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

Hecker Creek Postville Receiving Stream - W43 Bridge

Invert Sampling Session #10997

Session Data

Sample Date
7/29/2024
Sampling Gear
Hess
Lab ID Number
2473615
Sample Quality
Good
Created Date
1/21/2025 1:49:50 PM
Last Update
1/22/2025 10:32:44 AM

Semi-Quantitative Sampling

Replicate Number
3
Dominant Form Periphyton
Nonfilamentous Algae
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
MH
Sedimentation/Embededness
LT
Colonization
MH
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 10
  • Total individuals collected 111
Scientific Name Order Family Common Name # Collected
Baetis brunneicolor Ephemeroptera Baetidae Small Minnow Mayflies 1
Baetis flavistriga Ephemeroptera Baetidae Small Minnow Mayflies 8
Baetis tricaudatus Ephemeroptera Baetidae Small Minnow Mayflies 13
Ceratopsyche alhedra Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 11
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 2
Nematoda Nematodes 1
Physa Basommatophora Physidae Physid Snails 1
Simulium Diptera Simuliidae Black Flies 72
Turbellaria Flatworms 1

= Excluded from taxa count metrics

Notes: