An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic
Shorthorn Sculpin (Myoxocephalus scorpius) are a common fish in the Arctic that congregate in large numbers in nearshore areas during open water periods, yet little is known about their role in arctic food webs relative to other common consumers like Arctic Cod (Boreogadus saida). This study made us...
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University of Windsor
2016
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Online Access: | https://scholar.uwindsor.ca/etd/5742 https://scholar.uwindsor.ca/context/etd/article/6742/viewcontent/Landry_uwindsor_0115O_11298.pdf |
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ftunivwindsor:oai:scholar.uwindsor.ca:etd-6742 2023-06-11T04:07:58+02:00 An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic Landry, Justin 2016-01-01T08:00:00Z application/pdf https://scholar.uwindsor.ca/etd/5742 https://scholar.uwindsor.ca/context/etd/article/6742/viewcontent/Landry_uwindsor_0115O_11298.pdf eng eng University of Windsor https://scholar.uwindsor.ca/etd/5742 https://scholar.uwindsor.ca/context/etd/article/6742/viewcontent/Landry_uwindsor_0115O_11298.pdf info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Electronic Theses and Dissertations Acoustic Telemetry Arctic Food webs Sculpin Stable Isotopes Trophic ecology info:eu-repo/semantics/masterThesis 2016 ftunivwindsor 2023-05-06T19:04:28Z Shorthorn Sculpin (Myoxocephalus scorpius) are a common fish in the Arctic that congregate in large numbers in nearshore areas during open water periods, yet little is known about their role in arctic food webs relative to other common consumers like Arctic Cod (Boreogadus saida). This study made use of stable isotope and stomach content analysis as well as acoustic telemetry to examine prey selection, diet specialization, trophic position/coupling, and movement patterns. The influence of Arctic Cod presence was also examined. Results indicate that Sculpin trophic ecology changes with total length and prey availability. Distinct movement patterns were identified that potentially represent different foraging behaviours. Sculpin changed movement patterns in the presence of high abundances of Cod, and two Cod were found in Sculpin stomachs. However, data suggests that Shorthorn Sculpin trophic ecology and movement patterns are more heavily influenced by other prey and changes in abiotic variables. Master Thesis Arctic cod Arctic Boreogadus saida University of Windsor, Ontario: Scholarship at UWindsor Arctic |
institution |
Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
English |
topic |
Acoustic Telemetry Arctic Food webs Sculpin Stable Isotopes Trophic ecology |
spellingShingle |
Acoustic Telemetry Arctic Food webs Sculpin Stable Isotopes Trophic ecology Landry, Justin An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic |
topic_facet |
Acoustic Telemetry Arctic Food webs Sculpin Stable Isotopes Trophic ecology |
description |
Shorthorn Sculpin (Myoxocephalus scorpius) are a common fish in the Arctic that congregate in large numbers in nearshore areas during open water periods, yet little is known about their role in arctic food webs relative to other common consumers like Arctic Cod (Boreogadus saida). This study made use of stable isotope and stomach content analysis as well as acoustic telemetry to examine prey selection, diet specialization, trophic position/coupling, and movement patterns. The influence of Arctic Cod presence was also examined. Results indicate that Sculpin trophic ecology changes with total length and prey availability. Distinct movement patterns were identified that potentially represent different foraging behaviours. Sculpin changed movement patterns in the presence of high abundances of Cod, and two Cod were found in Sculpin stomachs. However, data suggests that Shorthorn Sculpin trophic ecology and movement patterns are more heavily influenced by other prey and changes in abiotic variables. |
format |
Master Thesis |
author |
Landry, Justin |
author_facet |
Landry, Justin |
author_sort |
Landry, Justin |
title |
An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic |
title_short |
An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic |
title_full |
An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic |
title_fullStr |
An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic |
title_full_unstemmed |
An Integrative Approach to Examining the Trophic Ecology of a Common Benthic Fish in the High Arctic |
title_sort |
integrative approach to examining the trophic ecology of a common benthic fish in the high arctic |
publisher |
University of Windsor |
publishDate |
2016 |
url |
https://scholar.uwindsor.ca/etd/5742 https://scholar.uwindsor.ca/context/etd/article/6742/viewcontent/Landry_uwindsor_0115O_11298.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic Boreogadus saida |
genre_facet |
Arctic cod Arctic Boreogadus saida |
op_source |
Electronic Theses and Dissertations |
op_relation |
https://scholar.uwindsor.ca/etd/5742 https://scholar.uwindsor.ca/context/etd/article/6742/viewcontent/Landry_uwindsor_0115O_11298.pdf |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ |
_version_ |
1768381068133531648 |