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

Coldwater Creek Coldwater Creek SWMA - Bluffton

Invert Sampling Session #11038

Session Data

Sample Date
7/24/2024
Sampling Gear
Qualitative
Lab ID Number
2470298
Sample Quality
Good
Created Date
1/24/2025 7:21:58 AM
Last Update
1/27/2025 1:55:45 PM

Qualitative Benthic Habitat Inventory

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

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 30
  • Total individuals collected 347
Scientific Name Order Family Common Name # Collected
Baetis brunneicolor Ephemeroptera Baetidae Small Minnow Mayflies 9
Baetis tricaudatus Ephemeroptera Baetidae Small Minnow Mayflies 31
Belostomatidae Hemiptera Belostomatidae Giant Water Bugs 1
Brachycentrus occidentalis Trichoptera Brachycentridae Humpless Case Maker Caddisflies 78
Branchiobdellida Branchiobdellida Leeches 2
Caecidotea Isopoda Asellidae Aquatic Sowbugs 40
Ceratopsyche alhedra Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 14
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 16
Chrysops Diptera Tabanidae Horse Flies, Deer Flies 1
Coptotomus longulus Coleoptera Dytiscidae Predaceous Diving Beetles 1
Corixidae Hemiptera Corixidae Water Boatmen 3
Erpobdella dubia Arhynchobdellida Erpobdellidae Leeches 3
Faxonius virilis Decapoda Cambaridae Crayfishes 1
Gammarus Amphipoda Gammaridae Scuds and sideswimmers 28
Girardia Tricladida Dugesiidae Flatworms 12
Glossosoma Trichoptera Glossosomatidae Saddlecase Maker Caddisflies 9
Hesperophylax designatus Trichoptera Limnephilidae Northern Case Maker Caddisflies 50
Hydroptila Trichoptera Hydroptilidae Micro Caddisflies 3
Limnephilidae Trichoptera Limnephilidae Northern Case Maker Caddisflies 8
Microvelia Hemiptera Veliidae Broad-Shouldered Water Striders 1
Nematoda Nematodes 1
Oligochaeta Aquatic Worms 1
Physa Basommatophora Physidae Physid Snails 5
Ranatra fusca Hemiptera Nepidae Water Scorpions 1
Sanfilippodytes pseudovilis Coleoptera Dytiscidae Predaceous Diving Beetles 1
Sigara Hemiptera Corixidae Water Boatmen 2
Simulium Diptera Simuliidae Black Flies 11
Trombidiformes Trombidiformes Water Mites 12
Tropisternus natator Coleoptera Hydrophilidae Giant Water Scavenger Beetles 1

= Excluded from taxa count metrics

Notes: