H eadwater M acro-invertebrate F ield E valuation I ndex (HMFEI)
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H H eadwater eadwater M M acro-invertebrate acro-invertebrate F F ield ield E E valuation valuation I I ndex ndex (HMFEI) (HMFEI) Photo by Garrett Rauckhorst Photo by Garrett Rauckhorst
description
H eadwater M acro-invertebrate F ield E valuation I ndex (HMFEI). Photo by Garrett Rauckhorst. HMFEI Basics. WHAT is it? A rapid bio-assessment field method using benthic macroinvertebrates A method to predict the number of cool water taxa present WHY use it? - PowerPoint PPT Presentation
Transcript of H eadwater M acro-invertebrate F ield E valuation I ndex (HMFEI)
HHeadwater eadwater MMacro-invertebrate acro-invertebrate
FField ield EEvaluation valuation IIndexndex (HMFEI)(HMFEI)
Photo by Garrett RauckhorstPhoto by Garrett Rauckhorst
HMFEI BasicsHMFEI Basics WHAT is it?WHAT is it?
A rapid bio-assessment field method A rapid bio-assessment field method using benthic macroinvertebratesusing benthic macroinvertebrates
A method to predict the number of cool A method to predict the number of cool water taxa present water taxa present
WHY use it?WHY use it? A good predictor of Primary Headwater A good predictor of Primary Headwater
Habitat (PHWH) stream classHabitat (PHWH) stream class A good method of separating Class II A good method of separating Class II
PHWH streams from Class I and Class III PHWH streams from Class I and Class III PHWH streamsPHWH streams
HMFEI Basics continuedHMFEI Basics continued
HOW use it?HOW use it? Collect macro-invertebrates using standard Collect macro-invertebrates using standard
protocolprotocol Identify specimen to appropriate taxonomic Identify specimen to appropriate taxonomic
level level Multiply each taxonMultiply each taxon11 by its value as by its value as
identified on the HMFEI field formidentified on the HMFEI field form Use the HMFEI table to classify the stream. Use the HMFEI table to classify the stream.
WHEN use it?WHEN use it? If HHEI is ambiguousIf HHEI is ambiguous22
Taxon
Animal or plant group having natural relations.
Ambiguous
Doubtful or uncertain especially from obscurity or indistinctness
Macro-invertebrate Macro-invertebrate IdentificationIdentification
A useful key for benthic A useful key for benthic macroinvertebrates can be found at macroinvertebrates can be found at http://www.wvdep.org/Docs/13545_WVSOS%20Couplet%20key.pdf
The Dichotomous Key begins on The Dichotomous Key begins on page 6page 6
Couplet Key begins on page 15Couplet Key begins on page 15
Field Guide to Aquatic Field Guide to Aquatic InvertebratesInvertebrates
Another good online identification Another good online identification resource can be found at resource can be found at http://www.wvdep.org/Docs/12924_Guide_to_Aquatic_Invertebrates.pdf
Includes identification to family levelIncludes identification to family level
Table SummariesTable Summaries
Integrity of Integrity of HMFEIHMFEI Field identification Field identification
usually inferior to usually inferior to voucher sample voucher sample identificationidentification
A thorough field A thorough field collection of all collection of all habitats requiredhabitats required
Collector needs Collector needs taxonomic taxonomic experience experience
Photo by Katie EppleyPhoto by Katie Eppley
