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

Coldwater Creek Coldwater Creek SWMA - Bluffton

Invert Sampling Session #11037

Session Data

Sample Date
7/24/2024
Sampling Gear
Hess
Lab ID Number
2470297
Sample Quality
Good
Created Date
1/24/2025 7:21:58 AM
Last Update
1/27/2025 1:53:15 PM

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 12
  • Total individuals collected 110
Scientific Name Order Family Common Name # Collected
Baetis tricaudatus Ephemeroptera Baetidae Small Minnow Mayflies 4
Brachycentrus occidentalis Trichoptera Brachycentridae Humpless Case Maker Caddisflies 8
Caecidotea Isopoda Asellidae Aquatic Sowbugs 38
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 2
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 24
Girardia Tricladida Dugesiidae Flatworms 8
Hesperophylax designatus Trichoptera Limnephilidae Northern Case Maker Caddisflies 1
Hydroptila Trichoptera Hydroptilidae Micro Caddisflies 1
Micrasema gelidum Trichoptera Brachycentridae Humpless Case Maker Caddisflies 15
Oligochaeta Aquatic Worms 1
Simulium Diptera Simuliidae Black Flies 5
Trombidiformes Trombidiformes Water Mites 3

= Excluded from taxa count metrics

Notes: