Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors

Distribution patterns of epilithic diatom assemblages in streams in northeastern Spain and their relation to different environmental gradients are presented. Thirty-five sites were sampled covering a wide range of fluvial typologies. Gradient analysis was used to analyze the community structure and th...

Descripción completa

Detalles Bibliográficos
Autores: Sabater, Sergi, Leira Campos, Antón Manoel
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:minerva.usc.gal:10347/32663
Acceso en línea:http://hdl.handle.net/10347/32663
Access Level:acceso abierto
Palabra clave:250805 Hidrobiología
id ES_2d46c0ff04e64c8e6eb660fdb134eb36
oai_identifier_str oai:minerva.usc.gal:10347/32663
network_acronym_str ES
network_name_str España
repository_id_str
spelling Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factorsSabater, SergiLeira Campos, Antón Manoel250805 HidrobiologíaDistribution patterns of epilithic diatom assemblages in streams in northeastern Spain and their relation to different environmental gradients are presented. Thirty-five sites were sampled covering a wide range of fluvial typologies. Gradient analysis was used to analyze the community structure and the major ecological gradients underlying variation in species composition. Two major gradients were evident; the first was a complex gradient from oligotrophic, pristine, fast-flowing highland rivers to mainly eutrophic rivers of low elevation; and the second related to altitudinal and seasonal variation of temperature. Two sets of factors were evident; one was associated with water chemistry, and the other to seasonal and physiographical variation. Variance partitioning allowed the separation of the effects of the different sets of environmental parameters. The contribution of physiography and water chemistry to diatom distribution was more unclear when the level of disturbance was intermediate. Considering the relatively high proportion of variation explained by physiographical variables alone, we suggest that when using diatoms to evaluate water quality, ecoregional characteristics of river stretches should also be considered.ElsevierUniversidade de Santiago de Compostela. Departamento de Bioloxía Funcional20052005-01-0120052005-01-01journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10347/32663reponame:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostelainstname:Universidad de Santiago de Compostela (USC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2CC BY-NC-ND 4.0http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:minerva.usc.gal:10347/326632026-06-15T12:47:27Z
dc.title.none.fl_str_mv Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
title Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
spellingShingle Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
Sabater, Sergi
250805 Hidrobiología
title_short Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
title_full Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
title_fullStr Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
title_full_unstemmed Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
title_sort Diatom assemblages distribution in catalan rivers, NE Spain, in relation to chemical and physiographical factors
dc.creator.none.fl_str_mv Sabater, Sergi
Leira Campos, Antón Manoel
author Sabater, Sergi
author_facet Sabater, Sergi
Leira Campos, Antón Manoel
author_role author
author2 Leira Campos, Antón Manoel
author2_role author
dc.contributor.none.fl_str_mv Universidade de Santiago de Compostela. Departamento de Bioloxía Funcional
dc.subject.none.fl_str_mv 250805 Hidrobiología
topic 250805 Hidrobiología
description Distribution patterns of epilithic diatom assemblages in streams in northeastern Spain and their relation to different environmental gradients are presented. Thirty-five sites were sampled covering a wide range of fluvial typologies. Gradient analysis was used to analyze the community structure and the major ecological gradients underlying variation in species composition. Two major gradients were evident; the first was a complex gradient from oligotrophic, pristine, fast-flowing highland rivers to mainly eutrophic rivers of low elevation; and the second related to altitudinal and seasonal variation of temperature. Two sets of factors were evident; one was associated with water chemistry, and the other to seasonal and physiographical variation. Variance partitioning allowed the separation of the effects of the different sets of environmental parameters. The contribution of physiography and water chemistry to diatom distribution was more unclear when the level of disturbance was intermediate. Considering the relatively high proportion of variation explained by physiographical variables alone, we suggest that when using diatoms to evaluate water quality, ecoregional characteristics of river stretches should also be considered.
publishDate 2005
dc.date.none.fl_str_mv 2005
2005-01-01
2005
2005-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10347/32663
url http://hdl.handle.net/10347/32663
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
CC BY-NC-ND 4.0
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
CC BY-NC-ND 4.0
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
instname:Universidad de Santiago de Compostela (USC)
instname_str Universidad de Santiago de Compostela (USC)
reponame_str Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
collection Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405304180965376
score 15,81155

Similares en LA Referencia