Memorial University DAI: Newfoundland macroinvertebrate riffle communities and their potential for use in bioassessment

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Title	Newfoundland macroinvertebrate riffle communities and their potential for use in bioassessment
Author	Smith, Erica L. (Erica Leann), 1982-
Description	Thesis (M.Sc.)--Memorial University of Newfoundland, 2009. Biology
Date	2009
Pagination	xiii, 1v. (various foliations) : ill., maps.
Subject	Environmental monitoring--Newfoundland and Labrador; Invertebrate communities--Seasonal variations--Newfoundland and Labrador; Invertebrate communities--Variation--Newfoundland and Labrador
Degree	M.Sc.
Degree Grantor	Memorial University of Newfoundland. Dept. of Biology
Discipline	Biology
Language	Eng
Spatial Coverage	Canada--Newfoundland and Labrador
Notes	Includes bibliographical references (leaves 7.1-7.19)
Abstract	Macroinvertebrate communities were sampled from 65 Newfoundland riffles from three geographic regions (the Avalon Peninsula, Terra Nova, and Gros Morne) in three seasons (summer, fall, spring). A suite of physical, chemical and land use variables were also measured. Differences in community composition across regions were found as well as large differences among seasons between sites sampled. Macroinvertebrate richness and abundance data were cross-examined with associated environmental variables to detect which ones were most related to macroinvertebrate community differences. UTM Easting, % macrophytes, % igneous rock, % local forest, nitrates, total Nitrogen and alkalinity were all highly correlated with trends in the macroinvertebrate community data. Urban communities differed from rural and pristine communities, the latter two community types being virtually indistinguishable. Temporal effects were examined to tease apart seasonal versus non-seasonal factors affecting the invertebrate-environment relationship. Changes in the frequency of occurrence of a few key taxa between years strongly impacted regional differences.
Type	Text
Format	Image/jpeg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	a3243838
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(25.35 MB) -- http://collections.mun.ca/PDFs/theses/Smith_EricaL.pdf
CONTENTdm file name	152479.cpd