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

Rock River Hawarden

Invert Sampling Session #5698

Session Data

Sample Date
9/4/2013
Sampling Gear
Artificial Substrate
Lab ID Number
122345
Sample Quality
Good
Created Date
12/6/2013 7:10:11 AM
Last Update
8/15/2014 3:15:59 PM

Semi-Quantitative Sampling

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

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 8
  • Total individuals collected 139
Scientific Name Order Family Common Name # Collected
Baetidae Ephemeroptera Baetidae Small Minnow Mayflies 1
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 8
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 111
Coenagrionidae Odonata Coenagrionidae Narrowwinged Damselflies 1
Heptageniidae Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Hydropsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 2
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 9
Oligochaeta Aquatic Worms 6

= Excluded from taxa count metrics

Notes: