Mo DNR: MoDNR 2003 invert multihabitat: Macroinvertebrate Multi-habitat sampling methods from riffle/pool or glide/pool predominant streams
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Official Method Name
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Semi-Quantitative Macroinvertebrate Stream Bioassessment, multi-habitat sampling methods (riffle/pool or glide/pool) for Missouri |
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Current Revision
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Media
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Surface Water (Waterbody type - Wadeable stream) |
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Instrumentation
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Invertebrate Net (w/ handle) |
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Method Subcategory
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Population/Community |
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Method Source
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Citation
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Missouri Department of Natural Resources, 2003, Semi-Quantitative Macroinvertebrate Stream Bioassessment; Project Procedure, 24 p. |
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Brief Method Summary
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The purpose of this document is to provide guidance to Water Quality Monitoring Section personnel for the collection, preservation, identification, recording and analysis of semi-quantitative macroinvertebrate samples used in the bioassessment of Missouri’s wadeable streams and rivers. Any deviations from this procedure should be documented in the final report as to the reason for the deviation and the possible effects on the data. Whenever possible, technical support documents are cited for consultation.
Minimum qualifications of individuals that perform assessments as described in this procedure should be a Bachelor of Science in a biological field along with at least 1 year of training under a senior aquatic biologist in methods and taxonomy. |
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Scope and Application
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These multi-habitat sampling methods are designed to be used in permanently flowing wadeable streams. Wadeable streams are defined as having an average depth less than 1.5 meters. If necessary these sampling procedures can be adapted for use in the accessible, shallow portions of larger streams. Sampling should be done only when flow and depth conditions do not impair the ability of the investigator to efficiently collect organisms from the major habitats or threaten the safety of the individual. Ideally, sampling efforts should be carried out during periods of stable base flow before peak aquatic insect emergence times. In Missouri the sampling periods are from mid-March through mid-April and from mid-September through mid-October. |
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Applicable Concentration Range
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Interferences
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Quality Control Requirements
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Sample Handling
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Maximum Holding Time
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Relative Cost
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Sample Preparation Methods
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