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

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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 fertiliz...

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Autores principales: Alcoverro, T., Romero, J., Duarte, C.M., López, N.I.
Formato: Artículo publishedVersion
Publicado: 1997
Materias:
Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01718630_v146_n1-3_p155_Alcoverro
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_01718630_v146_n1-3_p155_Alcoverro_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_01718630_v146_n1-3_p155_Alcoverro_oai
record_format dspace
spelling I28-R145-paper_01718630_v146_n1-3_p155_Alcoverro_oai2024-08-16 Alcoverro, T. Romero, J. Duarte, C.M. López, N.I. 1997 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. application/pdf http://hdl.handle.net/20.500.12110/paper_01718630_v146_n1-3_p155_Alcoverro info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar MAR. ECOL. PROG. SER. 1997;146(1-3):155-161 Growth Nitrogen Phosphorus Retranslocation Seasonality Posidonia oceanica Posidonia oceanica Posidoniaceae growth nutrient limitation seagrass seagrass meadows seasonality Spain, Catalonia, Costa Brava Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_01718630_v146_n1-3_p155_Alcoverro_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
spellingShingle Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
Alcoverro, T.
Romero, J.
Duarte, C.M.
López, N.I.
Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
topic_facet Growth
Nitrogen
Phosphorus
Retranslocation
Seasonality
Posidonia oceanica
Posidonia oceanica
Posidoniaceae
growth
nutrient limitation
seagrass
seagrass meadows
seasonality
Spain, Catalonia, Costa Brava
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.
format Artículo
Artículo
publishedVersion
author Alcoverro, T.
Romero, J.
Duarte, C.M.
López, N.I.
author_facet Alcoverro, T.
Romero, J.
Duarte, C.M.
López, N.I.
author_sort Alcoverro, T.
title Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth in the NW Mediterranean
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
publishDate 1997
url http://hdl.handle.net/20.500.12110/paper_01718630_v146_n1-3_p155_Alcoverro
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_01718630_v146_n1-3_p155_Alcoverro_oai
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AT romeroj spatialandtemporalvariationsinnutrientlimitationofseagrassposidoniaoceanicagrowthinthenwmediterranean
AT duartecm spatialandtemporalvariationsinnutrientlimitationofseagrassposidoniaoceanicagrowthinthenwmediterranean
AT lopezni spatialandtemporalvariationsinnutrientlimitationofseagrassposidoniaoceanicagrowthinthenwmediterranean
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