Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions
Abstract: We tested whether the thecosome pteropod Limacina helicina from Puget Sound, an urbanized estuary in the northwest continental US, experiences shell dissolution and altered mortality rates when exposed to the high CO2, low aragonite saturation state (Omega a) conditions that occur in Puget...
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ftwilliammarycol:oai:scholarworks.wm.edu:od-1626 2023-05-15T17:08:03+02:00 Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions Thibodeaub, Patricia McElhany, Paul Maher, Michael Busch, D. Shallin 2014-03-13T07:00:00Z https://scholarworks.wm.edu/od/627 https://doi.pangaea.de/10.1594/PANGAEA.844092 eng eng W&M ScholarWorks https://scholarworks.wm.edu/od/627 https://doi.pangaea.de/10.1594/PANGAEA.844092 Open Data Sets text 2014 ftwilliammarycol 2021-02-22T12:55:53Z Abstract: We tested whether the thecosome pteropod Limacina helicina from Puget Sound, an urbanized estuary in the northwest continental US, experiences shell dissolution and altered mortality rates when exposed to the high CO2, low aragonite saturation state (Omega a) conditions that occur in Puget Sound and the northeast Pacific Ocean. Five, week-long experiments were conducted in which we incubated pteropods collected from Puget Sound in four carbon chemistry conditions: current summer surface (460-500 µatm CO2, Omega a=1.59), current deep water or surface conditions during upwelling (760 and 1600-1700 µatm CO2, Omega a=1.17 and 0.56), and future deep water or surface conditions during upwelling (2800-3400 µatm CO2, Omega a=0.28). We measured shell condition using a scoring regime of five shell characteristics that capture different aspects of shell dissolution. We characterized carbon chemistry conditions in statistical analyses with Omega a, and conducted analyses considering Omega a both as a continuous dataset and as discrete treatments. Shell dissolution increased linearly as aragonite saturation state decreased. Discrete treatment comparisons indicate that shell dissolution was greater in undersaturated treatments compared to oversaturated treatments. Survival increased linearly with aragonite saturation state, though discrete treatment comparisons indicated that survival was similar in all but the lowest saturation state treatment. These results indicate that, under starvation conditions, pteropod survival may not be greatly affected by current and expected near-future aragonite saturation state in the NE Pacific, but shell dissolution may. Given that subsurface waters in Puget Sound's main basin are undersaturated with respect to aragonite in the winter and can be undersaturated in the summer, the condition and persistence of the species in this estuary warrants further study. Category: geoscientificInformation Source: Supplement to: Busch, Shallin D; Maher, Michael; Thibodeau, Patricia; McElhany, Paul; Hofmann, Gretchen E (2014): Shell Condition and Survival of Puget Sound Pteropods Are Impaired by Ocean Acidification Conditions. PLoS ONE, 9(8), e105884, https://doi.org/10.1371/journal.pone.0105884 Supplemental Information: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2015-03-12. Coverage: EVENT LABEL: * LATITUDE: 48.100000 * LONGITUDE: -122.400000 * DATE/TIME START: 2012-05-10T00:00:00 * DATE/TIME END: 2012-07-12T00:00:00 * METHOD/DEVICE: Experiment Text Limacina helicina Ocean acidification W&M ScholarWorks Pacific Hofmann ENVELOPE(160.600,160.600,-82.667,-82.667) Maher ENVELOPE(-81.183,-81.183,51.067,51.067) |
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W&M ScholarWorks |
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English |
description |
Abstract: We tested whether the thecosome pteropod Limacina helicina from Puget Sound, an urbanized estuary in the northwest continental US, experiences shell dissolution and altered mortality rates when exposed to the high CO2, low aragonite saturation state (Omega a) conditions that occur in Puget Sound and the northeast Pacific Ocean. Five, week-long experiments were conducted in which we incubated pteropods collected from Puget Sound in four carbon chemistry conditions: current summer surface (460-500 µatm CO2, Omega a=1.59), current deep water or surface conditions during upwelling (760 and 1600-1700 µatm CO2, Omega a=1.17 and 0.56), and future deep water or surface conditions during upwelling (2800-3400 µatm CO2, Omega a=0.28). We measured shell condition using a scoring regime of five shell characteristics that capture different aspects of shell dissolution. We characterized carbon chemistry conditions in statistical analyses with Omega a, and conducted analyses considering Omega a both as a continuous dataset and as discrete treatments. Shell dissolution increased linearly as aragonite saturation state decreased. Discrete treatment comparisons indicate that shell dissolution was greater in undersaturated treatments compared to oversaturated treatments. Survival increased linearly with aragonite saturation state, though discrete treatment comparisons indicated that survival was similar in all but the lowest saturation state treatment. These results indicate that, under starvation conditions, pteropod survival may not be greatly affected by current and expected near-future aragonite saturation state in the NE Pacific, but shell dissolution may. Given that subsurface waters in Puget Sound's main basin are undersaturated with respect to aragonite in the winter and can be undersaturated in the summer, the condition and persistence of the species in this estuary warrants further study. Category: geoscientificInformation Source: Supplement to: Busch, Shallin D; Maher, Michael; Thibodeau, Patricia; McElhany, Paul; Hofmann, Gretchen E (2014): Shell Condition and Survival of Puget Sound Pteropods Are Impaired by Ocean Acidification Conditions. PLoS ONE, 9(8), e105884, https://doi.org/10.1371/journal.pone.0105884 Supplemental Information: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2015-03-12. Coverage: EVENT LABEL: * LATITUDE: 48.100000 * LONGITUDE: -122.400000 * DATE/TIME START: 2012-05-10T00:00:00 * DATE/TIME END: 2012-07-12T00:00:00 * METHOD/DEVICE: Experiment |
format |
Text |
author |
Thibodeaub, Patricia McElhany, Paul Maher, Michael Busch, D. Shallin |
spellingShingle |
Thibodeaub, Patricia McElhany, Paul Maher, Michael Busch, D. Shallin Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions |
author_facet |
Thibodeaub, Patricia McElhany, Paul Maher, Michael Busch, D. Shallin |
author_sort |
Thibodeaub, Patricia |
title |
Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions |
title_short |
Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions |
title_full |
Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions |
title_fullStr |
Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions |
title_full_unstemmed |
Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions |
title_sort |
shell condition and survival of puget sound pteropods are impaired by ocean acidification conditions |
publisher |
W&M ScholarWorks |
publishDate |
2014 |
url |
https://scholarworks.wm.edu/od/627 https://doi.pangaea.de/10.1594/PANGAEA.844092 |
long_lat |
ENVELOPE(160.600,160.600,-82.667,-82.667) ENVELOPE(-81.183,-81.183,51.067,51.067) |
geographic |
Pacific Hofmann Maher |
geographic_facet |
Pacific Hofmann Maher |
genre |
Limacina helicina Ocean acidification |
genre_facet |
Limacina helicina Ocean acidification |
op_source |
Open Data Sets |
op_relation |
https://scholarworks.wm.edu/od/627 https://doi.pangaea.de/10.1594/PANGAEA.844092 |
_version_ |
1766063605332049920 |