The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change
The papers I, II and III of this thesis are not available in Munin. Paper I: Bailey, A., Thor, P., Browman, H. I., Fields, D. M., Runge, J., Vermont, A., Bjelland, R., Thompson, C., Shema, S., Durif, C. M. F., Hop, H.: “Early life stages of the Arctic copepod Calanus glacialis are unaffected by incr...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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UiT The Arctic University of Norway
2017
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Subjects: | |
Online Access: | https://hdl.handle.net/10037/10963 |
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ftunivtroemsoe:oai:munin.uit.no:10037/10963 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Bioinformatikk: 475 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Bioinformatics: 475 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 DOKTOR-002 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Bioinformatikk: 475 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Bioinformatics: 475 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 DOKTOR-002 Bailey, Allison Michelle The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Bioinformatikk: 475 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Bioinformatics: 475 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 DOKTOR-002 |
description |
The papers I, II and III of this thesis are not available in Munin. Paper I: Bailey, A., Thor, P., Browman, H. I., Fields, D. M., Runge, J., Vermont, A., Bjelland, R., Thompson, C., Shema, S., Durif, C. M. F., Hop, H.: “Early life stages of the Arctic copepod Calanus glacialis are unaffected by increased seawater pCO2”. Available in ICES Journal of Marine Science 2016. Paper II: Bailey, A., De Wit, P., Thor, P., Browman, H. I., Bjelland, R., Shema, S., Fields, D. M., Runge, J. A., Thompson, C., Hop, H.: “Regulation of gene expression underlies tolerance of the Arctic copepod Calanus glacialis to CO2-acidified seawater”. (Manuscript). Paper IV: Thor, P., Bailey, A., Dupont, S., Calosi, P., Søreide, J., De Wit, P., Guscelli, E., Loubet-Sartrou, L., Deichmann, I., Candee, M., Svensen, C., King, A. L., Bellerby, R. G.J.: “Potential for rescue from future ocean acidification by extant physiological differences among distinct Arctic copepod populations”. (Manuscript). Uptake of anthropogenic carbon dioxide (CO2) into the world’s oceans is increasing seawater acidity in a process termed ocean acidification. This is predicted to have harmful effects on a variety of marine organisms. With the greatest and fastest changes in pH expected to occur the Arctic seas over the next 100 years, the need for understanding the effects of low pH on Arctic marine organisms is pressing. This thesis examines the effects of projected levels of ocean acidification on the physiology of a key component of the Arctic marine ecosystem, the copepod Calanus glacialis, using molecular, organismal, and evolutionary methodologies to investigate the effects of low pH throughout its lifespan, in combination with other stressors (food availability) and across geographically distant sub-populations (to predict their capacity for adaptation or acclimation in the future). Young stages of the copepod, potentially the most sensitive, were tolerant to realistic pH levels for future ocean acidification: the nauplii developed successfully from egg to naupliar stage N6 at all four pH treatments investigated (pH 7.5, 7,7, 7.9 and 8.05). Gene expression N6 nauplii supported the organismal-level tolerance observed, indicating only mild gene expression and no stress response to low pH. Detrimental effects were found, however, in the young copepodite stages (C2-C4), which indicated an energetic cost at low pH. However, differences in this response between geographically distant, and potentially genetically isolated sub-populations showed that those that lived in a low pH environment tolerated it better, indicating that C. glacialis may be able to alleviate these detrimental effects over time. C. glacialis populations face a myriad of environmental changes driven by global warming and ocean acidification in the Arctic, and while they may experience declines due to the interactions of these multiple stressors, they likely will not experience declines primarily due to ocean acidification. |
format |
Doctoral or Postdoctoral Thesis |
author |
Bailey, Allison Michelle |
author_facet |
Bailey, Allison Michelle |
author_sort |
Bailey, Allison Michelle |
title |
The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change |
title_short |
The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change |
title_full |
The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change |
title_fullStr |
The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change |
title_full_unstemmed |
The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change |
title_sort |
fate of a key arctic copepod in future ocean acidification: integrating molecular, organismal, and evolutionary thinking in the face of climate change |
publisher |
UiT The Arctic University of Norway |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/10963 |
long_lat |
ENVELOPE(-66.267,-66.267,-66.917,-66.917) |
geographic |
Arctic Loubet |
geographic_facet |
Arctic Loubet |
genre |
Arctic copepod Arctic Calanus glacialis Climate change Global warming Ocean acidification |
genre_facet |
Arctic copepod Arctic Calanus glacialis Climate change Global warming Ocean acidification |
op_relation |
978-82-8266-138-6 https://hdl.handle.net/10037/10963 |
op_rights |
openAccess Copyright 2017 The Author(s) |
_version_ |
1766304384275185664 |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/10963 2023-05-15T14:30:33+02:00 The fate of a key Arctic copepod in future ocean acidification: Integrating molecular, organismal, and evolutionary thinking in the face of climate change Bailey, Allison Michelle 2017-05-05 https://hdl.handle.net/10037/10963 eng eng UiT The Arctic University of Norway UiT Norges arktiske universitet 978-82-8266-138-6 https://hdl.handle.net/10037/10963 openAccess Copyright 2017 The Author(s) VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Bioinformatikk: 475 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Bioinformatics: 475 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 DOKTOR-002 Doctoral thesis Doktorgradsavhandling 2017 ftunivtroemsoe 2021-06-25T17:55:13Z The papers I, II and III of this thesis are not available in Munin. Paper I: Bailey, A., Thor, P., Browman, H. I., Fields, D. M., Runge, J., Vermont, A., Bjelland, R., Thompson, C., Shema, S., Durif, C. M. F., Hop, H.: “Early life stages of the Arctic copepod Calanus glacialis are unaffected by increased seawater pCO2”. Available in ICES Journal of Marine Science 2016. Paper II: Bailey, A., De Wit, P., Thor, P., Browman, H. I., Bjelland, R., Shema, S., Fields, D. M., Runge, J. A., Thompson, C., Hop, H.: “Regulation of gene expression underlies tolerance of the Arctic copepod Calanus glacialis to CO2-acidified seawater”. (Manuscript). Paper IV: Thor, P., Bailey, A., Dupont, S., Calosi, P., Søreide, J., De Wit, P., Guscelli, E., Loubet-Sartrou, L., Deichmann, I., Candee, M., Svensen, C., King, A. L., Bellerby, R. G.J.: “Potential for rescue from future ocean acidification by extant physiological differences among distinct Arctic copepod populations”. (Manuscript). Uptake of anthropogenic carbon dioxide (CO2) into the world’s oceans is increasing seawater acidity in a process termed ocean acidification. This is predicted to have harmful effects on a variety of marine organisms. With the greatest and fastest changes in pH expected to occur the Arctic seas over the next 100 years, the need for understanding the effects of low pH on Arctic marine organisms is pressing. This thesis examines the effects of projected levels of ocean acidification on the physiology of a key component of the Arctic marine ecosystem, the copepod Calanus glacialis, using molecular, organismal, and evolutionary methodologies to investigate the effects of low pH throughout its lifespan, in combination with other stressors (food availability) and across geographically distant sub-populations (to predict their capacity for adaptation or acclimation in the future). Young stages of the copepod, potentially the most sensitive, were tolerant to realistic pH levels for future ocean acidification: the nauplii developed successfully from egg to naupliar stage N6 at all four pH treatments investigated (pH 7.5, 7,7, 7.9 and 8.05). Gene expression N6 nauplii supported the organismal-level tolerance observed, indicating only mild gene expression and no stress response to low pH. Detrimental effects were found, however, in the young copepodite stages (C2-C4), which indicated an energetic cost at low pH. However, differences in this response between geographically distant, and potentially genetically isolated sub-populations showed that those that lived in a low pH environment tolerated it better, indicating that C. glacialis may be able to alleviate these detrimental effects over time. C. glacialis populations face a myriad of environmental changes driven by global warming and ocean acidification in the Arctic, and while they may experience declines due to the interactions of these multiple stressors, they likely will not experience declines primarily due to ocean acidification. Doctoral or Postdoctoral Thesis Arctic copepod Arctic Calanus glacialis Climate change Global warming Ocean acidification University of Tromsø: Munin Open Research Archive Arctic Loubet ENVELOPE(-66.267,-66.267,-66.917,-66.917) |