Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum
The Arctic charr (Salvelinus alpinus) is a top predator in northern lakes and accumulates persistent lipophilic contaminants. Toxaphene, a major organochlorine contaminant in Arctic charr, is known to be acutely toxic to fish but the effects of dietary exposure have not been examined. Furthermore, l...
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McGill University
2001
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ftcanadathes:oai:collectionscanada.gc.ca:QMM.31197 2023-05-15T14:29:42+02:00 Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum Blanar, Christopher A. Curtis, Mark A. (advisor) Chan, Laurie H. M. (advisor) Master of Science (Department of Natural Resource Sciences.) 2001 application/pdf http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31197 en eng McGill University alephsysno: 001810345 proquestno: MQ70386 Theses scanned by UMI/ProQuest. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31197 All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. Arctic char -- Growth Arctic char -- Parasites Diphyllobothrium dendriticum Toxaphene -- Environmental aspects Electronic Thesis or Dissertation 2001 ftcanadathes 2014-02-16T00:51:00Z The Arctic charr (Salvelinus alpinus) is a top predator in northern lakes and accumulates persistent lipophilic contaminants. Toxaphene, a major organochlorine contaminant in Arctic charr, is known to be acutely toxic to fish but the effects of dietary exposure have not been examined. Furthermore, lake-resident Arctic charr are frequently infected with larvae of the cestode, Diphyllobothrium dendriticum. The objective of this study was to investigate the effects of toxaphene exposure on Arctic charr growth, nutritional quality, physiology, and susceptibility to infections of D. dendriticum. A preliminary experiment found no effect of toxaphene on charr visceral organ and fat weights, plasma Vitamin A and E and plasma cortisol, although dominance hierarchies within groups may have masked treatment effects. For the main experiment, hatchery-reared Arctic charr were subjected to one of four treatments: (i) a single oral dose of corn oil (control); (ii) a single oral dose of 10 mug/g wet weight toxaphene dissolved in corn oil; (iii) exposure to 15 larval D. dendriticum; and (iv) a combination of both. (Abstract shortened by UMI.) Thesis Arctic charr Arctic Salvelinus alpinus Theses Canada/Thèses Canada (Library and Archives Canada) Arctic |
institution |
Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
Arctic char -- Growth Arctic char -- Parasites Diphyllobothrium dendriticum Toxaphene -- Environmental aspects |
spellingShingle |
Arctic char -- Growth Arctic char -- Parasites Diphyllobothrium dendriticum Toxaphene -- Environmental aspects Blanar, Christopher A. Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum |
topic_facet |
Arctic char -- Growth Arctic char -- Parasites Diphyllobothrium dendriticum Toxaphene -- Environmental aspects |
description |
The Arctic charr (Salvelinus alpinus) is a top predator in northern lakes and accumulates persistent lipophilic contaminants. Toxaphene, a major organochlorine contaminant in Arctic charr, is known to be acutely toxic to fish but the effects of dietary exposure have not been examined. Furthermore, lake-resident Arctic charr are frequently infected with larvae of the cestode, Diphyllobothrium dendriticum. The objective of this study was to investigate the effects of toxaphene exposure on Arctic charr growth, nutritional quality, physiology, and susceptibility to infections of D. dendriticum. A preliminary experiment found no effect of toxaphene on charr visceral organ and fat weights, plasma Vitamin A and E and plasma cortisol, although dominance hierarchies within groups may have masked treatment effects. For the main experiment, hatchery-reared Arctic charr were subjected to one of four treatments: (i) a single oral dose of corn oil (control); (ii) a single oral dose of 10 mug/g wet weight toxaphene dissolved in corn oil; (iii) exposure to 15 larval D. dendriticum; and (iv) a combination of both. (Abstract shortened by UMI.) |
author2 |
Curtis, Mark A. (advisor) Chan, Laurie H. M. (advisor) |
format |
Thesis |
author |
Blanar, Christopher A. |
author_facet |
Blanar, Christopher A. |
author_sort |
Blanar, Christopher A. |
title |
Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum |
title_short |
Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum |
title_full |
Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum |
title_fullStr |
Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum |
title_full_unstemmed |
Growth, proximate composition and physiology of Arctic charr exposed to toxaphene and Diphyllobothrium dendriticum |
title_sort |
growth, proximate composition and physiology of arctic charr exposed to toxaphene and diphyllobothrium dendriticum |
publisher |
McGill University |
publishDate |
2001 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31197 |
op_coverage |
Master of Science (Department of Natural Resource Sciences.) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_relation |
alephsysno: 001810345 proquestno: MQ70386 Theses scanned by UMI/ProQuest. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31197 |
op_rights |
All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
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1766303656946171904 |