Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea
In order to identify how ocean acidification will influence biological interactions and fluxes among planktonic organisms and across trophic levels, a large-scale mesocosm experiment was performed in the oligotrophic Northwestern Mediterranean Sea in the framework of the European MedSeA project. Nin...
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ftnkunivathens:oai:lib.uoa.gr:uoadl:3009538 2024-02-11T10:07:29+01:00 Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea Zervoudaki, S. Krasakopoulou, E. Moutsopoulos, T. Protopapa, M. Marro, S. Gazeau, F. 2017-01-01 https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3009538 Αγγλικά English eng uoadl:3009538 https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3009538 scientific_publication_article Επιστημονική δημοσίευση - Άρθρο Περιοδικού Scientific publication - Journal Article 2017 ftnkunivathens 2024-01-18T19:00:02Z In order to identify how ocean acidification will influence biological interactions and fluxes among planktonic organisms and across trophic levels, a large-scale mesocosm experiment was performed in the oligotrophic Northwestern Mediterranean Sea in the framework of the European MedSeA project. Nine mesocosms were deployed in the Bay of Calvi (Corsica, France) in summer 2012. Six mesocosms were subjected to different levels of CO2 partial pressures (pCO2; 550, 650, 750, 850, 1000 and 1250 μatm) covering the range of atmospheric pCO2 anticipated for the end of this century depending on future emission scenarios, and the last three mesocosms were unaltered (ambient pCO2 of ∼450 μatm). During this 21-day experiment, we monitored copepod egg and naupliar stocks, estimated copepod (Acartia clausi and Centropages typicus) feeding rates and determined the abundance and taxonomic composition of the mesozooplankton community at the start and at the completion of the experiment. This community was clearly dominated by copepods and its final composition slightly varied between mesocosms most likely due to natural and experimental variability that cannot be related to CO2 conditions. The abundances of eggs and nauplii as well as feeding rates of A. clausi and C. typicus on diatoms, dinoflagellates and ciliates showed no significant differences among CO2 levels. The above findings suggest that the experimental set-up especially for the specific trophic conditions and the short duration of the experiment did not provide the information on the effect of acidification that was expected. The acidification might have an effect on planktonic communities and even worsen the problems imposed by food limitation, therefore on this short time scale experiment and under the extreme ologotrophic conditions the signal that dominates was the food limitation. © 2016 Elsevier Ltd Article in Journal/Newspaper Ocean acidification Copepods Pergamos - Library and Information Center of National and Kapodistrian University of Athens |
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Pergamos - Library and Information Center of National and Kapodistrian University of Athens |
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ftnkunivathens |
language |
English |
description |
In order to identify how ocean acidification will influence biological interactions and fluxes among planktonic organisms and across trophic levels, a large-scale mesocosm experiment was performed in the oligotrophic Northwestern Mediterranean Sea in the framework of the European MedSeA project. Nine mesocosms were deployed in the Bay of Calvi (Corsica, France) in summer 2012. Six mesocosms were subjected to different levels of CO2 partial pressures (pCO2; 550, 650, 750, 850, 1000 and 1250 μatm) covering the range of atmospheric pCO2 anticipated for the end of this century depending on future emission scenarios, and the last three mesocosms were unaltered (ambient pCO2 of ∼450 μatm). During this 21-day experiment, we monitored copepod egg and naupliar stocks, estimated copepod (Acartia clausi and Centropages typicus) feeding rates and determined the abundance and taxonomic composition of the mesozooplankton community at the start and at the completion of the experiment. This community was clearly dominated by copepods and its final composition slightly varied between mesocosms most likely due to natural and experimental variability that cannot be related to CO2 conditions. The abundances of eggs and nauplii as well as feeding rates of A. clausi and C. typicus on diatoms, dinoflagellates and ciliates showed no significant differences among CO2 levels. The above findings suggest that the experimental set-up especially for the specific trophic conditions and the short duration of the experiment did not provide the information on the effect of acidification that was expected. The acidification might have an effect on planktonic communities and even worsen the problems imposed by food limitation, therefore on this short time scale experiment and under the extreme ologotrophic conditions the signal that dominates was the food limitation. © 2016 Elsevier Ltd |
format |
Article in Journal/Newspaper |
author |
Zervoudaki, S. Krasakopoulou, E. Moutsopoulos, T. Protopapa, M. Marro, S. Gazeau, F. |
spellingShingle |
Zervoudaki, S. Krasakopoulou, E. Moutsopoulos, T. Protopapa, M. Marro, S. Gazeau, F. Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea |
author_facet |
Zervoudaki, S. Krasakopoulou, E. Moutsopoulos, T. Protopapa, M. Marro, S. Gazeau, F. |
author_sort |
Zervoudaki, S. |
title |
Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea |
title_short |
Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea |
title_full |
Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea |
title_fullStr |
Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea |
title_full_unstemmed |
Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea |
title_sort |
copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the nw mediterranean sea |
publishDate |
2017 |
url |
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3009538 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
uoadl:3009538 https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3009538 |
_version_ |
1790606064622764032 |