Descriptors from Posidonia oceanica (L.) Delile meadows in coastal waters of Valencia, Spain, in the context of the EU Water Framework Directive

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Title: Descriptors from Posidonia oceanica (L.) Delile meadows in coastal waters of Valencia, Spain, in the context of the EU Water Framework Directive
Authors: Fernández-Torquemada, Yolanda | Díaz Valdés, Marta | Colilla, Francisco | Luna i Pérez, Beatriz | Sánchez-Lizaso, José Luis | Ramos-Esplá, Alfonso A.
Research Group/s: Biología Marina
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada
Keywords: Biological quality element | Descriptors | Posidonia oceanica | Seagrass | Water Framework Directive
Knowledge Area: Biología Marina
Date Created: Dec-2007
Issue Date: Sep-2008
Publisher: Oxford University Press
Citation: FERNÁNDEZ TORQUEMADA, Yolanda, et al. “Descriptors from Posidonia oceanica (L.) Delile meadows in coastal waters of Valencia, Spain, in the context of the EU Water Framework Directive”. ICES Journal of Marine Science. Vol. 65, No. 8 (Nov. 2008). ISSN 1054-3139, pp. 1492-197
Abstract: Evaluations are provided of 21 descriptors of Posidonia oceanica meadows along the coast of Valencia, Spain, with a view to using these in implementing the European Water Framework Directive (WFD). The descriptors selected are known to respond to a variety of anthropogenic disturbances. Data were collected at 17 locations during three consecutive years. A principal components analysis was used to classify the ecological status of each locality according to five classes as prescribed by the WFD. To identify the descriptors that contributed most to similarity among localities within each class and to dissimilarity between adjacent classes, a similarity percentage analysis was performed. We also correlated the descriptors with an independent set of indicators for various types of anthropogenic pressures on the water bodies associated with the different localities. The descriptors providing the most consistent information on status as well as demonstrating a significant relationship with estimated pressures were: shoot density, shoot foliar surface, dead-matte cover, meadow cover, herbivore pressure, rhizome baring/burial, foliar necrosis, percentage of plagiotropic rhizomes, and leaf-epiphyte biomass.
Sponsor: The study was financed by the Conselleria de Medi Ambient, Aigua, Urbanisme i Habitatge of the Generalitat Valenciana.
URI: http://hdl.handle.net/10045/9558
ISSN: 1054-3139 (Print) | 1095-9289 (Online)
DOI: 10.1093/icesjms/fsn146
Language: eng
Type: info:eu-repo/semantics/article
Rights: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in ICES Journal of Marine Science following peer review. The definitive publisher-authenticated version of ICES Journal of Marine Science, 65: 1492– 1497, is available online at: http://icesjms.oxfordjournals.org/cgi/content/abstract/65/8/1492
Peer Review: si
Publisher version: http://dx.doi.org/10.1093/icesjms/fsn146
Appears in Collections:INV - BM - Artículos Científicos / Scientific Papers
INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas

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