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dc.contributor.authorBailey, Robert C
dc.contributor.authorScrimgeour, Garry
dc.contributor.authorCote, David
dc.contributor.authorKehler, Dan
dc.contributor.authorLinke, Simon
dc.contributor.authorCao, Yong
dc.date.accessioned2017-05-03T15:46:41Z
dc.date.available2017-05-03T15:46:41Z
dc.date.issued2012
dc.date.modified2013-02-14T00:01:56Z
dc.identifier.issn0706-652X
dc.identifier.doi10.1139/f2012-010
dc.identifier.urihttp://hdl.handle.net/10072/49083
dc.description.abstractThe effects on benthic macroinvertebrate communities of simulated degradation of streams enabled evaluation of the effects of starting condition, type of degradation, and biota descriptor on the type 1 and type 2 error rates of bioassessment. Benthic macroinvertebrate communities from five reference streams in the Fraser River basin (British Columbia, Canada) were used as the starting conditions of replicated simulations of the effects of suspended sediments in three temporal patterns (none, one-time severe, constant moderate). The dynamics of the simulated stream communities and the type 1 and type 2 errors associated with bioassessments, as described by (i) taxon richness, (ii) EPT (Ephemeroptera, Plecoptera, Trichoptera) richness, (iii) proportion of EPT individuals in the community, (iv) difference in composition from the median reference community (MCDist), (v) Simpson's diversity, and (vi) Simpson's equitability, depended on the combination of starting condition, simpact treatment, and the biota descriptor. To reduce type 1 and type 2 errors in bioassessments using the reference condition approach, bioassessment programs should include (i) matching of test and expected reference communities and refinement of the definition of reference condition and (ii) several biota descriptors that include measures of richness, tolerance, and community composition.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherNRC Research Press
dc.publisher.placeCanada
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom784
dc.relation.ispartofpageto796
dc.relation.ispartofissue4
dc.relation.ispartofjournalCanadian Journal of Fisheries and Aquatic Sciences
dc.relation.ispartofvolume69
dc.rights.retentionY
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchFisheries sciences
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode3109
dc.subject.fieldofresearchcode3005
dc.titleBioassessment of stream ecosystems enduring a decade of simulated degradation: lessons for the real world
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2012
gro.hasfulltextNo Full Text
gro.griffith.authorLinke, Simon


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