Water column stability and Calanus finmarchicus
Abstract Many authors have suggested that the abundance of the subarctic species Calanus finmarchicus can be influenced by the structure of the water column. Unfortunately to date, such a link has never been confirmed either experimentally or statistically. By using a macroecological approach, we in...
Published in: | Journal of Plankton Research |
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Language: | English |
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Oxford University Press
2011
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Online Access: | http://hdl.handle.net/2262/58490 https://doi.org/10.1093/plankt/FBQ091 |
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fttrinitycoll:oai:tara.tcd.ie:2262/58490 2023-05-15T15:47:53+02:00 Water column stability and Calanus finmarchicus 2011-08-11T00:48:23Z http://hdl.handle.net/2262/58490 https://doi.org/10.1093/plankt/FBQ091 en eng Oxford University Press 0142-7873 (pISSN) 1464-3774 (eISSN) 0142-7873 (ISSN) JPR-2010-033 (PII) JPR-2010-033.R1 (manuscript) JPR-2010-033.R1 (publisherID) http://hdl.handle.net/2262/58490 Journal of Plankton Research 33 1 119 doi:10.1093/plankt/FBQ091 JPR (abbrev) No 12 months Life Sciences 2011 fttrinitycoll https://doi.org/10.1093/plankt/FBQ091 2020-02-16T13:52:40Z Abstract Many authors have suggested that the abundance of the subarctic species Calanus finmarchicus can be influenced by the structure of the water column. Unfortunately to date, such a link has never been confirmed either experimentally or statistically. By using a macroecological approach, we investigated this hypothesis and showed that it varies with the developmental staged of the species. First, we implemented a new statistical procedure, based on an exponentially weighted moving average, to identify and quantify the depth and intensity of the thermocline. We applied the technique on 1,005,619 temperature profiles over the North Atlantic Ocean and provided a mapping of these two descriptors at a seasonal scale. Second, we studied the relationships between the depth and the intensity of the thermocline and Calanus finmarchicus using a biological dataset of 99,599 sampling stations. Our results suggested that the characteristics of the water column influence the spatial distribution of C. finmarchicus. The frequency in the occurrence of this species decreases when stratification rises. Our results further revealed that the effect is more pronounced on young copepodite stages. Such findings are of interest since, in a warmer world, water stratification is expected to increase, making more likely a reduction in the abundance of this key-structural species. gabriel.reygondeau@ird.fr (Reygondeau, Gabriel) Gregory.Beaugrand@univ-lille1.fr (Beaugrand, Gregory) Institut de la recherche et du devellopement, Ecologie milieu expoloite EME 212 - av. Jean Monnet--> , B.P. 171--> - 34203 - Sete - FRANCE (Reygondeau, Gabriel) Alister Hardy Foundation for Ocean Science, Citadel Hill, the Hoe - Plymouth - UNITED KINGDOM (Beaugrand, Gregory) FRANCE UNITED KINGDOM Other/Unknown Material Calanus finmarchicus North Atlantic Subarctic The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) Eme ENVELOPE(-58.667,-58.667,-62.250,-62.250) Journal of Plankton Research 33 1 119 136 |
institution |
Open Polar |
collection |
The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) |
op_collection_id |
fttrinitycoll |
language |
English |
topic |
Life Sciences |
spellingShingle |
Life Sciences Water column stability and Calanus finmarchicus |
topic_facet |
Life Sciences |
description |
Abstract Many authors have suggested that the abundance of the subarctic species Calanus finmarchicus can be influenced by the structure of the water column. Unfortunately to date, such a link has never been confirmed either experimentally or statistically. By using a macroecological approach, we investigated this hypothesis and showed that it varies with the developmental staged of the species. First, we implemented a new statistical procedure, based on an exponentially weighted moving average, to identify and quantify the depth and intensity of the thermocline. We applied the technique on 1,005,619 temperature profiles over the North Atlantic Ocean and provided a mapping of these two descriptors at a seasonal scale. Second, we studied the relationships between the depth and the intensity of the thermocline and Calanus finmarchicus using a biological dataset of 99,599 sampling stations. Our results suggested that the characteristics of the water column influence the spatial distribution of C. finmarchicus. The frequency in the occurrence of this species decreases when stratification rises. Our results further revealed that the effect is more pronounced on young copepodite stages. Such findings are of interest since, in a warmer world, water stratification is expected to increase, making more likely a reduction in the abundance of this key-structural species. gabriel.reygondeau@ird.fr (Reygondeau, Gabriel) Gregory.Beaugrand@univ-lille1.fr (Beaugrand, Gregory) Institut de la recherche et du devellopement, Ecologie milieu expoloite EME 212 - av. Jean Monnet--> , B.P. 171--> - 34203 - Sete - FRANCE (Reygondeau, Gabriel) Alister Hardy Foundation for Ocean Science, Citadel Hill, the Hoe - Plymouth - UNITED KINGDOM (Beaugrand, Gregory) FRANCE UNITED KINGDOM |
title |
Water column stability and Calanus finmarchicus |
title_short |
Water column stability and Calanus finmarchicus |
title_full |
Water column stability and Calanus finmarchicus |
title_fullStr |
Water column stability and Calanus finmarchicus |
title_full_unstemmed |
Water column stability and Calanus finmarchicus |
title_sort |
water column stability and calanus finmarchicus |
publisher |
Oxford University Press |
publishDate |
2011 |
url |
http://hdl.handle.net/2262/58490 https://doi.org/10.1093/plankt/FBQ091 |
long_lat |
ENVELOPE(-58.667,-58.667,-62.250,-62.250) |
geographic |
Eme |
geographic_facet |
Eme |
genre |
Calanus finmarchicus North Atlantic Subarctic |
genre_facet |
Calanus finmarchicus North Atlantic Subarctic |
op_relation |
0142-7873 (pISSN) 1464-3774 (eISSN) 0142-7873 (ISSN) JPR-2010-033 (PII) JPR-2010-033.R1 (manuscript) JPR-2010-033.R1 (publisherID) http://hdl.handle.net/2262/58490 Journal of Plankton Research 33 1 119 doi:10.1093/plankt/FBQ091 JPR (abbrev) |
op_rights |
No 12 months |
op_doi |
https://doi.org/10.1093/plankt/FBQ091 |
container_title |
Journal of Plankton Research |
container_volume |
33 |
container_issue |
1 |
container_start_page |
119 |
op_container_end_page |
136 |
_version_ |
1766382850713583616 |