Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa
Maintenance and Update Frequency: unknown Statement: Laboratory culture experiment, field logger deployments. Marine heatwaves are extreme events that can have profound and lasting impacts on marine species. Field observations have shown seaweeds to be highly susceptible to marine heatwaves, but the...
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Online Access: | https://doi.org/10.25959/FYDA-XB84 https://researchdata.edu.au/data-accompanying-adjustments-phyllospora-comosa/1729461 |
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ftands:oai:ands.org.au::1729461 2023-10-25T01:42:31+02:00 Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa Britton, Damon (hasPrincipalInvestigator) IMAS Data Manager (pointOfContact) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) (hasAssociationWith) Spatial: westlimit=147.238036998; southlimit=-43.4214544287; eastlimit=147.560302399; northlimit=-42.8320122638 Temporal: From 2018-01-01 to 2018-08-04 https://doi.org/10.25959/FYDA-XB84 https://researchdata.edu.au/data-accompanying-adjustments-phyllospora-comosa/1729461 unknown University of Tasmania, Australia https://researchdata.edu.au/data-accompanying-adjustments-phyllospora-comosa/1729461 cda9c168-d408-48fd-8667-dd6d4fb21129 doi:10.25959/FYDA-XB84 https://doi.org/10.25959/FYDA-XB84 Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) biota Fatty acids Global ocean change Marine heatwaves Ocean acidification Ocean warming Physiology Seaweed EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PROTISTS | MACROALGAE (SEAWEEDS) Phycology (incl. Marine Grasses) BIOLOGICAL SCIENCES PLANT BIOLOGY Marine and Estuarine Ecology (incl. Marine Ichthyology) ECOLOGY Multiple physiological parameters pH measurements dataset ftands https://doi.org/10.25959/FYDA-XB84 2023-09-25T23:44:02Z Maintenance and Update Frequency: unknown Statement: Laboratory culture experiment, field logger deployments. Marine heatwaves are extreme events that can have profound and lasting impacts on marine species. Field observations have shown seaweeds to be highly susceptible to marine heatwaves, but the physiological drivers of this susceptibility are poorly understood. Furthermore, the effects of marine heatwaves in conjunction with ocean warming and acidification are yet to be investigated. To address this knowledge gap, we conducted a laboratory culture experiment in which we tested the growth and physiological responses of Phyllospora comosa juveniles from the southern extent of its range (43 - 31° S) to marine heatwaves, ocean warming and acidification. We used a "collapsed factorial design" in which marine heatwaves were superimposed on current (today's pH and temperature) and future (pH and temperature projected by 2100) ocean conditions. Responses were tested both during the heatwaves, and after a seven-day recovery period. Heatwaves reduced net photosynthetic rates in both current and future conditions, while respiration rates were elevated under heatwaves in the current conditions only. Following the recovery period, there was little evidence of heatwaves having lasting negative effects on growth, photosynthesis or respiration. Exposure to heatwaves, future ocean conditions or both caused an increase in the degree of saturation of fatty acids. This adjustment may have counteracted negative effects of elevated temperatures by decreasing membrane fluidity, which increases at higher temperatures. Furthermore, P. comosa appeared to down-regulate the energetically expensive carbon-concentrating mechanism (CCM) in the future conditions with a reduction in δ13 C values detected in these treatments. Any saved energy arising from this down-regulation was not invested in growth and was likely invested in the adjustment of fatty acid composition. This adjustment is a mechanism by which P. comosa and other ... Dataset Ocean acidification Research Data Australia (Australian National Data Service - ANDS) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota Fatty acids Global ocean change Marine heatwaves Ocean acidification Ocean warming Physiology Seaweed EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PROTISTS | MACROALGAE (SEAWEEDS) Phycology (incl. Marine Grasses) BIOLOGICAL SCIENCES PLANT BIOLOGY Marine and Estuarine Ecology (incl. Marine Ichthyology) ECOLOGY Multiple physiological parameters pH measurements |
spellingShingle |
biota Fatty acids Global ocean change Marine heatwaves Ocean acidification Ocean warming Physiology Seaweed EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PROTISTS | MACROALGAE (SEAWEEDS) Phycology (incl. Marine Grasses) BIOLOGICAL SCIENCES PLANT BIOLOGY Marine and Estuarine Ecology (incl. Marine Ichthyology) ECOLOGY Multiple physiological parameters pH measurements Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa |
topic_facet |
biota Fatty acids Global ocean change Marine heatwaves Ocean acidification Ocean warming Physiology Seaweed EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PROTISTS | MACROALGAE (SEAWEEDS) Phycology (incl. Marine Grasses) BIOLOGICAL SCIENCES PLANT BIOLOGY Marine and Estuarine Ecology (incl. Marine Ichthyology) ECOLOGY Multiple physiological parameters pH measurements |
description |
Maintenance and Update Frequency: unknown Statement: Laboratory culture experiment, field logger deployments. Marine heatwaves are extreme events that can have profound and lasting impacts on marine species. Field observations have shown seaweeds to be highly susceptible to marine heatwaves, but the physiological drivers of this susceptibility are poorly understood. Furthermore, the effects of marine heatwaves in conjunction with ocean warming and acidification are yet to be investigated. To address this knowledge gap, we conducted a laboratory culture experiment in which we tested the growth and physiological responses of Phyllospora comosa juveniles from the southern extent of its range (43 - 31° S) to marine heatwaves, ocean warming and acidification. We used a "collapsed factorial design" in which marine heatwaves were superimposed on current (today's pH and temperature) and future (pH and temperature projected by 2100) ocean conditions. Responses were tested both during the heatwaves, and after a seven-day recovery period. Heatwaves reduced net photosynthetic rates in both current and future conditions, while respiration rates were elevated under heatwaves in the current conditions only. Following the recovery period, there was little evidence of heatwaves having lasting negative effects on growth, photosynthesis or respiration. Exposure to heatwaves, future ocean conditions or both caused an increase in the degree of saturation of fatty acids. This adjustment may have counteracted negative effects of elevated temperatures by decreasing membrane fluidity, which increases at higher temperatures. Furthermore, P. comosa appeared to down-regulate the energetically expensive carbon-concentrating mechanism (CCM) in the future conditions with a reduction in δ13 C values detected in these treatments. Any saved energy arising from this down-regulation was not invested in growth and was likely invested in the adjustment of fatty acid composition. This adjustment is a mechanism by which P. comosa and other ... |
author2 |
Britton, Damon (hasPrincipalInvestigator) IMAS Data Manager (pointOfContact) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) (hasAssociationWith) |
format |
Dataset |
title |
Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa |
title_short |
Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa |
title_full |
Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa |
title_fullStr |
Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa |
title_full_unstemmed |
Data accompanying: Adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed Phyllospora comosa |
title_sort |
data accompanying: adjustments in fatty acid composition is a mechanism that can explain resilience to marine heatwaves and future ocean conditions in the habitat-forming seaweed phyllospora comosa |
publisher |
University of Tasmania, Australia |
url |
https://doi.org/10.25959/FYDA-XB84 https://researchdata.edu.au/data-accompanying-adjustments-phyllospora-comosa/1729461 |
op_coverage |
Spatial: westlimit=147.238036998; southlimit=-43.4214544287; eastlimit=147.560302399; northlimit=-42.8320122638 Temporal: From 2018-01-01 to 2018-08-04 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) |
op_relation |
https://researchdata.edu.au/data-accompanying-adjustments-phyllospora-comosa/1729461 cda9c168-d408-48fd-8667-dd6d4fb21129 doi:10.25959/FYDA-XB84 https://doi.org/10.25959/FYDA-XB84 |
op_doi |
https://doi.org/10.25959/FYDA-XB84 |
_version_ |
1780739125854339072 |