample Quality
Poor
Created Date
1/2/2014 7:35:51 AM
Last Update
9/12/2014 11:39:58 AM

Semi-Quantitative Sampling

Replicate Number
2
Dominant Form Periphyton
Nonfilamentous Algae
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
LT
Sedimentation/Embededness
MH
Colonization
MD
Comments

High sedimentation

Collected Benthic Macroinvertebrates

  • Total taxa collected 7
  • Total individuals collected 115
Scientific Name Order Family Common Name # Collected
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 3
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 106
Hydropsyche bidens Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Hydropsyche simulans Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 2
Isonychia Ephemeroptera Isonychiidae Brushlegged Mayflies 1
Maccaffertium exiguum Ephemeroptera Heptageniidae Flatheaded Mayflies 1

= Excluded from taxa count metrics

Notes: