Interactive effects of ocean acidification with other environmental drivers on marine plankton
Planktonic organisms form the base of the marine food web and may be impacted by environmental change in many ways. The interactive effects of multiple, simultaneous climate-driven changes on these organisms are not well understood. This dissertation examined the impacts of ocean acidification in co...
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ftdatacite:10.7916/d81278pz 2023-05-15T17:08:03+02:00 Interactive effects of ocean acidification with other environmental drivers on marine plankton Bausch, Alexandra Renee 2018 https://dx.doi.org/10.7916/d81278pz https://academiccommons.columbia.edu/doi/10.7916/D81278PZ unknown Columbia University Marine biology Marine ecology Chemical oceanography Biogeochemistry Ocean acidification Marine plankton Theses Text article-journal ScholarlyArticle 2018 ftdatacite https://doi.org/10.7916/d81278pz 2021-11-05T12:55:41Z Planktonic organisms form the base of the marine food web and may be impacted by environmental change in many ways. The interactive effects of multiple, simultaneous climate-driven changes on these organisms are not well understood. This dissertation examined the impacts of ocean acidification in combination with other environmental stressors on marine plankton and determined spatial patterns of one of these potential interactive drivers. Chapter 2 investigated the synergistic effects of ocean acidification and hypoxia on the harmful dinoflagellate Amphidinium carterae. Findings indicated that empirical studies may be crucial to accurately predict organismal responses to multi-stressors. Results also suggested that photorespiration may serve a previously unrecognized role in dinoflagellate metabolism. Chapter 3 examined the combined effects of ocean acidification and lithogenic trace metals on the growth of another harmful dinoflagellate, Cochlodinium polykrikoides. Results indicated that high suspended sediment loads may deliver toxic concentrations of trace elements to marine phytoplankton in acidified coastal ecosystems. Chapter 4 examined the interactive effects of ocean acidification and bacteria on the severity and extent of dissolution in the shells of larval gastropods and the adult pteropod Limacina helicina. Research findings indicated that microbial communities on the shell surfaces of some planktonic molluscs may mediate certain types of shell dissolution in acidified, upwelled waters. Chapter 5 explored the use of thorium isotope fluxes as a proxy for dust and lithogenic iron in the Indian Ocean. Results suggested that the gradient of dust fluxes in the region could impose thresholds for biological productivity. Together, these interdisciplinary studies demonstrate coupled biological and chemical changes in marine ecosystems as a result of increased anthropogenic environmental change. Thesis Limacina helicina Ocean acidification DataCite Metadata Store (German National Library of Science and Technology) Indian |
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Marine biology Marine ecology Chemical oceanography Biogeochemistry Ocean acidification Marine plankton |
spellingShingle |
Marine biology Marine ecology Chemical oceanography Biogeochemistry Ocean acidification Marine plankton Bausch, Alexandra Renee Interactive effects of ocean acidification with other environmental drivers on marine plankton |
topic_facet |
Marine biology Marine ecology Chemical oceanography Biogeochemistry Ocean acidification Marine plankton |
description |
Planktonic organisms form the base of the marine food web and may be impacted by environmental change in many ways. The interactive effects of multiple, simultaneous climate-driven changes on these organisms are not well understood. This dissertation examined the impacts of ocean acidification in combination with other environmental stressors on marine plankton and determined spatial patterns of one of these potential interactive drivers. Chapter 2 investigated the synergistic effects of ocean acidification and hypoxia on the harmful dinoflagellate Amphidinium carterae. Findings indicated that empirical studies may be crucial to accurately predict organismal responses to multi-stressors. Results also suggested that photorespiration may serve a previously unrecognized role in dinoflagellate metabolism. Chapter 3 examined the combined effects of ocean acidification and lithogenic trace metals on the growth of another harmful dinoflagellate, Cochlodinium polykrikoides. Results indicated that high suspended sediment loads may deliver toxic concentrations of trace elements to marine phytoplankton in acidified coastal ecosystems. Chapter 4 examined the interactive effects of ocean acidification and bacteria on the severity and extent of dissolution in the shells of larval gastropods and the adult pteropod Limacina helicina. Research findings indicated that microbial communities on the shell surfaces of some planktonic molluscs may mediate certain types of shell dissolution in acidified, upwelled waters. Chapter 5 explored the use of thorium isotope fluxes as a proxy for dust and lithogenic iron in the Indian Ocean. Results suggested that the gradient of dust fluxes in the region could impose thresholds for biological productivity. Together, these interdisciplinary studies demonstrate coupled biological and chemical changes in marine ecosystems as a result of increased anthropogenic environmental change. |
format |
Thesis |
author |
Bausch, Alexandra Renee |
author_facet |
Bausch, Alexandra Renee |
author_sort |
Bausch, Alexandra Renee |
title |
Interactive effects of ocean acidification with other environmental drivers on marine plankton |
title_short |
Interactive effects of ocean acidification with other environmental drivers on marine plankton |
title_full |
Interactive effects of ocean acidification with other environmental drivers on marine plankton |
title_fullStr |
Interactive effects of ocean acidification with other environmental drivers on marine plankton |
title_full_unstemmed |
Interactive effects of ocean acidification with other environmental drivers on marine plankton |
title_sort |
interactive effects of ocean acidification with other environmental drivers on marine plankton |
publisher |
Columbia University |
publishDate |
2018 |
url |
https://dx.doi.org/10.7916/d81278pz https://academiccommons.columbia.edu/doi/10.7916/D81278PZ |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Limacina helicina Ocean acidification |
genre_facet |
Limacina helicina Ocean acidification |
op_doi |
https://doi.org/10.7916/d81278pz |
_version_ |
1766063603217072128 |