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

Winnebago River Mason City - US1

Invert Sampling Session #5523

Session Data

Sample Date
8/7/2012
Sampling Gear
Artificial Substrate
Lab ID Number
49138
Sample Quality
Fair
Created Date
10/28/2013 12:49:09 PM
Last Update
11/4/2013 2:21:31 PM

Semi-Quantitative Sampling

Replicate Number
3
Dominant Form Periphyton
Filamentous Algae
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
HV
Sedimentation/Embededness
LT
Colonization
MD
Comments

lower velocity due to filamentous mats.

Collected Benthic Macroinvertebrates

  • Total taxa collected 15
  • Total individuals collected 100
Scientific Name Order Family Common Name # Collected
Acroneuria abnormis Plecoptera Perlidae Common Stoneflies 1
Caenis Ephemeroptera Caenidae Small Squaregill Mayflies 1
Caenis hilaris Ephemeroptera Caenidae Small Squaregill Mayflies 8
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 12
Corydalus Megaloptera Corydalidae Dobsonflies, Fishflies, Hellgrammites 1
Fallceon quilleri Ephemeroptera Baetidae Small Minnow Mayflies 2
Girardia Tricladida Dugesiidae Flatworms 7
Isonychia Ephemeroptera Isonychiidae Brushlegged Mayflies 1
Maccaffertium exiguum Ephemeroptera Heptageniidae Flatheaded Mayflies 5
Maccaffertium terminatum Ephemeroptera Heptageniidae Flatheaded Mayflies 22
Physa Basommatophora Physidae Physid Snails 1
Polycentropus Trichoptera Polycentropodidae Trumpetnet and Tubemaking Caddisflies 1
Stenacron interpunctatum Ephemeroptera Heptageniidae Flatheaded Mayflies 32
Stenelmis grossa Coleoptera Elmidae Riffle Beetles 1
Tricorythodes Ephemeroptera Leptohyphidae Little Stout Crawler Mayflies 5

= Excluded from taxa count metrics

Notes: