Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change
Climate change presents multiple stressors that are impacting marine life. As carbon dioxide emissions continue to increase in the atmosphere, atmospheric and sea water temperatures increase. In addition, more carbon dioxide is absorbed into the oceans, reducing pH and aragonite saturation state, re...
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ftoregonstate:ir.library.oregonstate.edu:z603r563w 2023-06-11T04:11:11+02:00 Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change Burton, Andrea R. Barreto, Felipe S. Burke, Molly Chan, Francis Langdon, Chris Ramsey, Stephen Integrative Biology https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/z603r563w English [eng] eng Oregon State University https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/z603r563w All rights reserved Dissertation ftoregonstate 2023-05-07T17:49:46Z Climate change presents multiple stressors that are impacting marine life. As carbon dioxide emissions continue to increase in the atmosphere, atmospheric and sea water temperatures increase. In addition, more carbon dioxide is absorbed into the oceans, reducing pH and aragonite saturation state, resulting in ocean acidification (OA). Tightly coupled with OA is hypoxia due to deep stratified sea water becoming increasingly acidified and deoxygenated. The effects of these climate stressors have been studied in detail for only a few marine animal models. However, there are still many taxa and developmental stages in which we know very little about the impacts. Using genomic techniques, we examine the adaptive potential of three local marine invertebrates under three different climate stressors: marine disease exacerbated by thermal stress, OA, and combined stressors OA with hypoxia (OAH). As sea water temperatures rise, the prevalence of marine diseases increases, as seen in the sea star wasting syndrome (SSWS). The causation of SSWS is still widely debated; however reduced susceptibility to SSWS could aid in understanding disease progression. By examining genetic variation in Pisaster ochraceous collected during the SSWS outbreak, we observed weak separation between symptomatic and asymptomatic individuals. OA has been widely studied in many marine organisms, including Crassostrea gigas. However, limited studies have parsed the effects of OA during settlement, with no studies assessing the functionality of settlement and how it is impacted by OA. We investigated the effects of OA on settlement and gene expression during the transition from larval to juvenile stages in Pacific oysters. While OA and hypoxia are common climate stressors examined, the combined effects have scarcely examined. Further, the impacts of OAH have been narrowly focused on a select few species, with many economically important organisms having no baseline information on how they will persist as OAH severity increases. To address these gaps ... Doctoral or Postdoctoral Thesis Crassostrea gigas Ocean acidification ScholarsArchive@OSU (Oregon State University) Pacific |
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English |
description |
Climate change presents multiple stressors that are impacting marine life. As carbon dioxide emissions continue to increase in the atmosphere, atmospheric and sea water temperatures increase. In addition, more carbon dioxide is absorbed into the oceans, reducing pH and aragonite saturation state, resulting in ocean acidification (OA). Tightly coupled with OA is hypoxia due to deep stratified sea water becoming increasingly acidified and deoxygenated. The effects of these climate stressors have been studied in detail for only a few marine animal models. However, there are still many taxa and developmental stages in which we know very little about the impacts. Using genomic techniques, we examine the adaptive potential of three local marine invertebrates under three different climate stressors: marine disease exacerbated by thermal stress, OA, and combined stressors OA with hypoxia (OAH). As sea water temperatures rise, the prevalence of marine diseases increases, as seen in the sea star wasting syndrome (SSWS). The causation of SSWS is still widely debated; however reduced susceptibility to SSWS could aid in understanding disease progression. By examining genetic variation in Pisaster ochraceous collected during the SSWS outbreak, we observed weak separation between symptomatic and asymptomatic individuals. OA has been widely studied in many marine organisms, including Crassostrea gigas. However, limited studies have parsed the effects of OA during settlement, with no studies assessing the functionality of settlement and how it is impacted by OA. We investigated the effects of OA on settlement and gene expression during the transition from larval to juvenile stages in Pacific oysters. While OA and hypoxia are common climate stressors examined, the combined effects have scarcely examined. Further, the impacts of OAH have been narrowly focused on a select few species, with many economically important organisms having no baseline information on how they will persist as OAH severity increases. To address these gaps ... |
author2 |
Barreto, Felipe S. Burke, Molly Chan, Francis Langdon, Chris Ramsey, Stephen Integrative Biology |
format |
Doctoral or Postdoctoral Thesis |
author |
Burton, Andrea R. |
spellingShingle |
Burton, Andrea R. Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change |
author_facet |
Burton, Andrea R. |
author_sort |
Burton, Andrea R. |
title |
Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change |
title_short |
Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change |
title_full |
Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change |
title_fullStr |
Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change |
title_full_unstemmed |
Adaptive Potential of Coastal Invertebrates to Environmental Stressors and Climate Change |
title_sort |
adaptive potential of coastal invertebrates to environmental stressors and climate change |
publisher |
Oregon State University |
url |
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/z603r563w |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Ocean acidification |
genre_facet |
Crassostrea gigas Ocean acidification |
op_relation |
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/z603r563w |
op_rights |
All rights reserved |
_version_ |
1768386094876852224 |