Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site
Lack of information about carbonate chemistry in inshore waters is a ‘knowledge gap’ in assessing the impacts of changing carbonate chemistry on the marine environment. Assessing the response of calcifying phytoplankton to this changing carbonate chemistry requires a greater understanding of tempora...
Published in: | Estuarine, Coastal and Shelf Science |
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Language: | English |
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ftsouthampton:oai:eprints.soton.ac.uk:419809 2023-07-30T04:06:06+02:00 Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site León, Pablo Walsham, Pam Bresnan, Eileen Hartman, Susan E. Hughes, Sarah Mackenzie, Kevin Webster, Lynda 2018-03-05 text https://eprints.soton.ac.uk/419809/ https://eprints.soton.ac.uk/419809/1/Hartman_2018_PiO_carbonate_shelf.pdf en English eng https://eprints.soton.ac.uk/419809/1/Hartman_2018_PiO_carbonate_shelf.pdf León, Pablo, Walsham, Pam, Bresnan, Eileen, Hartman, Susan E., Hughes, Sarah, Mackenzie, Kevin and Webster, Lynda (2018) Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site. Estuarine, Coastal and Shelf Science, 202, 302-314. (doi:10.1016/j.ecss.2018.01.011 <http://dx.doi.org/10.1016/j.ecss.2018.01.011>). cc_by_nc_nd_4 Article PeerReviewed 2018 ftsouthampton https://doi.org/10.1016/j.ecss.2018.01.011 2023-07-09T22:21:56Z Lack of information about carbonate chemistry in inshore waters is a ‘knowledge gap’ in assessing the impacts of changing carbonate chemistry on the marine environment. Assessing the response of calcifying phytoplankton to this changing carbonate chemistry requires a greater understanding of temporal variation. This study provides a description of the variability of carbonate parameters at a monitoring site in the eastern coast of Scotland. Four-years of monthly data were analysed to assess the diversity, abundance and morphometrics of coccolithophores in relation to carbonate chemistry and environmental variables. The seasonality in carbonate parameters reflected the seasonal cycle in phytoplankton activity, with higher total alkalinity concentrations and pH and lower dissolved inorganic carbon concentrations during the growing season. The dominant coccolithophore at the site was Emiliania huxleyi which showed a clear seasonal pattern, being more abundant in mid-summer when warmer and nutrient-depleted conditions restricted the annual diatom bloom. This study revealed the presence of three morphotypes of E. huxleyi, type A, type A overcalcified (type AO) and type B, which were seasonally distributed throughout the year. The less calcified form was mainly observed in spring while heavily calcified morphotypes overlapped during summer. Autumn and winter months were dominated by the most calcified form (type AO). These results indicate that the seasonal pattern of E. huxleyi morphotypes was not related to the carbonate concentration at the site. This study reflects the strong interannual variability in carbonate chemistry and the complexity associated with coccolithophore calcification, and highlights the need of long-term data to understand the potential impact of ocean acidification on calcifying phytoplankton. Article in Journal/Newspaper Ocean acidification University of Southampton: e-Prints Soton Estuarine, Coastal and Shelf Science 202 302 314 |
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Open Polar |
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University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Lack of information about carbonate chemistry in inshore waters is a ‘knowledge gap’ in assessing the impacts of changing carbonate chemistry on the marine environment. Assessing the response of calcifying phytoplankton to this changing carbonate chemistry requires a greater understanding of temporal variation. This study provides a description of the variability of carbonate parameters at a monitoring site in the eastern coast of Scotland. Four-years of monthly data were analysed to assess the diversity, abundance and morphometrics of coccolithophores in relation to carbonate chemistry and environmental variables. The seasonality in carbonate parameters reflected the seasonal cycle in phytoplankton activity, with higher total alkalinity concentrations and pH and lower dissolved inorganic carbon concentrations during the growing season. The dominant coccolithophore at the site was Emiliania huxleyi which showed a clear seasonal pattern, being more abundant in mid-summer when warmer and nutrient-depleted conditions restricted the annual diatom bloom. This study revealed the presence of three morphotypes of E. huxleyi, type A, type A overcalcified (type AO) and type B, which were seasonally distributed throughout the year. The less calcified form was mainly observed in spring while heavily calcified morphotypes overlapped during summer. Autumn and winter months were dominated by the most calcified form (type AO). These results indicate that the seasonal pattern of E. huxleyi morphotypes was not related to the carbonate concentration at the site. This study reflects the strong interannual variability in carbonate chemistry and the complexity associated with coccolithophore calcification, and highlights the need of long-term data to understand the potential impact of ocean acidification on calcifying phytoplankton. |
format |
Article in Journal/Newspaper |
author |
León, Pablo Walsham, Pam Bresnan, Eileen Hartman, Susan E. Hughes, Sarah Mackenzie, Kevin Webster, Lynda |
spellingShingle |
León, Pablo Walsham, Pam Bresnan, Eileen Hartman, Susan E. Hughes, Sarah Mackenzie, Kevin Webster, Lynda Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site |
author_facet |
León, Pablo Walsham, Pam Bresnan, Eileen Hartman, Susan E. Hughes, Sarah Mackenzie, Kevin Webster, Lynda |
author_sort |
León, Pablo |
title |
Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site |
title_short |
Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site |
title_full |
Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site |
title_fullStr |
Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site |
title_full_unstemmed |
Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site |
title_sort |
seasonal variability of the carbonate system and coccolithophore emiliania huxleyi at a scottish coastal observatory monitoring site |
publishDate |
2018 |
url |
https://eprints.soton.ac.uk/419809/ https://eprints.soton.ac.uk/419809/1/Hartman_2018_PiO_carbonate_shelf.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://eprints.soton.ac.uk/419809/1/Hartman_2018_PiO_carbonate_shelf.pdf León, Pablo, Walsham, Pam, Bresnan, Eileen, Hartman, Susan E., Hughes, Sarah, Mackenzie, Kevin and Webster, Lynda (2018) Seasonal variability of the carbonate system and coccolithophore Emiliania huxleyi at a Scottish Coastal Observatory monitoring site. Estuarine, Coastal and Shelf Science, 202, 302-314. (doi:10.1016/j.ecss.2018.01.011 <http://dx.doi.org/10.1016/j.ecss.2018.01.011>). |
op_rights |
cc_by_nc_nd_4 |
op_doi |
https://doi.org/10.1016/j.ecss.2018.01.011 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
202 |
container_start_page |
302 |
op_container_end_page |
314 |
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1772818510798389248 |