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

Iowa River near Marshalltown

Invert Sampling Session #5864

Session Data

Sample Date
9/4/2013
Sampling Gear
Qualitative
Lab ID Number
122056
Sample Quality
Fair
Created Date
1/2/2014 7:35:51 AM
Last Update
9/12/2014 11:42:18 AM

Qualitative Benthic Habitat Inventory

Abundance/
Rank
Substrate Presence
Pool/Glide
Presence
Riffle/Run
1 Fine Sediments
2 Woody Debris
3 Concrete Riprap
4 Roots/Undercut Banks
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 21
  • Total individuals collected 114
Scientific Name Order Family Common Name # Collected
Argia Odonata Coenagrionidae Narrowwinged Damselflies 14
Baetis intercalaris Ephemeroptera Baetidae Small Minnow Mayflies 1
Brachycentrus numerosus Trichoptera Brachycentridae Humpless Case Maker Caddisflies 1
Caenis hilaris Ephemeroptera Caenidae Small Squaregill Mayflies 1
Callibaetis Ephemeroptera Baetidae Small Minnow Mayflies 2
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 56
Corixidae Hemiptera Corixidae Water Boatmen 2
Dubiraphia minima Coleoptera Elmidae Riffle Beetles 1
Gomphus Odonata Gomphidae Clubtail Dragonflies 4
Hexagenia limbata Ephemeroptera Ephemeridae Common Burrower Mayflies 1
Hydropsyche simulans Trichoptera Hydropsychidae Common Netspinner Caddisflies 6
Maccaffertium Ephemeroptera Heptageniidae Flatheaded Mayflies 4
Maccaffertium exiguum Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Macronychus glabratus Coleoptera Elmidae Riffle Beetles 3
Metrobates Hemiptera Gerridae Water Striders 1
Nematomorpha Horsehair Worms, Hair Worms 1
Neurocordulia molesta Odonata Corduliidae Greeneyed Skimmers 1
Oligochaeta Aquatic Worms 1
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 6
Stylurus Odonata Gomphidae Clubtail Dragonflies 2
Tricorythodes Ephemeroptera Leptohyphidae Little Stout Crawler Mayflies 5

= Excluded from taxa count metrics

Notes: