2026-09-21T08:11:00.698010900Zhttps://opus.uleth.ca/server/oai/requestoai:opus.uleth.ca:10133/33622019-02-07T06:10:53Zcom_10133_3346com_10133_1com_10133_296col_10133_3347col_10133_298
ULethbridge OPUS Repository
supervisor
Rasmussen, Joseph B.
author
Kuchapski, Kathryn A.
2014-02-05T18:21:43Z
2014-02-05T18:21:43Z
2013
https://hdl.handle.net/10133/3362
Physical and chemical influences downstream of surface coal mines, including
selenium (Se) release, water quality shifts, and habitat alterations can affect aquatic
organisms. To evaluate these influences at the community level of organization, fish and
macroinvertebrates were studied in mine-affected and reference streams. Se can be toxic
to aquatic organisms and was measured in lotic food chains (water, biofilm,
macroinvertebrates and juvenile salmonids). Invertebrate Se was significantly related to
Se in juvenile fish muscle (westslope cutthroat, bull, rainbow and brook trout) and Se
concentrations exceeded proposed individual-level reproductive effects thresholds in
some rainbow and cutthroat trout. Community-level effects were only detected in
rainbow trout where species specific biomass was negatively related to muscle Se
concentration in stream reaches. Macroinvertebrate assemblages varied along a mineinfluence
gradient defined by Se, alkalinity, substrate embeddedness and interstitial
material size. Ephemeroptera were the most sensitive to mining effects and potential
mechanisms influencing community composition included Se and ion toxicity and habitat
degradation. This project highlights the need to study multiple organisms at different
levels of ecological organization in order to understand and manage diverse mining
impacts.
en_CA
Fishes -- Effect of selenium on -- Research -- Canadian Rockies (B.C. and Alta.)
Fishes -- Effect of mining on -- Research -- Canadian Rockies (B.C. and Alta.)
Stream invertebrates -- Effect of selenium on -- Research -- Canadian Rockies (B.C. and Alta.)
Stream invertebrates -- Effect of mining on -- Research -- Canadian Rockies (B.C. and Alta.)
Coal mines and mining -- Environmental aspects -- Canadian Rockies (B.C. and Alta.)
Strip mining -- Environmental aspects -- Canadian Rockies (B.C. and Alta.)
Selenium -- Environmental aspects
Dissertations, Academic
Effects of selenium and other surface coal mine influences on fish and invertebrates in Canadian Rockies streams
Thesis
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URL
http://localhost:4000/bitstreams/027124a8-6004-44ec-a8fc-4e111e85531a/download
File
MD5
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application/pdf
KUCHAPSKI_KATHRYN_MSC_2013.pdf
URL
http://localhost:4000/bitstreams/a8bbe96a-767a-4940-a0eb-3fdef9ab34f6/download
File
MD5
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text/plain
KUCHAPSKI_KATHRYN_MSC_2013.pdf.txt