Missouri Streams Projects
to Assess Impact of Large-scale Livestock Production Wastes
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Macroinvertebrates in four Northern Missouri Streams
As part of requirements for a consent decree, numerous north-central Missouri stream sites were sampled as part of a five-year evaluation of the impact of accidental discharges of lagoon wastes from a large-scale livestock production facility.
Water quality parameters were measured as outlined in MDNR Stream Habitat Assessment Procedure. Collections were processed for macroinvertebrates according to the Semi-Quantitative Lotic Macroinvertebrate Sampling Procedure.
A total of 5,484 specimens, representing 99 taxa or species were identified. Chironomids, a family of ubiquitous fly larvae, dominated the invertebrate community, comprising 51% of the total specimens identified. Other dominant taxa were Caenis latipennis and Stenacron interpunctatum (two pollution-tolerant mayflies), Cheumatopsyche sp. (a pollution-tolerant caddisfly), and the class Oligochaeta, another pollution-tolerant group. The relative percentages of the dominant taxa are shown below.
Missouri Department of Natural Resources
P.O. Box 176
Jefferson City, MO 65102
- Stream habitat assessment for Macroinvertebrates