The microcosm of particles within seagrass Posidonia oceanica canopies

Comparison of the amount and nature of suspended matenal within Pos~donia oceanica canopies, in 6 meadows in the Spanish Mediterranean coast differing in extent and depth, with those in the overlying waters showed the canopies to be significantly enriched in particulate organic carbon, nitrogen and...

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Detalhes bibliográficos
Autores: Duarte, Carlos M., Benavent, Esther, Sánchez, M. Carmen
Formato: artículo
Fecha de publicación:1999
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/56028
Acesso em linha:http://hdl.handle.net/10261/56028
Access Level:acceso abierto
Palavra-chave:Seagrass
Seston
Sedimentation
Detritus
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spelling The microcosm of particles within seagrass Posidonia oceanica canopiesDuarte, Carlos M.Benavent, EstherSánchez, M. CarmenSeagrassSestonSedimentationDetritusComparison of the amount and nature of suspended matenal within Pos~donia oceanica canopies, in 6 meadows in the Spanish Mediterranean coast differing in extent and depth, with those in the overlying waters showed the canopies to be significantly enriched in particulate organic carbon, nitrogen and phosphorus relative to the overlying waters (on average, 87, 34 and 54 % more C, N and P, respectively). Biovolume of detntus (both angiosperm-denved and plankton-denved) was large, par- ticularly within seagrass canopies, where it dominated the seston pool (about 5-fold greater biovolume than that of living particles), compared to a roughly equal biovolume of detntal and llving particles in the parhcle pools in the overlying waters. The dominance of detrital particles was further reflected in the high C/N and C/P ratios of the suspended materials (median atonuc C : N . P ratios = 492: 40.9: 1 and 596:45.1 of the matenals suspended within the canopy and in the overly~ng waters, respectively), which were intermediate between those of living plankton and P oceanica. The relative ennchment of P oceanica canopies by part~cles tended to be greatest when particle loads in the overlying waters were small, suggesting that the effect of seagrasses as traps of particles is enhanced in particle-poor waters The results obtained support the hypothesis that the water within seagrass canopies is enriched by (mostly detrital) part~cles, particularly In particle-poor waters T h ~ s suggests that seagrasses not only contribute a substanhal fraction of the particles themselves, but also act as sinks of particles.This work is a contribution to the project MAS3-CT96-0053 of the ELOISE programme, funded by MAST I11 (CE)Peer reviewedInter Research201220121999info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/56028reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://www.int-res.com/articles/meps/181/m181p289.pdfinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/560282026-05-22T06:33:51Z
dc.title.none.fl_str_mv The microcosm of particles within seagrass Posidonia oceanica canopies
title The microcosm of particles within seagrass Posidonia oceanica canopies
spellingShingle The microcosm of particles within seagrass Posidonia oceanica canopies
Duarte, Carlos M.
Seagrass
Seston
Sedimentation
Detritus
title_short The microcosm of particles within seagrass Posidonia oceanica canopies
title_full The microcosm of particles within seagrass Posidonia oceanica canopies
title_fullStr The microcosm of particles within seagrass Posidonia oceanica canopies
title_full_unstemmed The microcosm of particles within seagrass Posidonia oceanica canopies
title_sort The microcosm of particles within seagrass Posidonia oceanica canopies
dc.creator.none.fl_str_mv Duarte, Carlos M.
Benavent, Esther
Sánchez, M. Carmen
author Duarte, Carlos M.
author_facet Duarte, Carlos M.
Benavent, Esther
Sánchez, M. Carmen
author_role author
author2 Benavent, Esther
Sánchez, M. Carmen
author2_role author
author
dc.subject.none.fl_str_mv Seagrass
Seston
Sedimentation
Detritus
topic Seagrass
Seston
Sedimentation
Detritus
description Comparison of the amount and nature of suspended matenal within Pos~donia oceanica canopies, in 6 meadows in the Spanish Mediterranean coast differing in extent and depth, with those in the overlying waters showed the canopies to be significantly enriched in particulate organic carbon, nitrogen and phosphorus relative to the overlying waters (on average, 87, 34 and 54 % more C, N and P, respectively). Biovolume of detntus (both angiosperm-denved and plankton-denved) was large, par- ticularly within seagrass canopies, where it dominated the seston pool (about 5-fold greater biovolume than that of living particles), compared to a roughly equal biovolume of detntal and llving particles in the parhcle pools in the overlying waters. The dominance of detrital particles was further reflected in the high C/N and C/P ratios of the suspended materials (median atonuc C : N . P ratios = 492: 40.9: 1 and 596:45.1 of the matenals suspended within the canopy and in the overly~ng waters, respectively), which were intermediate between those of living plankton and P oceanica. The relative ennchment of P oceanica canopies by part~cles tended to be greatest when particle loads in the overlying waters were small, suggesting that the effect of seagrasses as traps of particles is enhanced in particle-poor waters The results obtained support the hypothesis that the water within seagrass canopies is enriched by (mostly detrital) part~cles, particularly In particle-poor waters T h ~ s suggests that seagrasses not only contribute a substanhal fraction of the particles themselves, but also act as sinks of particles.
publishDate 1999
dc.date.none.fl_str_mv 1999
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/56028
url http://hdl.handle.net/10261/56028
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://www.int-res.com/articles/meps/181/m181p289.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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