Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean

Autores
Alcoverro, T.; Romero, J.; Duarte, C.M.; López, N.I.
Año de publicación
1997
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The extent and seasonality of nutrient limitation of Posidonia oceanica (L.) Delile in the Costa Brava littoral (NW Mediterranean) in 5 meadows was investigated by means of repeated nutrient additions along a year cycle. Nutrient additions had a modest effect on leaf growth. The response to fertilization varied considerably among meadows, with those meadows consistently maintaining low (300 μM dissolved inorganic nitrogen and 9 μM soluble reactive phosphorus) dissolved inorganic nutrient concentrations in sediment pore waters showing the greatest response to fertilization. The seasonality of the growth response to fertilization was consistent with calculated nutrient deficiencies, which were greatest in late spring and summer. Nutrient deficiency was alleviated in the fall, partially due to reduced growth, but also to nutrient reclamation from old leaves, which represented 20% and 18% of the annual nitrogen and phosphorus incorporation, respectively. The relative deficiency of nitrogen and phosphorus differed among sites, with the highest response found in P-deficient meadows. Nutrient limitation of P. oceanica meadows was greatest in late spring and summer, but differed greatly in magnitude and nature (nitrogen vs phosphorus) depending on local nutrient regimes.
Fuente
MAR. ECOL. PROG. SER. 1997;146(1-3):155-161
Materia
Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_01718630_v146_n1-3_p155_Alcoverro

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oai_identifier_str paperaa:paper_01718630_v146_n1-3_p155_Alcoverro
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW MediterraneanAlcoverro, T.Romero, J.Duarte, C.M.López, N.I.GrowthNitrogenPhosphorusRetranslocationSeasonalityPosidonia oceanicaPosidonia oceanicaPosidoniaceaegrowthnutrient limitationseagrassseagrass meadowsseasonalitySpain, Catalonia, Costa BravaThe extent and seasonality of nutrient limitation of Posidonia oceanica (L.) Delile in the Costa Brava littoral (NW Mediterranean) in 5 meadows was investigated by means of repeated nutrient additions along a year cycle. Nutrient additions had a modest effect on leaf growth. The response to fertilization varied considerably among meadows, with those meadows consistently maintaining low (300 μM dissolved inorganic nitrogen and 9 μM soluble reactive phosphorus) dissolved inorganic nutrient concentrations in sediment pore waters showing the greatest response to fertilization. The seasonality of the growth response to fertilization was consistent with calculated nutrient deficiencies, which were greatest in late spring and summer. Nutrient deficiency was alleviated in the fall, partially due to reduced growth, but also to nutrient reclamation from old leaves, which represented 20% and 18% of the annual nitrogen and phosphorus incorporation, respectively. The relative deficiency of nitrogen and phosphorus differed among sites, with the highest response found in P-deficient meadows. Nutrient limitation of P. oceanica meadows was greatest in late spring and summer, but differed greatly in magnitude and nature (nitrogen vs phosphorus) depending on local nutrient regimes.1997info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_01718630_v146_n1-3_p155_AlcoverroMAR. ECOL. PROG. SER. 1997;146(1-3):155-161reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:54Zpaperaa:paper_01718630_v146_n1-3_p155_AlcoverroInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:55.76Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
title Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
spellingShingle Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
Alcoverro, T.
Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
title_short Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
title_full Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
title_fullStr Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
title_full_unstemmed Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
title_sort Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
dc.creator.none.fl_str_mv Alcoverro, T.
Romero, J.
Duarte, C.M.
López, N.I.
author Alcoverro, T.
author_facet Alcoverro, T.
Romero, J.
Duarte, C.M.
López, N.I.
author_role author
author2 Romero, J.
Duarte, C.M.
López, N.I.
author2_role author
author
author
dc.subject.none.fl_str_mv Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
topic Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
dc.description.none.fl_txt_mv The extent and seasonality of nutrient limitation of Posidonia oceanica (L.) Delile in the Costa Brava littoral (NW Mediterranean) in 5 meadows was investigated by means of repeated nutrient additions along a year cycle. Nutrient additions had a modest effect on leaf growth. The response to fertilization varied considerably among meadows, with those meadows consistently maintaining low (300 μM dissolved inorganic nitrogen and 9 μM soluble reactive phosphorus) dissolved inorganic nutrient concentrations in sediment pore waters showing the greatest response to fertilization. The seasonality of the growth response to fertilization was consistent with calculated nutrient deficiencies, which were greatest in late spring and summer. Nutrient deficiency was alleviated in the fall, partially due to reduced growth, but also to nutrient reclamation from old leaves, which represented 20% and 18% of the annual nitrogen and phosphorus incorporation, respectively. The relative deficiency of nitrogen and phosphorus differed among sites, with the highest response found in P-deficient meadows. Nutrient limitation of P. oceanica meadows was greatest in late spring and summer, but differed greatly in magnitude and nature (nitrogen vs phosphorus) depending on local nutrient regimes.
description The extent and seasonality of nutrient limitation of Posidonia oceanica (L.) Delile in the Costa Brava littoral (NW Mediterranean) in 5 meadows was investigated by means of repeated nutrient additions along a year cycle. Nutrient additions had a modest effect on leaf growth. The response to fertilization varied considerably among meadows, with those meadows consistently maintaining low (300 μM dissolved inorganic nitrogen and 9 μM soluble reactive phosphorus) dissolved inorganic nutrient concentrations in sediment pore waters showing the greatest response to fertilization. The seasonality of the growth response to fertilization was consistent with calculated nutrient deficiencies, which were greatest in late spring and summer. Nutrient deficiency was alleviated in the fall, partially due to reduced growth, but also to nutrient reclamation from old leaves, which represented 20% and 18% of the annual nitrogen and phosphorus incorporation, respectively. The relative deficiency of nitrogen and phosphorus differed among sites, with the highest response found in P-deficient meadows. Nutrient limitation of P. oceanica meadows was greatest in late spring and summer, but differed greatly in magnitude and nature (nitrogen vs phosphorus) depending on local nutrient regimes.
publishDate 1997
dc.date.none.fl_str_mv 1997
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_01718630_v146_n1-3_p155_Alcoverro
url http://hdl.handle.net/20.500.12110/paper_01718630_v146_n1-3_p155_Alcoverro
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv MAR. ECOL. PROG. SER. 1997;146(1-3):155-161
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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