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

Rock Creek Rock Creek

Invert Sampling Session #11047

Session Data

Sample Date
7/17/2024
Sampling Gear
Hess
Lab ID Number
2466899
Sample Quality
Good
Created Date
1/24/2025 9:15:27 AM
Last Update
1/27/2025 11:52:32 AM

Semi-Quantitative Sampling

Replicate Number
1
Dominant Form Periphyton
Nonfilamentous Algae
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
MD
Sedimentation/Embededness
LT
Colonization
MD
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 20
  • Total individuals collected 102
Scientific Name Order Family Common Name # Collected
Acentrella parvula Ephemeroptera Baetidae Small Minnow Mayflies 1
Baetis flavistriga Ephemeroptera Baetidae Small Minnow Mayflies 2
Ceratopsyche bronta Trichoptera Hydropsychidae Common Netspinner Caddisflies 10
Ceratopsyche morosa Trichoptera Hydropsychidae Common Netspinner Caddisflies 8
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 42
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 6
Girardia Tricladida Dugesiidae Flatworms 2
Helicopsyche borealis Trichoptera Helicopsychidae Snailcase Maker Caddisflies 2
Hemerodromia Diptera Empididae Dance Flies 1
Hydropsyche betteni Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 3
Maccaffertium Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Nematoda Nematodes 3
Nixe/Leucrocuta Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Optioservus fastiditus Coleoptera Elmidae Riffle Beetles 1
Plauditus punctiventris/virilis Ephemeroptera Baetidae Small Minnow Mayflies 1
Sphaeriidae Veneroida Sphaeriidae Fingernail clams 1
Stenacron interpunctatum Ephemeroptera Heptageniidae Flatheaded Mayflies 2
Stenelmis Coleoptera Elmidae Riffle Beetles 13
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 1

= Excluded from taxa count metrics

Notes: