Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic
The Continuous Plankton Recorder (CPR) survey has collected data on basin-scale zooplankton abundance in the North Atlantic since the 1930s. These data have been used in many studies to elucidate seasonal patterns and long-term change in plankton populations, as well as more recently to validate eco...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.424.796 2023-05-15T15:48:02+02:00 Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic Anthony J. Richardson A Eurgain H. John B Xabier Irigoien C Roger P. Harris D Graeme C. Hays B The Pennsylvania State University CiteSeerX Archives 2003 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.796 http://www.swansea.ac.uk/bs/turtle/reprints/Richardson et al 2004 CPR LHPR comparison.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.796 http://www.swansea.ac.uk/bs/turtle/reprints/Richardson et al 2004 CPR LHPR comparison.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.swansea.ac.uk/bs/turtle/reprints/Richardson et al 2004 CPR LHPR comparison.pdf Zooplankton Copepods Ocean Weather Station India Continuous Plankton Recorder (CPR Longhurst-Hardy Plankton Recorder (LHPR text 2003 ftciteseerx 2016-01-08T04:14:40Z The Continuous Plankton Recorder (CPR) survey has collected data on basin-scale zooplankton abundance in the North Atlantic since the 1930s. These data have been used in many studies to elucidate seasonal patterns and long-term change in plankton populations, as well as more recently to validate ecosystem models. There has, however, been relatively little comparison of the data from the CPR with that from other samplers. In this study we compare zooplankton abundance estimated from the CPR in the northeast Atlantic with near-surface samples collected by a Longhurst-Hardy Plankton Recorder (LHPR) at Ocean Weather Station India (59 N, 19 W) between 1971 and 1975. Comparisons were made for six common copepods in the region: Acartia clausi, Calanus finmarchicus, Euchaeta norvegica, Metridia lucens, Oithona sp., and Pleuromamma robusta. Seasonal cycles based on CPR data were similar to those recorded by the LHPR. Differences in absolute abundances were apparent, however, with the CPR underestimating abundances by a factor of between 5 and 40, with the exception of A. clausi. Active avoidance by zooplankton is thought to be responsible. This avoidance is species specific, so that care must be taken describing communities, as the CPR emphasises those species that are preferentially caught, a problem common to many plankton samplers. Text Calanus finmarchicus North Atlantic Northeast Atlantic Copepods Unknown Longhurst ENVELOPE(157.300,157.300,-79.433,-79.433) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Zooplankton Copepods Ocean Weather Station India Continuous Plankton Recorder (CPR Longhurst-Hardy Plankton Recorder (LHPR |
spellingShingle |
Zooplankton Copepods Ocean Weather Station India Continuous Plankton Recorder (CPR Longhurst-Hardy Plankton Recorder (LHPR Anthony J. Richardson A Eurgain H. John B Xabier Irigoien C Roger P. Harris D Graeme C. Hays B Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic |
topic_facet |
Zooplankton Copepods Ocean Weather Station India Continuous Plankton Recorder (CPR Longhurst-Hardy Plankton Recorder (LHPR |
description |
The Continuous Plankton Recorder (CPR) survey has collected data on basin-scale zooplankton abundance in the North Atlantic since the 1930s. These data have been used in many studies to elucidate seasonal patterns and long-term change in plankton populations, as well as more recently to validate ecosystem models. There has, however, been relatively little comparison of the data from the CPR with that from other samplers. In this study we compare zooplankton abundance estimated from the CPR in the northeast Atlantic with near-surface samples collected by a Longhurst-Hardy Plankton Recorder (LHPR) at Ocean Weather Station India (59 N, 19 W) between 1971 and 1975. Comparisons were made for six common copepods in the region: Acartia clausi, Calanus finmarchicus, Euchaeta norvegica, Metridia lucens, Oithona sp., and Pleuromamma robusta. Seasonal cycles based on CPR data were similar to those recorded by the LHPR. Differences in absolute abundances were apparent, however, with the CPR underestimating abundances by a factor of between 5 and 40, with the exception of A. clausi. Active avoidance by zooplankton is thought to be responsible. This avoidance is species specific, so that care must be taken describing communities, as the CPR emphasises those species that are preferentially caught, a problem common to many plankton samplers. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Anthony J. Richardson A Eurgain H. John B Xabier Irigoien C Roger P. Harris D Graeme C. Hays B |
author_facet |
Anthony J. Richardson A Eurgain H. John B Xabier Irigoien C Roger P. Harris D Graeme C. Hays B |
author_sort |
Anthony J. Richardson A |
title |
Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic |
title_short |
Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic |
title_full |
Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic |
title_fullStr |
Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic |
title_full_unstemmed |
Instruments and Methods Howwell does the Continuous Plankton Recorder (CPR) sample zooplankton? A comparison with the Longhurst Hardy Plankton Recorder (LHPR) in the northeast Atlantic |
title_sort |
instruments and methods howwell does the continuous plankton recorder (cpr) sample zooplankton? a comparison with the longhurst hardy plankton recorder (lhpr) in the northeast atlantic |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.796 http://www.swansea.ac.uk/bs/turtle/reprints/Richardson et al 2004 CPR LHPR comparison.pdf |
long_lat |
ENVELOPE(157.300,157.300,-79.433,-79.433) |
geographic |
Longhurst |
geographic_facet |
Longhurst |
genre |
Calanus finmarchicus North Atlantic Northeast Atlantic Copepods |
genre_facet |
Calanus finmarchicus North Atlantic Northeast Atlantic Copepods |
op_source |
http://www.swansea.ac.uk/bs/turtle/reprints/Richardson et al 2004 CPR LHPR comparison.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.796 http://www.swansea.ac.uk/bs/turtle/reprints/Richardson et al 2004 CPR LHPR comparison.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766383031868719104 |