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

Mill Creek Larrabee

Invert Sampling Session #8495

Session Data

Sample Date
9/19/2017
Sampling Gear
Hess
Lab ID Number
Sample Quality
Poor
Created Date
2/26/2018 7:33:22 AM
Last Update
3/9/2018 7:40:51 AM

Semi-Quantitative Sampling

Replicate Number
2
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 not optimal, no colonization for unknown reasons.

Collected Benthic Macroinvertebrates

  • Total taxa collected 22
  • Total individuals collected 101
Scientific Name Order Family Common Name # Collected
Acentrella parvula Ephemeroptera Baetidae Small Minnow Mayflies 2
Baetidae Ephemeroptera Baetidae Small Minnow Mayflies 1
Baetis intercalaris Ephemeroptera Baetidae Small Minnow Mayflies 3
Baetisca lacustris Ephemeroptera Baetiscidae Armored Mayflies 1
Ceratopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Ceratopsyche morosa Trichoptera Hydropsychidae Common Netspinner Caddisflies 5
Cheumatopsyche Trichoptera Hydropsychidae Common Netspinner Caddisflies 9
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 43
Coenagrionidae Odonata Coenagrionidae Narrowwinged Damselflies 1
Fallceon quilleri Ephemeroptera Baetidae Small Minnow Mayflies 19
Girardia Tricladida Dugesiidae Flatworms 3
Gomphus Odonata Gomphidae Clubtail Dragonflies 1
Hetaerina Odonata Calopterygidae Broadwinged Damselflies 1
Hydropsyche simulans Trichoptera Hydropsychidae Common Netspinner Caddisflies 1
Hydropsychidae Trichoptera Hydropsychidae Common Netspinner Caddisflies 2
Hydroptilidae Trichoptera Hydroptilidae Micro Caddisflies 1
Maccaffertium terminatum Ephemeroptera Heptageniidae Flatheaded Mayflies 1
Oligochaeta Aquatic Worms 1
Stenelmis Coleoptera Elmidae Riffle Beetles 1
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 1
Stenelmis decorata Coleoptera Elmidae Riffle Beetles 1
Tricorythodes Ephemeroptera Leptohyphidae Little Stout Crawler Mayflies 2

= Excluded from taxa count metrics

Notes: