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

Thompson River Decatur City

Invert Sampling Session #10333

Session Data

Sample Date
7/28/2022
Sampling Gear
Qualitative
Lab ID Number
2144116
Sample Quality
Good
Created Date
1/23/2023 3:12:19 PM
Last Update
1/16/2024 11:56:53 AM

Qualitative Benthic Habitat Inventory

Abundance/
Rank
Substrate Presence
Pool/Glide
Presence
Riffle/Run
1 Fine Sediments
2 Coarse Rock
3 Woody Debris
4 Leaf/Detritus Packs
5 Clay/Hardpan
Roots/Undercut Banks
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 43
  • Total individuals collected 277
Scientific Name Order Family Common Name # Collected
Acroneuria Plecoptera Perlidae Common Stoneflies 3
Attaneuria ruralis Plecoptera Perlidae Common Stoneflies 1
Baetidae Ephemeroptera Baetidae Small Minnow Mayflies 5
Baetis intercalaris Ephemeroptera Baetidae Small Minnow Mayflies 4
Brachycentrus numerosus Trichoptera Brachycentridae Humpless Case Maker Caddisflies 1
Caenis Ephemeroptera Caenidae Small Squaregill Mayflies 14
Caenis hilaris Ephemeroptera Caenidae Small Squaregill Mayflies 20
Callibaetis Ephemeroptera Baetidae Small Minnow Mayflies 1
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 26
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 10
Corydalus Megaloptera Corydalidae Dobsonflies, Fishflies, Hellgrammites 11
Fallceon quilleri Ephemeroptera Baetidae Small Minnow Mayflies 7
Faxonius virilis Decapoda Cambaridae Crayfishes 1
Gomphus Odonata Gomphidae Clubtail Dragonflies 4
Helichus lithophilus Coleoptera Dryopidae Long-Toed Water Beetles 2
Heptagenia flavescens Ephemeroptera Heptageniidae Flatheaded Mayflies 10
Hydropsyche bidens Trichoptera Hydropsychidae Common Netspinner Caddisflies 12
Hydropsyche simulans Trichoptera Hydropsychidae Common Netspinner Caddisflies 22
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 11
Hydroptilidae Trichoptera Hydroptilidae Micro Caddisflies 1
Isonychia Ephemeroptera Isonychiidae Brushlegged Mayflies 13
Labiobaetis propinquus Ephemeroptera Baetidae Small Minnow Mayflies 1
Maccaffertium Ephemeroptera Heptageniidae Flatheaded Mayflies 3
Maccaffertium exiguum Ephemeroptera Heptageniidae Flatheaded Mayflies 11
Maccaffertium mexicanum Ephemeroptera Heptageniidae Flatheaded Mayflies 3
Maccaffertium terminatum Ephemeroptera Heptageniidae Flatheaded Mayflies 28
Macronychus glabratus Coleoptera Elmidae Riffle Beetles 7
Nectopsyche candida Trichoptera Leptoceridae Longhorned Case Maker Caddisflies 2
Neoporus dimidiatus Coleoptera Dytiscidae Predaceous Diving Beetles 1
Neurocordulia molesta Odonata Corduliidae Greeneyed Skimmers 2
Oligochaeta Aquatic Worms 2
Paracloeodes minutus Ephemeroptera Baetidae Small Minnow Mayflies 1
Physa Basommatophora Physidae Physid Snails 1
Potamyia flava Trichoptera Hydropsychidae Common Netspinner Caddisflies 2
Procloeon Ephemeroptera Baetidae Small Minnow Mayflies 1
Progomphus Odonata Gomphidae Clubtail Dragonflies 2
Rhagovelia Hemiptera Veliidae Broad-Shouldered Water Striders 4
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 5
Tortopsis primus Ephemeroptera Polymitarcyidae Pale Burrower Mayflies 1
Trichoptera Trichoptera Caddisflies 2
Tricorythodes Ephemeroptera Leptohyphidae Little Stout Crawler Mayflies 14
Tropisternus natator Coleoptera Hydrophilidae Giant Water Scavenger Beetles 3
Unionidae Unionoida Unionidae Mussels 2

= Excluded from taxa count metrics

Notes: