Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland
Seasonal movements of brook trout (Salvelinus fontinalis Mitchell) within a treatment and control stream in a forested area near Corner Brook, Newfoundland were determined using counting fences and tagging. Trout movement was weakly or uncorrelated with habitat parameters. Most trout moved in associ...
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Memorial University of Newfoundland
1997
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Online Access: | https://research.library.mun.ca/4131/ https://research.library.mun.ca/4131/1/McCarthy_JamesH.pdf https://research.library.mun.ca/4131/3/McCarthy_JamesH.pdf |
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ftmemorialuniv:oai:research.library.mun.ca:4131 2023-10-01T03:57:36+02:00 Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland McCarthy, James H. 1997 application/pdf https://research.library.mun.ca/4131/ https://research.library.mun.ca/4131/1/McCarthy_JamesH.pdf https://research.library.mun.ca/4131/3/McCarthy_JamesH.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/4131/1/McCarthy_JamesH.pdf https://research.library.mun.ca/4131/3/McCarthy_JamesH.pdf McCarthy, James H. <https://research.library.mun.ca/view/creator_az/McCarthy=3AJames_H=2E=3A=3A.html> (1997) Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1997 ftmemorialuniv 2023-09-03T06:44:54Z Seasonal movements of brook trout (Salvelinus fontinalis Mitchell) within a treatment and control stream in a forested area near Corner Brook, Newfoundland were determined using counting fences and tagging. Trout movement was weakly or uncorrelated with habitat parameters. Most trout moved in association with increased discharge associated with storm events. Two patterns in upstream movement were observed: 1) an apparent 'preferred' velocity range of 0.395-0.462 m˙s⁻¹ in the treatment and 0.206-0.409 m˙s⁻¹ in the control stream; and 2) an increase in upstream movement after the storm peak if the peak was greater than 0.474 and 0.421 m˙s⁻¹ in the treatment and control stream, respectively. Downstream movement in the treatment stream occurred most at lower velocity ranges and trout moved more before and after storm peaks than during the peak. Downstream movement in the control stream occurred at all velocity ranges and trout moved throughout the storms. -- Increased movement out of the treatment stream was recorded in 1995 after a limited forest harvest of approximately 9.0% of the drainage basin (20% of the stream-length). Trout from the treatment stream did not appear to change their distance of migration but moved out of the treatment stream and into Copper Lake. This increase appeared to have been due to subtle changes in stream habitat. -- Discharge, maximum stream temperature, mean stream depth, velocity, and temperature were not altered by forest harvesting and dissolved oxygen did not reach critical levels even after the cut. The minimum daily water temperature was affected by harvesting with a significantly higher number of days with minimum temperatures less than 11°C. In addition, total suspended sediment appeared to have been increased, however, statistical evidence is lacking. -- Radio telemetry of mature trout in the lakes of the study area showed that lacustrine spawning represents a large proportion of the reproduction in certain areas of the watershed. This has rarely been documented in ... Thesis Newfoundland Memorial University of Newfoundland: Research Repository Corner Brook Storm Peak ENVELOPE(164.000,164.000,-84.583,-84.583) |
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Open Polar |
collection |
Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
language |
English |
description |
Seasonal movements of brook trout (Salvelinus fontinalis Mitchell) within a treatment and control stream in a forested area near Corner Brook, Newfoundland were determined using counting fences and tagging. Trout movement was weakly or uncorrelated with habitat parameters. Most trout moved in association with increased discharge associated with storm events. Two patterns in upstream movement were observed: 1) an apparent 'preferred' velocity range of 0.395-0.462 m˙s⁻¹ in the treatment and 0.206-0.409 m˙s⁻¹ in the control stream; and 2) an increase in upstream movement after the storm peak if the peak was greater than 0.474 and 0.421 m˙s⁻¹ in the treatment and control stream, respectively. Downstream movement in the treatment stream occurred most at lower velocity ranges and trout moved more before and after storm peaks than during the peak. Downstream movement in the control stream occurred at all velocity ranges and trout moved throughout the storms. -- Increased movement out of the treatment stream was recorded in 1995 after a limited forest harvest of approximately 9.0% of the drainage basin (20% of the stream-length). Trout from the treatment stream did not appear to change their distance of migration but moved out of the treatment stream and into Copper Lake. This increase appeared to have been due to subtle changes in stream habitat. -- Discharge, maximum stream temperature, mean stream depth, velocity, and temperature were not altered by forest harvesting and dissolved oxygen did not reach critical levels even after the cut. The minimum daily water temperature was affected by harvesting with a significantly higher number of days with minimum temperatures less than 11°C. In addition, total suspended sediment appeared to have been increased, however, statistical evidence is lacking. -- Radio telemetry of mature trout in the lakes of the study area showed that lacustrine spawning represents a large proportion of the reproduction in certain areas of the watershed. This has rarely been documented in ... |
format |
Thesis |
author |
McCarthy, James H. |
spellingShingle |
McCarthy, James H. Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland |
author_facet |
McCarthy, James H. |
author_sort |
McCarthy, James H. |
title |
Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland |
title_short |
Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland |
title_full |
Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland |
title_fullStr |
Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland |
title_full_unstemmed |
Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland |
title_sort |
brook trout (salvelinus fontinalis mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the copper lake watershed, corner brook, newfoundland |
publisher |
Memorial University of Newfoundland |
publishDate |
1997 |
url |
https://research.library.mun.ca/4131/ https://research.library.mun.ca/4131/1/McCarthy_JamesH.pdf https://research.library.mun.ca/4131/3/McCarthy_JamesH.pdf |
long_lat |
ENVELOPE(164.000,164.000,-84.583,-84.583) |
geographic |
Corner Brook Storm Peak |
geographic_facet |
Corner Brook Storm Peak |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://research.library.mun.ca/4131/1/McCarthy_JamesH.pdf https://research.library.mun.ca/4131/3/McCarthy_JamesH.pdf McCarthy, James H. <https://research.library.mun.ca/view/creator_az/McCarthy=3AJames_H=2E=3A=3A.html> (1997) Brook trout (Salvelinus fontinalis Mitchell) movement, habitat use, and potential impacts of forest harvesting activity in the Copper Lake Watershed, Corner Brook, Newfoundland. Masters thesis, Memorial University of Newfoundland. |
op_rights |
thesis_license |
_version_ |
1778529311755599872 |