Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences
Increased anthropogenic atmospheric CO2 concentrations have resulted in ocean warming and alterations in ocean carbonate chemistry, decreasing seawater pH (ocean acidification). The combination of ocean warming and acidification (OWA) may alter trophic interactions in marine benthic communities alon...
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PANGAEA
2017
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.892654 https://doi.org/10.1594/PANGAEA.892654 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.892654 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard deviation Animalia Antarctic Aragonite saturation state Arthropoda Behaviour Benthic animals Benthos Bicarbonate ion Biomass/Abundance/Elemental composition Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Date Desmarestia anceps Desmarestia menziesii EXP Experiment Experiment duration Feeding rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gondogeneia antarctica Identification Laboratory experiment Lipids Macroalgae Mass Mass change OA-ICC Ocean Acidification International Coordination Centre |
spellingShingle |
Alkalinity total standard deviation Animalia Antarctic Aragonite saturation state Arthropoda Behaviour Benthic animals Benthos Bicarbonate ion Biomass/Abundance/Elemental composition Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Date Desmarestia anceps Desmarestia menziesii EXP Experiment Experiment duration Feeding rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gondogeneia antarctica Identification Laboratory experiment Lipids Macroalgae Mass Mass change OA-ICC Ocean Acidification International Coordination Centre Schram, Julie B Schoenrock, Kathryn M McClintock, James B Amsler, Charles D Angus, Robert A Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
topic_facet |
Alkalinity total standard deviation Animalia Antarctic Aragonite saturation state Arthropoda Behaviour Benthic animals Benthos Bicarbonate ion Biomass/Abundance/Elemental composition Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Date Desmarestia anceps Desmarestia menziesii EXP Experiment Experiment duration Feeding rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gondogeneia antarctica Identification Laboratory experiment Lipids Macroalgae Mass Mass change OA-ICC Ocean Acidification International Coordination Centre |
description |
Increased anthropogenic atmospheric CO2 concentrations have resulted in ocean warming and alterations in ocean carbonate chemistry, decreasing seawater pH (ocean acidification). The combination of ocean warming and acidification (OWA) may alter trophic interactions in marine benthic communities along the western Antarctic Peninsula (WAP). Abundant and diverse macroalgae–grazer assemblages, dominated by macroalgae (e.g. chemically defended Desmarestia anceps and D. menziesii) and gammarid amphipods (e.g. Gondogeneia antarctica), occur on the nearshore benthos along the WAP. In the present study, the amphipod G. antarctica and macroalgae D. anceps and D. menziesii were exposed for 39 and 79 d, respectively, to combinations of current and predicted near-future temperature (1.5 and 3.5°C, respectively) and pH (8.0 and 7.6, respectively). Protein and lipid levels of macroalgal tissues were quantified, and 5-way choice amphipod feeding assays were performed with lyophilized macroalgal tissues collected at time zero and following exposure to the 4 temperature-pH treatments. For D. anceps, we found a significant interactive temperature-pH effect on lipid levels and significantly lower protein levels at reduced pH. In contrast, tissues of D. menziesii exhibited significantly greater lipid levels after exposure to reduced pH, but there was no temperature effect on lipid or protein levels. Despite shifts in macroalgal biochemical composition, there were no changes in amphipod feeding preferences. Our results indicate that despite altered macroalgal nutritional quality under OWA, both macroalgae retained their ability to deter amphipod feeding. This deterrent capacity could become an important contributor to net community resistance of macroalgae-mesograzer assemblages of the WAP to predicted OWA. |
format |
Dataset |
author |
Schram, Julie B Schoenrock, Kathryn M McClintock, James B Amsler, Charles D Angus, Robert A |
author_facet |
Schram, Julie B Schoenrock, Kathryn M McClintock, James B Amsler, Charles D Angus, Robert A |
author_sort |
Schram, Julie B |
title |
Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
title_short |
Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
title_full |
Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
title_fullStr |
Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
title_full_unstemmed |
Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
title_sort |
seawater carbonate chemistry and antarctic macroalgal biochemical composition and amphipod grazer feeding preferences |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.892654 https://doi.org/10.1594/PANGAEA.892654 |
op_coverage |
LATITUDE: -64.766670 * LONGITUDE: -64.050000 * DATE/TIME START: 2013-03-01T00:00:00 * DATE/TIME END: 2013-03-31T00:00:00 |
long_lat |
ENVELOPE(-64.050000,-64.050000,-64.766670,-64.766670) |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ocean acidification |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ocean acidification |
op_source |
Supplement to: Schram, Julie B; Schoenrock, Kathryn M; McClintock, James B; Amsler, Charles D; Angus, Robert A (2017): Ocean warming and acidification alter Antarctic macroalgal biochemical composition but not amphipod grazer feeding preferences. Marine Ecology Progress Series, 581, 45-56, https://doi.org/10.3354/meps12308 |
op_relation |
Schram, Julie B (2017): Data from Schram et al. 2017 MEPS. U.S. Antarctic Program Data Center, http://www.usap-dc.org/view/dataset/601062 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.892654 https://doi.org/10.1594/PANGAEA.892654 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.892654 https://doi.org/10.3354/meps12308 |
_version_ |
1766276451963764736 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.892654 2023-05-15T14:04:57+02:00 Seawater carbonate chemistry and Antarctic macroalgal biochemical composition and amphipod grazer feeding preferences Schram, Julie B Schoenrock, Kathryn M McClintock, James B Amsler, Charles D Angus, Robert A LATITUDE: -64.766670 * LONGITUDE: -64.050000 * DATE/TIME START: 2013-03-01T00:00:00 * DATE/TIME END: 2013-03-31T00:00:00 2017-07-26 text/tab-separated-values, 21313 data points https://doi.pangaea.de/10.1594/PANGAEA.892654 https://doi.org/10.1594/PANGAEA.892654 en eng PANGAEA Schram, Julie B (2017): Data from Schram et al. 2017 MEPS. U.S. Antarctic Program Data Center, http://www.usap-dc.org/view/dataset/601062 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.892654 https://doi.org/10.1594/PANGAEA.892654 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Schram, Julie B; Schoenrock, Kathryn M; McClintock, James B; Amsler, Charles D; Angus, Robert A (2017): Ocean warming and acidification alter Antarctic macroalgal biochemical composition but not amphipod grazer feeding preferences. Marine Ecology Progress Series, 581, 45-56, https://doi.org/10.3354/meps12308 Alkalinity total standard deviation Animalia Antarctic Aragonite saturation state Arthropoda Behaviour Benthic animals Benthos Bicarbonate ion Biomass/Abundance/Elemental composition Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Date Desmarestia anceps Desmarestia menziesii EXP Experiment Experiment duration Feeding rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gondogeneia antarctica Identification Laboratory experiment Lipids Macroalgae Mass Mass change OA-ICC Ocean Acidification International Coordination Centre Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.892654 https://doi.org/10.3354/meps12308 2023-01-20T09:11:21Z Increased anthropogenic atmospheric CO2 concentrations have resulted in ocean warming and alterations in ocean carbonate chemistry, decreasing seawater pH (ocean acidification). The combination of ocean warming and acidification (OWA) may alter trophic interactions in marine benthic communities along the western Antarctic Peninsula (WAP). Abundant and diverse macroalgae–grazer assemblages, dominated by macroalgae (e.g. chemically defended Desmarestia anceps and D. menziesii) and gammarid amphipods (e.g. Gondogeneia antarctica), occur on the nearshore benthos along the WAP. In the present study, the amphipod G. antarctica and macroalgae D. anceps and D. menziesii were exposed for 39 and 79 d, respectively, to combinations of current and predicted near-future temperature (1.5 and 3.5°C, respectively) and pH (8.0 and 7.6, respectively). Protein and lipid levels of macroalgal tissues were quantified, and 5-way choice amphipod feeding assays were performed with lyophilized macroalgal tissues collected at time zero and following exposure to the 4 temperature-pH treatments. For D. anceps, we found a significant interactive temperature-pH effect on lipid levels and significantly lower protein levels at reduced pH. In contrast, tissues of D. menziesii exhibited significantly greater lipid levels after exposure to reduced pH, but there was no temperature effect on lipid or protein levels. Despite shifts in macroalgal biochemical composition, there were no changes in amphipod feeding preferences. Our results indicate that despite altered macroalgal nutritional quality under OWA, both macroalgae retained their ability to deter amphipod feeding. This deterrent capacity could become an important contributor to net community resistance of macroalgae-mesograzer assemblages of the WAP to predicted OWA. Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Antarctic Peninsula ENVELOPE(-64.050000,-64.050000,-64.766670,-64.766670) |