Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment
International audience Within the frame of the Pelagic Ecosystem CO 2 Enrichment (PeECE III) experiment, reproduction and feeding of the copepod Calanus finmarchicus was monitored in relation to phytoplankton development in two mesocosms, at present 1× (350 ?atm) and ca 3× present (1050 ?atm) CO 2 c...
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ftinsu:oai:HAL:hal-00297931v1 2023-11-12T04:15:30+01:00 Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment Carotenuto, Y. Putzeys, S. Simonelli, P. Paulino, A. Meyerhöfer, M. Suffrian, K. Antia, A. Nejstgaard, J. C. Stazione Zoologica Anton Dohrn (SZN) Biological Oceanography Laboratory Facultad de Ciencias del Mar Department of Biology Leibniz-Institut für Meereswissenschaften (IFM-GEOMAR) 2007-10-25 https://hal.science/hal-00297931 https://hal.science/hal-00297931/document https://hal.science/hal-00297931/file/bgd-4-3913-2007.pdf en eng HAL CCSD European Geosciences Union hal-00297931 https://hal.science/hal-00297931 https://hal.science/hal-00297931/document https://hal.science/hal-00297931/file/bgd-4-3913-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.science/hal-00297931 Biogeosciences Discussions, 2007, 4 (5), pp.3913-3936 [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftinsu 2023-10-25T16:28:21Z International audience Within the frame of the Pelagic Ecosystem CO 2 Enrichment (PeECE III) experiment, reproduction and feeding of the copepod Calanus finmarchicus was monitored in relation to phytoplankton development in two mesocosms, at present 1× (350 ?atm) and ca 3× present (1050 ?atm) CO 2 concentrations, respectively. Both mesocosms showed rapid phytoplankton growth after the initial nutrient additions and reached maximum chlorophyll (Chl) a concentrations around day 10. Flow-cytometry and specific pigment analysis (HPLC-CHEMTAX), showed that diatoms and prymnesiophyceae ( Emiliania huxleyi (Ehux) and other nanoplankton) dominated the biomass. Feeding and egg production rates of C. finmarchicus developed similarly in both mesocosms, and were positively correlated with Chl a , Ehux, diatom and prymnesiophyceae concentrations. Although the total number of copepod nauplii recruited during the experiment was similar in 1× and 3×, significantly less nauplii were recruited in 3× during the peak of the bloom compared to in 1×. We conclude that the algae responsible for the higher biomass in 3× during the peak of the bloom (diatoms and Ehux), may have been relatively inferior food for C. finmarchicus naupliar recruitment, possibly due to a high C:N ratio (>8). Nevertheless, the 3 fold increase in CO 2 concentration did not show any clear overall effect on bulk phytoplankton or zooplankton development over the whole experiment, suggesting a more complex coupling between increased CO 2 and the nutritional status of the system. Article in Journal/Newspaper Calanus finmarchicus Institut national des sciences de l'Univers: HAL-INSU |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Carotenuto, Y. Putzeys, S. Simonelli, P. Paulino, A. Meyerhöfer, M. Suffrian, K. Antia, A. Nejstgaard, J. C. Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment |
topic_facet |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Within the frame of the Pelagic Ecosystem CO 2 Enrichment (PeECE III) experiment, reproduction and feeding of the copepod Calanus finmarchicus was monitored in relation to phytoplankton development in two mesocosms, at present 1× (350 ?atm) and ca 3× present (1050 ?atm) CO 2 concentrations, respectively. Both mesocosms showed rapid phytoplankton growth after the initial nutrient additions and reached maximum chlorophyll (Chl) a concentrations around day 10. Flow-cytometry and specific pigment analysis (HPLC-CHEMTAX), showed that diatoms and prymnesiophyceae ( Emiliania huxleyi (Ehux) and other nanoplankton) dominated the biomass. Feeding and egg production rates of C. finmarchicus developed similarly in both mesocosms, and were positively correlated with Chl a , Ehux, diatom and prymnesiophyceae concentrations. Although the total number of copepod nauplii recruited during the experiment was similar in 1× and 3×, significantly less nauplii were recruited in 3× during the peak of the bloom compared to in 1×. We conclude that the algae responsible for the higher biomass in 3× during the peak of the bloom (diatoms and Ehux), may have been relatively inferior food for C. finmarchicus naupliar recruitment, possibly due to a high C:N ratio (>8). Nevertheless, the 3 fold increase in CO 2 concentration did not show any clear overall effect on bulk phytoplankton or zooplankton development over the whole experiment, suggesting a more complex coupling between increased CO 2 and the nutritional status of the system. |
author2 |
Stazione Zoologica Anton Dohrn (SZN) Biological Oceanography Laboratory Facultad de Ciencias del Mar Department of Biology Leibniz-Institut für Meereswissenschaften (IFM-GEOMAR) |
format |
Article in Journal/Newspaper |
author |
Carotenuto, Y. Putzeys, S. Simonelli, P. Paulino, A. Meyerhöfer, M. Suffrian, K. Antia, A. Nejstgaard, J. C. |
author_facet |
Carotenuto, Y. Putzeys, S. Simonelli, P. Paulino, A. Meyerhöfer, M. Suffrian, K. Antia, A. Nejstgaard, J. C. |
author_sort |
Carotenuto, Y. |
title |
Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment |
title_short |
Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment |
title_full |
Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment |
title_fullStr |
Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment |
title_full_unstemmed |
Copepod feeding and reproduction in relation to phytoplankton development during the PeECE III mesocosm experiment |
title_sort |
copepod feeding and reproduction in relation to phytoplankton development during the peece iii mesocosm experiment |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00297931 https://hal.science/hal-00297931/document https://hal.science/hal-00297931/file/bgd-4-3913-2007.pdf |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.science/hal-00297931 Biogeosciences Discussions, 2007, 4 (5), pp.3913-3936 |
op_relation |
hal-00297931 https://hal.science/hal-00297931 https://hal.science/hal-00297931/document https://hal.science/hal-00297931/file/bgd-4-3913-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782332792105861120 |