Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/7894 https://doi.org/10.1007/s10750-004-8335-9 |
Resumo: | The study of the diatom ecological preferences was conducted from January 2002 to June 2003 in Canal de Mira, Ria de Aveiro, Western Portugal. Three sampling stations along a salinity gradient were sampled monthly, in new moon, at high and low tide. Salinity, temperature, pH, dissolved oxygen and nutrient contents were measured for each sampling station; chlorophyll a and diatom diversity and abundance were also evaluated. Canonical correspondence analysis was used to identify the environmental variables governing the composition and structure of diatom assemblage. The variation in the species data among the different reaches was strongly determined by the salinity spatial gradient and by the temperature temporal gradient. The lower reaches were dominated by marine species (e.g. Auliscus sculptus, Chaetoceros densus, Fallacia forcipata,Licmophora flabellata, L. grandis, Surirella comis), while in the most upstream station typical freshwater species dominated (e.g. Caloneis permagna, Cymatopleura solea, Cymbella tumida, Gomphonema longiceps, Pinnularia stommatophora, Stauroneis smithii). Weighted averaging was used to estimate optima and tolerances of some diatom taxa for the most influential variables. It was possible to establish groups oftaxa with defined and distinctive salinity and temperature preferences. |
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Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal)The study of the diatom ecological preferences was conducted from January 2002 to June 2003 in Canal de Mira, Ria de Aveiro, Western Portugal. Three sampling stations along a salinity gradient were sampled monthly, in new moon, at high and low tide. Salinity, temperature, pH, dissolved oxygen and nutrient contents were measured for each sampling station; chlorophyll a and diatom diversity and abundance were also evaluated. Canonical correspondence analysis was used to identify the environmental variables governing the composition and structure of diatom assemblage. The variation in the species data among the different reaches was strongly determined by the salinity spatial gradient and by the temperature temporal gradient. The lower reaches were dominated by marine species (e.g. Auliscus sculptus, Chaetoceros densus, Fallacia forcipata,Licmophora flabellata, L. grandis, Surirella comis), while in the most upstream station typical freshwater species dominated (e.g. Caloneis permagna, Cymatopleura solea, Cymbella tumida, Gomphonema longiceps, Pinnularia stommatophora, Stauroneis smithii). Weighted averaging was used to estimate optima and tolerances of some diatom taxa for the most influential variables. It was possible to establish groups oftaxa with defined and distinctive salinity and temperature preferences.2005info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/7894http://hdl.handle.net/10316/7894https://doi.org/10.1007/s10750-004-8335-9engHydrobiologia. 544:1 (2005) 77-88Resende, PaulaAzeiteiro, UlissesPereira, Mário Jorgeinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-29T09:41:54Zoai:estudogeral.uc.pt:10316/7894Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:55:35.620739Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
title |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
spellingShingle |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) Resende, Paula |
title_short |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
title_full |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
title_fullStr |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
title_full_unstemmed |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
title_sort |
Diatom ecological preferences in a shallow temperate estuary (Ria de Aveiro, Western Portugal) |
author |
Resende, Paula |
author_facet |
Resende, Paula Azeiteiro, Ulisses Pereira, Mário Jorge |
author_role |
author |
author2 |
Azeiteiro, Ulisses Pereira, Mário Jorge |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Resende, Paula Azeiteiro, Ulisses Pereira, Mário Jorge |
description |
The study of the diatom ecological preferences was conducted from January 2002 to June 2003 in Canal de Mira, Ria de Aveiro, Western Portugal. Three sampling stations along a salinity gradient were sampled monthly, in new moon, at high and low tide. Salinity, temperature, pH, dissolved oxygen and nutrient contents were measured for each sampling station; chlorophyll a and diatom diversity and abundance were also evaluated. Canonical correspondence analysis was used to identify the environmental variables governing the composition and structure of diatom assemblage. The variation in the species data among the different reaches was strongly determined by the salinity spatial gradient and by the temperature temporal gradient. The lower reaches were dominated by marine species (e.g. Auliscus sculptus, Chaetoceros densus, Fallacia forcipata,Licmophora flabellata, L. grandis, Surirella comis), while in the most upstream station typical freshwater species dominated (e.g. Caloneis permagna, Cymatopleura solea, Cymbella tumida, Gomphonema longiceps, Pinnularia stommatophora, Stauroneis smithii). Weighted averaging was used to estimate optima and tolerances of some diatom taxa for the most influential variables. It was possible to establish groups oftaxa with defined and distinctive salinity and temperature preferences. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/7894 http://hdl.handle.net/10316/7894 https://doi.org/10.1007/s10750-004-8335-9 |
url |
http://hdl.handle.net/10316/7894 https://doi.org/10.1007/s10750-004-8335-9 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Hydrobiologia. 544:1 (2005) 77-88 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133842720686080 |