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

Drainage Ditch 81 Nevada (Mixed HWCRS)

Invert Sampling Session #2669

Session Data

Sample Date
8/29/2007
Sampling Gear
Surber
Lab ID Number
2007033837
Sample Quality
Good
Created Date
4/9/2008 12:00:00 AM
Last Update
4/12/2012 11:07:13 AM

Semi-Quantitative Sampling

Replicate Number
2
Dominant Form Periphyton
Filamentous Algae
(LT- Light, MD- Moderate, MH- Moderate/Heavy, HV- Heavy)
Periphyton Growth
MH
Sedimentation/Embededness
MH
Colonization
LT
Comments

No comments recorded.

Collected Benthic Macroinvertebrates

  • Total taxa collected 9
  • Total individuals collected 110
Scientific Name Order Family Common Name # Collected
Bivalvia Mussels and Clams 2
Chironomidae Diptera Chironomidae Non-Biting Midges, Midges 61
Erpobdella Arhynchobdellida Erpobdellidae Leeches 1
Fallceon quilleri Ephemeroptera Baetidae Small Minnow Mayflies 4
Girardia Tricladida Dugesiidae Flatworms 38
Oligochaeta Aquatic Worms 1
Physa Basommatophora Physidae Physid Snails 1
Stenelmis Coleoptera Elmidae Riffle Beetles 1
Stenelmis crenata Coleoptera Elmidae Riffle Beetles 1

= Excluded from taxa count metrics

Notes: