Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic
<qd> McGinty, N., Power, A. M., and Johnson, M. P. Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic. – ICES Journal of Marine Science, doi:10.1093/icesjms/fss025. </qd>This study addresses the long-term stability of three trophic groupings in the Northe...
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Oxford University Press
2012
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fthighwire:oai:open-archive.highwire.org:icesjms:fss025v1 2023-05-15T17:34:27+02:00 Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic McGinty, Niall Power, Anne Marie Johnson, Mark P. 2012-02-27 23:40:24.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/fss025v1 https://doi.org/10.1093/icesjms/fss025 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/fss025v1 http://dx.doi.org/10.1093/icesjms/fss025 Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer ICES/NAFO - Variability of North Atlantic Marine Ecosystems 2000-2009 TEXT 2012 fthighwire https://doi.org/10.1093/icesjms/fss025 2013-05-26T22:47:31Z <qd> McGinty, N., Power, A. M., and Johnson, M. P. Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic. – ICES Journal of Marine Science, doi:10.1093/icesjms/fss025. </qd>This study addresses the long-term stability of three trophic groupings in the Northeast Atlantic at regional scales. The most abundant taxa representing phytoplankton, herbivorous copepods, and carnivorous zooplankton were examined from the Continuous Plankton Recorder database. Multivariate control charts using a Bray–Curtis similarity metric were used to assess whether fluctuations within trophic groupings were within or beyond the expected variability. Two evaluation periods were examined: annual changes between 1960 and 1999 (2000–2009 baseline) and recent changes between 2000 and 2009 (1960–1999 baseline). The trends over time in abundance/biomass of trophic levels were region-specific, especially in carnivorous copepods, where abundance did not mirror trends in the overall study area. The stability of phytoplankton was within the expected limits, although not in 2008 and 2009. Higher trophic levels were less stable, perhaps reflecting the added complexity of interactions governing their abundance. In addition, some regions were consistently less stable than others. Correlations in stability between adjacent trophic levels were positive at large marine ecosystem scale but generally non-significant at regional scales. The study suggests that certain regions may be particularly vulnerable to periods of instability in community structure. The benefits of using the control chart method rather than other multivariate measures of plankton dynamics are discussed. Text North Atlantic Northeast Atlantic Copepods HighWire Press (Stanford University) Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) ICES Journal of Marine Science 69 5 764 775 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
ICES/NAFO - Variability of North Atlantic Marine Ecosystems 2000-2009 |
spellingShingle |
ICES/NAFO - Variability of North Atlantic Marine Ecosystems 2000-2009 McGinty, Niall Power, Anne Marie Johnson, Mark P. Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic |
topic_facet |
ICES/NAFO - Variability of North Atlantic Marine Ecosystems 2000-2009 |
description |
<qd> McGinty, N., Power, A. M., and Johnson, M. P. Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic. – ICES Journal of Marine Science, doi:10.1093/icesjms/fss025. </qd>This study addresses the long-term stability of three trophic groupings in the Northeast Atlantic at regional scales. The most abundant taxa representing phytoplankton, herbivorous copepods, and carnivorous zooplankton were examined from the Continuous Plankton Recorder database. Multivariate control charts using a Bray–Curtis similarity metric were used to assess whether fluctuations within trophic groupings were within or beyond the expected variability. Two evaluation periods were examined: annual changes between 1960 and 1999 (2000–2009 baseline) and recent changes between 2000 and 2009 (1960–1999 baseline). The trends over time in abundance/biomass of trophic levels were region-specific, especially in carnivorous copepods, where abundance did not mirror trends in the overall study area. The stability of phytoplankton was within the expected limits, although not in 2008 and 2009. Higher trophic levels were less stable, perhaps reflecting the added complexity of interactions governing their abundance. In addition, some regions were consistently less stable than others. Correlations in stability between adjacent trophic levels were positive at large marine ecosystem scale but generally non-significant at regional scales. The study suggests that certain regions may be particularly vulnerable to periods of instability in community structure. The benefits of using the control chart method rather than other multivariate measures of plankton dynamics are discussed. |
format |
Text |
author |
McGinty, Niall Power, Anne Marie Johnson, Mark P. |
author_facet |
McGinty, Niall Power, Anne Marie Johnson, Mark P. |
author_sort |
McGinty, Niall |
title |
Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic |
title_short |
Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic |
title_full |
Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic |
title_fullStr |
Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic |
title_full_unstemmed |
Trophodynamics and stability of regional scale ecosystems in the Northeast Atlantic |
title_sort |
trophodynamics and stability of regional scale ecosystems in the northeast atlantic |
publisher |
Oxford University Press |
publishDate |
2012 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/fss025v1 https://doi.org/10.1093/icesjms/fss025 |
long_lat |
ENVELOPE(-114.067,-114.067,-74.833,-74.833) |
geographic |
Bray |
geographic_facet |
Bray |
genre |
North Atlantic Northeast Atlantic Copepods |
genre_facet |
North Atlantic Northeast Atlantic Copepods |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/fss025v1 http://dx.doi.org/10.1093/icesjms/fss025 |
op_rights |
Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fss025 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
5 |
container_start_page |
764 |
op_container_end_page |
775 |
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1766133297958617088 |