Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii
The Arctic region is undergoing rapid and significant changes, characterized by high rates of acidification and warming. These transformations prompt critical questions about the resilience of marine communities in the face of environmental change. In the Arctic, marine zooplankton and in particular...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2023.1240673 https://doaj.org/article/a19381d503094fffb983c9aaa301dc39 |
id |
ftdoajarticles:oai:doaj.org/article:a19381d503094fffb983c9aaa301dc39 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:a19381d503094fffb983c9aaa301dc39 2023-11-12T04:10:26+01:00 Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii Nadjejda Espinel-Velasco Christine Gawinski Doreen Kohlbach Vanessa Pitusi Martin Graeve Haakon Hop 2023-10-01T00:00:00Z https://doi.org/10.3389/fmars.2023.1240673 https://doaj.org/article/a19381d503094fffb983c9aaa301dc39 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2023.1240673/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1240673 https://doaj.org/article/a19381d503094fffb983c9aaa301dc39 Frontiers in Marine Science, Vol 10 (2023) Arctic copepods early-life stages metabolism energy reserves Barents Sea environmental drivers Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2023 ftdoajarticles https://doi.org/10.3389/fmars.2023.1240673 2023-10-29T00:38:24Z The Arctic region is undergoing rapid and significant changes, characterized by high rates of acidification and warming. These transformations prompt critical questions about the resilience of marine communities in the face of environmental change. In the Arctic, marine zooplankton and in particular calanoid copepods play a vital role in the food web. Changes in environmental conditions could disrupt zooplankton communities, posing detrimental consequences for the entire ecosystem. Copepod early-life stages have been shown to be particularly sensitive to environmental stressors since they represent a bottleneck in the life cycle. Here, we investigated the responses of 4-day old Calanus hyperboreus nauplii when exposed to acidification (pH 7.5 and 8.1) and warming (0 and 3°C), both independently and in combination. Naupliar respiration rates increased when exposed to a combination of acidification and warming, but not when exposed to the stressors individually. Moreover, we found no discernible differences in lipid content and fatty acid (FA) composition of the nauplii across the different experimental treatments. Wax esters accounted for approximately 75% of the lipid reserves, and high amounts of long chain fatty acids 20:1 and 22:1, crucial for the reproduction cycle in copepods, were also detected. Our results indicate a sensitivity of these nauplii to a combination of acidification and warming, but not to the individual stressors, aligning with a growing body of evidence from related studies. This study sheds light on the potential implications of global change for Arctic copepod populations by elucidating the responses of early-life stages to these environmental stressors. Article in Journal/Newspaper Arctic copepod Arctic Barents Sea Calanus hyperboreus Ocean acidification Zooplankton Copepods Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic copepods early-life stages metabolism energy reserves Barents Sea environmental drivers Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Arctic copepods early-life stages metabolism energy reserves Barents Sea environmental drivers Science Q General. Including nature conservation geographical distribution QH1-199.5 Nadjejda Espinel-Velasco Christine Gawinski Doreen Kohlbach Vanessa Pitusi Martin Graeve Haakon Hop Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii |
topic_facet |
Arctic copepods early-life stages metabolism energy reserves Barents Sea environmental drivers Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The Arctic region is undergoing rapid and significant changes, characterized by high rates of acidification and warming. These transformations prompt critical questions about the resilience of marine communities in the face of environmental change. In the Arctic, marine zooplankton and in particular calanoid copepods play a vital role in the food web. Changes in environmental conditions could disrupt zooplankton communities, posing detrimental consequences for the entire ecosystem. Copepod early-life stages have been shown to be particularly sensitive to environmental stressors since they represent a bottleneck in the life cycle. Here, we investigated the responses of 4-day old Calanus hyperboreus nauplii when exposed to acidification (pH 7.5 and 8.1) and warming (0 and 3°C), both independently and in combination. Naupliar respiration rates increased when exposed to a combination of acidification and warming, but not when exposed to the stressors individually. Moreover, we found no discernible differences in lipid content and fatty acid (FA) composition of the nauplii across the different experimental treatments. Wax esters accounted for approximately 75% of the lipid reserves, and high amounts of long chain fatty acids 20:1 and 22:1, crucial for the reproduction cycle in copepods, were also detected. Our results indicate a sensitivity of these nauplii to a combination of acidification and warming, but not to the individual stressors, aligning with a growing body of evidence from related studies. This study sheds light on the potential implications of global change for Arctic copepod populations by elucidating the responses of early-life stages to these environmental stressors. |
format |
Article in Journal/Newspaper |
author |
Nadjejda Espinel-Velasco Christine Gawinski Doreen Kohlbach Vanessa Pitusi Martin Graeve Haakon Hop |
author_facet |
Nadjejda Espinel-Velasco Christine Gawinski Doreen Kohlbach Vanessa Pitusi Martin Graeve Haakon Hop |
author_sort |
Nadjejda Espinel-Velasco |
title |
Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii |
title_short |
Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii |
title_full |
Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii |
title_fullStr |
Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii |
title_full_unstemmed |
Interactive effects of ocean acidification and temperature on oxygen uptake rates in Calanus hyperboreus nauplii |
title_sort |
interactive effects of ocean acidification and temperature on oxygen uptake rates in calanus hyperboreus nauplii |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1240673 https://doaj.org/article/a19381d503094fffb983c9aaa301dc39 |
genre |
Arctic copepod Arctic Barents Sea Calanus hyperboreus Ocean acidification Zooplankton Copepods |
genre_facet |
Arctic copepod Arctic Barents Sea Calanus hyperboreus Ocean acidification Zooplankton Copepods |
op_source |
Frontiers in Marine Science, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2023.1240673/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1240673 https://doaj.org/article/a19381d503094fffb983c9aaa301dc39 |
op_doi |
https://doi.org/10.3389/fmars.2023.1240673 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1782329899422318592 |