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

Mill Creek Larrabee

Invert Sampling Session #8494

Session Data

Sample Date
9/19/2017
Sampling Gear
Hess
Lab ID Number
Sample Quality
Poor
Created Date
2/26/2018 7:29:02 AM
Last Update
4/18/2018 11:21:48 AM

Semi-Quantitative Sampling

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

Substrate in riffle was not optimal, no colonization for unknown reasons.

Collected Benthic Macroinvertebrates

  • Total taxa collected 17
  • Total individuals collected 92
Scientific Name Order Family Common Name # Collected
Baetidae Ephemeroptera Baetidae Small Minnow Mayflies 1
Baetis intercalaris Ephemeroptera Baetidae Small Minnow Mayflies 2
Ceratopsyche morosa Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 7
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 54
Cymbiodyta toddi Coleoptera Hydrophilidae Giant Water Scavenger Beetles 1
Ephydridae Diptera Ephydridae Shore Flies, Brine Flies 2
Fallceon quilleri Ephemeroptera Baetidae Small Minnow Mayflies 3
Fossaria Basommatophora Lymnaeidae Lymnaeid Snails 4
Girardia Tricladida Dugesiidae Flatworms 4
Hydrophilidae Coleoptera Hydrophilidae Giant Water Scavenger Beetles 1
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Limonia Diptera Tipulidae Crane Flies 1
Nemotelus Diptera Stratiomyidae Soldier Flies 1
Oligochaeta Aquatic Worms 6
Simulium Diptera Simuliidae Black Flies 1
Stenelmis Coleoptera Elmidae Riffle Beetles 2

= Excluded from taxa count metrics

Notes: