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

Rock Creek Rock Creek

Invert Sampling Session #11050

Session Data

Sample Date
7/17/2024
Sampling Gear
Qualitative
Lab ID Number
2466902
Sample Quality
Good
Created Date
1/24/2025 9:15:27 AM
Last Update
1/30/2025 8:18:46 AM

Qualitative Benthic Habitat Inventory

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

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 35
  • Total individuals collected 197
Scientific Name Order Family Common Name # Collected
Aeshna umbrosa Odonata Aeshnidae Darner Dragonflies 1
Baetis brunneicolor Ephemeroptera Baetidae Small Minnow Mayflies 3
Baetis flavistriga Ephemeroptera Baetidae Small Minnow Mayflies 1
Boyeria vinosa Odonata Aeshnidae Darner Dragonflies 5
Calopteryx Odonata Calopterygidae Broadwinged Damselflies 5
Cambaridae Decapoda Cambaridae Crayfishes 2
Ceratopsyche bronta Trichoptera Hydropsychidae Common Netspinner Caddisflies 20
Ceratopsyche morosa Trichoptera Hydropsychidae Common Netspinner Caddisflies 4
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 39
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 1
Faxonius virilis Decapoda Cambaridae Crayfishes 2
Ferrissia Basommatophora Ancylidae Ancylid Snails 1
Helichus lithophilus Coleoptera Dryopidae Long-Toed Water Beetles 1
Helicopsyche borealis Trichoptera Helicopsychidae Snailcase Maker Caddisflies 14
Helisoma anceps Basommatophora Planorbidae Planorbid Snails 1
Heptagenia elegantula Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Heptageniidae Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Hetaerina Odonata Calopterygidae Broadwinged Damselflies 1
Hexagenia limbata Ephemeroptera Ephemeridae Common Burrower Mayflies 1
Hyalella Amphipoda Talitridae Scuds and sideswimmers 8
Hydrobiidae Neotaenioglossa Hydrobiidae Hydrobiid Snails 1
Hydropsyche betteni Trichoptera Hydropsychidae Common Netspinner Caddisflies 2
Isonychia Ephemeroptera Isonychiidae Brushlegged Mayflies 1
Labiobaetis propinquus Ephemeroptera Baetidae Small Minnow Mayflies 48
Libellula pulchella Odonata Libellulidae Skimmer Dragonflies 2
Maccaffertium terminatum Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Microvelia Hemiptera Veliidae Broad-Shouldered Water Striders 1
Nectopsyche diarina Trichoptera Leptoceridae Longhorned Case Maker Caddisflies 4
Nixe Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Physa Basommatophora Physidae Physid Snails 4
Simulium Diptera Simuliidae Black Flies 6
Sphaeriidae Veneroida Sphaeriidae Fingernail clams 2
Stenacron interpunctatum Ephemeroptera Heptageniidae Flatheaded Mayflies 10
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 1
Veliidae Hemiptera Veliidae Broad-Shouldered Water Striders 1

= Excluded from taxa count metrics

Notes: