Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study
Characterising how deep-sea communities change on contemporary time-scales and understanding underlying ecosystem processes has become important under changing climate and the rise in the exploitation of deep-sea resources. However, little is known about these dynamics and processes. Long-term obser...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://eprints.soton.ac.uk/350784/ https://eprints.soton.ac.uk/350784/1/Laguionie_DSRI_13.pdf |
id |
ftsouthampton:oai:eprints.soton.ac.uk:350784 |
---|---|
record_format |
openpolar |
spelling |
ftsouthampton:oai:eprints.soton.ac.uk:350784 2023-07-30T04:05:41+02:00 Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study Laguionie-Marchais, C. Billett, D.S.M. Paterson, G.L.D. Ruhl, H.A. Soto, E.H. Smith, K.L. Thatje, S. 2013-05 text https://eprints.soton.ac.uk/350784/ https://eprints.soton.ac.uk/350784/1/Laguionie_DSRI_13.pdf en eng https://eprints.soton.ac.uk/350784/1/Laguionie_DSRI_13.pdf Laguionie-Marchais, C., Billett, D.S.M., Paterson, G.L.D., Ruhl, H.A., Soto, E.H., Smith, K.L. and Thatje, S. (2013) Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study. Deep Sea Research Part I: Oceanographic Research Papers, 75, 175-186. (doi:10.1016/j.dsr.2012.12.007 <http://dx.doi.org/10.1016/j.dsr.2012.12.007>). Article PeerReviewed 2013 ftsouthampton https://doi.org/10.1016/j.dsr.2012.12.007 2023-07-09T21:45:42Z Characterising how deep-sea communities change on contemporary time-scales and understanding underlying ecosystem processes has become important under changing climate and the rise in the exploitation of deep-sea resources. However, little is known about these dynamics and processes. Long-term observations from which inter-annual variations can be detected are scarce in the deep sea. This study examines inter-annual changes in density, family richness and evenness, family and functional group rank abundance distributions of infaunal polychaetes at two abyssal stations in the North East Pacific (Station M, 1991 to 2005) and in the North East Atlantic (Porcupine Abyssal Plain, 1991 to 1999). The two long-term data sets were used to investigate not only if polychaete community structure and composition varied at inter-annual scales in terms of diversity and rank abundance distributions but also if any changes were related to previous observations in megafauna and environmental factors at each locality. The polychaete community structure at each locality was analysed using univariate statistics as well as multivariate ordination techniques based on Bray-Curtis similarity of the yearly family density. Sub-surface deposit feeders, such as Paraonidae, dominated the North East Pacific, whereas surface deposit feeders, such as Cirratulidae, dominated the North East Atlantic. Both stations showed inter-annual variations in density, family evenness and rank abundance distributions. The greatest changes occurred in 1998 in both time series when polychaete densities peaked, and switches in the rank abundance of the most abundant families and functional groups took place. Inter-annual variations in the polychaete community were correlated with a limited number of holothurian species changes, but no correlation was found with particulate organic matter flux or climate indices. Ecological and environmental factors behind the family-level changes remain elusive. Overall, changes in the dominance of functional groups imply ... Article in Journal/Newspaper North East Atlantic University of Southampton: e-Prints Soton Pacific Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) Deep Sea Research Part I: Oceanographic Research Papers 75 175 186 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Characterising how deep-sea communities change on contemporary time-scales and understanding underlying ecosystem processes has become important under changing climate and the rise in the exploitation of deep-sea resources. However, little is known about these dynamics and processes. Long-term observations from which inter-annual variations can be detected are scarce in the deep sea. This study examines inter-annual changes in density, family richness and evenness, family and functional group rank abundance distributions of infaunal polychaetes at two abyssal stations in the North East Pacific (Station M, 1991 to 2005) and in the North East Atlantic (Porcupine Abyssal Plain, 1991 to 1999). The two long-term data sets were used to investigate not only if polychaete community structure and composition varied at inter-annual scales in terms of diversity and rank abundance distributions but also if any changes were related to previous observations in megafauna and environmental factors at each locality. The polychaete community structure at each locality was analysed using univariate statistics as well as multivariate ordination techniques based on Bray-Curtis similarity of the yearly family density. Sub-surface deposit feeders, such as Paraonidae, dominated the North East Pacific, whereas surface deposit feeders, such as Cirratulidae, dominated the North East Atlantic. Both stations showed inter-annual variations in density, family evenness and rank abundance distributions. The greatest changes occurred in 1998 in both time series when polychaete densities peaked, and switches in the rank abundance of the most abundant families and functional groups took place. Inter-annual variations in the polychaete community were correlated with a limited number of holothurian species changes, but no correlation was found with particulate organic matter flux or climate indices. Ecological and environmental factors behind the family-level changes remain elusive. Overall, changes in the dominance of functional groups imply ... |
format |
Article in Journal/Newspaper |
author |
Laguionie-Marchais, C. Billett, D.S.M. Paterson, G.L.D. Ruhl, H.A. Soto, E.H. Smith, K.L. Thatje, S. |
spellingShingle |
Laguionie-Marchais, C. Billett, D.S.M. Paterson, G.L.D. Ruhl, H.A. Soto, E.H. Smith, K.L. Thatje, S. Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study |
author_facet |
Laguionie-Marchais, C. Billett, D.S.M. Paterson, G.L.D. Ruhl, H.A. Soto, E.H. Smith, K.L. Thatje, S. |
author_sort |
Laguionie-Marchais, C. |
title |
Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study |
title_short |
Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study |
title_full |
Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study |
title_fullStr |
Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study |
title_full_unstemmed |
Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study |
title_sort |
inter-annual dynamics of abyssal polychaete communities in the north east pacific and north east atlantic – a family-level study |
publishDate |
2013 |
url |
https://eprints.soton.ac.uk/350784/ https://eprints.soton.ac.uk/350784/1/Laguionie_DSRI_13.pdf |
long_lat |
ENVELOPE(-114.067,-114.067,-74.833,-74.833) |
geographic |
Pacific Bray |
geographic_facet |
Pacific Bray |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
https://eprints.soton.ac.uk/350784/1/Laguionie_DSRI_13.pdf Laguionie-Marchais, C., Billett, D.S.M., Paterson, G.L.D., Ruhl, H.A., Soto, E.H., Smith, K.L. and Thatje, S. (2013) Inter-annual dynamics of abyssal polychaete communities in the North East Pacific and North East Atlantic – A family-level study. Deep Sea Research Part I: Oceanographic Research Papers, 75, 175-186. (doi:10.1016/j.dsr.2012.12.007 <http://dx.doi.org/10.1016/j.dsr.2012.12.007>). |
op_doi |
https://doi.org/10.1016/j.dsr.2012.12.007 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
75 |
container_start_page |
175 |
op_container_end_page |
186 |
_version_ |
1772817775494955008 |