What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics
Stream fragmentation is considered an important factor in the persistence of many aquatic species. My research is focused on validating local and riverscape metrics of connectivity to help assist in evaluating their efficacy. I used in situ brook trout (Salvelinus fontinalis) movements in Terra Nova...
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Memorial University of Newfoundland
2014
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ftmemorialuniv:oai:research.library.mun.ca:6345 2023-10-01T03:57:36+02:00 What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics Mahlum, Shad 2014-05 application/pdf https://research.library.mun.ca/6345/ https://research.library.mun.ca/6345/1/Mahlum_Shad_Kenneth_112013_MSc.pdf https://research.library.mun.ca/6345/3/Mahlum_Shad_Kenneth_112013_MSc.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/6345/1/Mahlum_Shad_Kenneth_112013_MSc.pdf https://research.library.mun.ca/6345/3/Mahlum_Shad_Kenneth_112013_MSc.pdf Mahlum, Shad <https://research.library.mun.ca/view/creator_az/Mahlum=3AShad=3A=3A.html> (2014) What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 2014 ftmemorialuniv 2023-09-03T06:45:50Z Stream fragmentation is considered an important factor in the persistence of many aquatic species. My research is focused on validating local and riverscape metrics of connectivity to help assist in evaluating their efficacy. I used in situ brook trout (Salvelinus fontinalis) movements in Terra Nova National Park, Newfoundland, to determine the accuracy of local scale fish passability metrics and I used community assemblages in southern Ontario to evaluate a structural index used to measure the connectedness of a system. I found that local scales of passability were conservative in predicting brook trout passage and failed to consistently predict fish movement. Furthermore, I found that riverscape scale structural indices have power in explaining both community structure, species presence/absence and abundance. The results from my research will provide researchers future areas of study along with confidence in structural indices for the evaluation of watershed level connectivity metrics. Thesis Newfoundland Memorial University of Newfoundland: Research Repository |
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Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
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English |
description |
Stream fragmentation is considered an important factor in the persistence of many aquatic species. My research is focused on validating local and riverscape metrics of connectivity to help assist in evaluating their efficacy. I used in situ brook trout (Salvelinus fontinalis) movements in Terra Nova National Park, Newfoundland, to determine the accuracy of local scale fish passability metrics and I used community assemblages in southern Ontario to evaluate a structural index used to measure the connectedness of a system. I found that local scales of passability were conservative in predicting brook trout passage and failed to consistently predict fish movement. Furthermore, I found that riverscape scale structural indices have power in explaining both community structure, species presence/absence and abundance. The results from my research will provide researchers future areas of study along with confidence in structural indices for the evaluation of watershed level connectivity metrics. |
format |
Thesis |
author |
Mahlum, Shad |
spellingShingle |
Mahlum, Shad What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
author_facet |
Mahlum, Shad |
author_sort |
Mahlum, Shad |
title |
What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
title_short |
What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
title_full |
What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
title_fullStr |
What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
title_full_unstemmed |
What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
title_sort |
what comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics |
publisher |
Memorial University of Newfoundland |
publishDate |
2014 |
url |
https://research.library.mun.ca/6345/ https://research.library.mun.ca/6345/1/Mahlum_Shad_Kenneth_112013_MSc.pdf https://research.library.mun.ca/6345/3/Mahlum_Shad_Kenneth_112013_MSc.pdf |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://research.library.mun.ca/6345/1/Mahlum_Shad_Kenneth_112013_MSc.pdf https://research.library.mun.ca/6345/3/Mahlum_Shad_Kenneth_112013_MSc.pdf Mahlum, Shad <https://research.library.mun.ca/view/creator_az/Mahlum=3AShad=3A=3A.html> (2014) What comes down must go up: assessing the validity of stream connectivity techniques with the use of in situ fish movement and stream community metrics. Masters thesis, Memorial University of Newfoundland. |
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1778529371446837248 |