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 #10998

Session Data

Sample Date
7/29/2024
Sampling Gear
Qualitative
Lab ID Number
2473616
Sample Quality
Good
Created Date
1/21/2025 1:49:50 PM
Last Update
1/22/2025 10:37:48 AM

Qualitative Benthic Habitat Inventory

Abundance/
Rank
Substrate Presence
Pool/Glide
Presence
Riffle/Run
1 Coarse Rock
2 Fine Sediments
3 Filamentous Algae
4 Bedrock/Large Boulders
5 Roots/Undercut Banks
Woody Debris
Streambank Vegetation
Leaf/Detritus Packs
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 29
  • Total individuals collected 146
Scientific Name Order Family Common Name # Collected
Agabini-Complex Coleoptera Dytiscidae Predaceous Diving Beetles 2
Anacaena lutescens Coleoptera Hydrophilidae Giant Water Scavenger Beetles 1
Anopheles Diptera Culicidae Mosquitoes 4
Baetis brunneicolor Ephemeroptera Baetidae Small Minnow Mayflies 13
Baetis flavistriga Ephemeroptera Baetidae Small Minnow Mayflies 11
Baetis tricaudatus Ephemeroptera Baetidae Small Minnow Mayflies 11
Boyeria vinosa Odonata Aeshnidae Darner Dragonflies 4
Caecidotea Isopoda Asellidae Aquatic Sowbugs 3
Ceratopsyche alhedra Trichoptera Hydropsychidae Common Netspinner Caddisflies 17
Ceratopsyche bronta Trichoptera Hydropsychidae Common Netspinner Caddisflies 4
Ceratopsyche slossonae Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 18
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 4
Coenagrionidae Odonata Coenagrionidae Narrowwinged Damselflies 1
Erpobdella punctata Arhynchobdellida Erpobdellidae Leeches 2
Girardia Tricladida Dugesiidae Flatworms 3
Glossiphonia elegans Rhynchobdellida Glossiphoniidae Leeches 1
Helicopsyche borealis Trichoptera Helicopsychidae Snailcase Maker Caddisflies 1
Hyalella Amphipoda Talitridae Scuds and sideswimmers 3
Hydropsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Hydroptila Trichoptera Hydroptilidae Micro Caddisflies 1
Ilybiosoma seriatum Coleoptera Dytiscidae Predaceous Diving Beetles 2
Leptoceridae Trichoptera Leptoceridae Longhorned Case Maker Caddisflies 4
Neureclipsis Trichoptera Polycentropodidae Trumpetnet and Tubemaking Caddisflies 1
Optioservus fastiditus Coleoptera Elmidae Riffle Beetles 1
Physa Basommatophora Physidae Physid Snails 6
Polycentropus Trichoptera Polycentropodidae Trumpetnet and Tubemaking Caddisflies 2
Scirtidae Coleoptera Scirtidae Marsh Beetles 3
Simulium Diptera Simuliidae Black Flies 21

= Excluded from taxa count metrics

Notes: