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Seasonal water level fluctuations: Implications for reservoir limnology and management

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Resumo:With the purpose of finding out whether seasonal water level fluctuations could affect water quality in a reservoir subjected to those changes, trends in environmental variables and in phytoplankton and zooplankton assemblages were analysed. The reservoir’s hydrological cycle was characterized by three regimes. The maximum level phase lasted from January to the beginning of June, the emptying phase existed between mid-June to the beginning of September and the minimum level phase lasted from mid-September to the beginning of the first autumn/winter rain events. The highest values of total phosphorus, soluble reactive phosphorus, nitrate, water colour and chlorophyll a were found during the minimum level phase. The phytoplankton assemblage was dominated by taxa typical of meso-eutrophic environments during the emptying and minimum level phases. However, during the maximum level phase, taxa generally found in more oligotrophic systems were observed here also. Similar to other disturbed systems, the zooplankton assemblage was dominated by Rotifera, except in summer and autumn when the cladoceran Ceriodaphnia quadrangula and/or the copepod Tropocyclops prasinus became dominant. Although those shifts seem to be related to water level variations, further research is needed to evaluate to what extent they might also be induced by other seasonal factors acting independently of water fluctuations. Based upon the obtained data, suggestions for reservoir management are proposed.
Autores principais:Geraldes, Ana Maria
Outros Autores:Boavida, Maria José
Assunto:Nutrients Phytoplankton and zooplankton assemblages Reservoir management Reservoirs Water level fluctuation
Ano:2005
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB
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author Geraldes, Ana Maria
author2 Boavida, Maria José
author2_role author
author_facet Geraldes, Ana Maria
Boavida, Maria José
author_role author
contributor_name_str_mv Biblioteca Digital do IPB
country_str PT
creators_json_txt [{\"Person.name\":\"Geraldes, Ana Maria\",\"Person.identifier.orcid\":\"0000-0003-4966-2227\"},{\"Person.name\":\"Boavida, Maria José\"}]
datacite.contributors.contributor.contributorName.fl_str_mv Biblioteca Digital do IPB
datacite.creators.creator.creatorName.fl_str_mv Geraldes, Ana Maria
Boavida, Maria José
datacite.date.Accepted.fl_str_mv 2005-01-01T00:00:00Z
datacite.date.available.fl_str_mv 2008-09-02T13:11:28Z
datacite.date.embargoed.fl_str_mv 2008-09-02T13:11:28Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv Nutrients
Phytoplankton and zooplankton assemblages
Reservoir management
Reservoirs
Water level fluctuation
datacite.titles.title.fl_str_mv Seasonal water level fluctuations: Implications for reservoir limnology and management
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.creator.none.fl_str_mv Geraldes, Ana Maria
Boavida, Maria José
dc.date.Accepted.fl_str_mv 2005-01-01T00:00:00Z
dc.date.available.fl_str_mv 2008-09-02T13:11:28Z
dc.date.embargoed.fl_str_mv 2008-09-02T13:11:28Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://hdl.handle.net/10198/711
dc.language.none.fl_str_mv eng
dc.publisher.none.fl_str_mv Blackwell Publishing
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.subject.none.fl_str_mv Nutrients
Phytoplankton and zooplankton assemblages
Reservoir management
Reservoirs
Water level fluctuation
dc.title.fl_str_mv Seasonal water level fluctuations: Implications for reservoir limnology and management
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
description With the purpose of finding out whether seasonal water level fluctuations could affect water quality in a reservoir subjected to those changes, trends in environmental variables and in phytoplankton and zooplankton assemblages were analysed. The reservoir’s hydrological cycle was characterized by three regimes. The maximum level phase lasted from January to the beginning of June, the emptying phase existed between mid-June to the beginning of September and the minimum level phase lasted from mid-September to the beginning of the first autumn/winter rain events. The highest values of total phosphorus, soluble reactive phosphorus, nitrate, water colour and chlorophyll a were found during the minimum level phase. The phytoplankton assemblage was dominated by taxa typical of meso-eutrophic environments during the emptying and minimum level phases. However, during the maximum level phase, taxa generally found in more oligotrophic systems were observed here also. Similar to other disturbed systems, the zooplankton assemblage was dominated by Rotifera, except in summer and autumn when the cladoceran Ceriodaphnia quadrangula and/or the copepod Tropocyclops prasinus became dominant. Although those shifts seem to be related to water level variations, further research is needed to evaluate to what extent they might also be induced by other seasonal factors acting independently of water fluctuations. Based upon the obtained data, suggestions for reservoir management are proposed.
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eu_rights_str_mv openAccess
format article
fulltext.url.fl_str_mv https://bibliotecadigital.ipb.pt/bitstreams/d9eba27e-d41d-46ba-bad7-fda94d8bed62/download
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identifier.url.fl_str_mv http://hdl.handle.net/10198/711
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institution Instituto Politécnico de Bragança
instname_str Instituto Politécnico de Bragança
language eng
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network_name_str Biblioteca Digital do IPB
oai_identifier_str oai:bibliotecadigital.ipb.pt:10198/711
organization_str_mv urn:organizationAcronym:ipb
person_str_mv Geraldes, Ana Maria
Geraldes, Ana Maria
https://www.ciencia-id.pt/7D13-2CED-D6C5
7D13-2CED-D6C5
http://orcid.org/0000-0003-4966-2227
0000-0003-4966-2227
Boavida, Maria José
publishDate 2005
publisher.none.fl_str_mv Blackwell Publishing
reponame_str Biblioteca Digital do IPB
repository_id_str urn:repositoryAcronym:ipb
service_str_mv urn:repositoryAcronym:ipb
spelling engBlackwell PublishingenWith the purpose of finding out whether seasonal water level fluctuations could affect water quality in a reservoir subjected to those changes, trends in environmental variables and in phytoplankton and zooplankton assemblages were analysed. The reservoir’s hydrological cycle was characterized by three regimes. The maximum level phase lasted from January to the beginning of June, the emptying phase existed between mid-June to the beginning of September and the minimum level phase lasted from mid-September to the beginning of the first autumn/winter rain events. The highest values of total phosphorus, soluble reactive phosphorus, nitrate, water colour and chlorophyll a were found during the minimum level phase. The phytoplankton assemblage was dominated by taxa typical of meso-eutrophic environments during the emptying and minimum level phases. However, during the maximum level phase, taxa generally found in more oligotrophic systems were observed here also. Similar to other disturbed systems, the zooplankton assemblage was dominated by Rotifera, except in summer and autumn when the cladoceran Ceriodaphnia quadrangula and/or the copepod Tropocyclops prasinus became dominant. Although those shifts seem to be related to water level variations, further research is needed to evaluate to what extent they might also be induced by other seasonal factors acting independently of water fluctuations. Based upon the obtained data, suggestions for reservoir management are proposed.application/pdfenSeasonal water level fluctuations: Implications for reservoir limnology and managementPersonalGeraldes, Ana MariaDSpacehttp://dspace.org/items/6e872389-a4ae-407d-b2cf-c2c8743dcd44DSpacehttp://dspace.org/items/6e872389-a4ae-407d-b2cf-c2c8743dcd44GeraldesAna MariaCiência IDhttps://www.ciencia-id.pt7D13-2CED-D6C5ORCIDhttp://orcid.org0000-0003-4966-2227Researcher IDhttps://www.researcherid.comJ-8566-2014Scopus Author IDhttps://www.scopus.com57204313331Boavida, Maria JoséHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISSNIsPartOf1320-5331DOIIsPartOf10.1111/j.1440-1770.2005.00257.x2008-09-02T13:11:28Z20052005-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/711http://purl.org/coar/access_right/c_abf2open accessNutrientsPhytoplankton and zooplankton assemblagesReservoir managementReservoirsWater level fluctuation355743 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/d9eba27e-d41d-46ba-bad7-fda94d8bed62/download
spellingShingle Seasonal water level fluctuations: Implications for reservoir limnology and management
Geraldes, Ana Maria
Nutrients
Phytoplankton and zooplankton assemblages
Reservoir management
Reservoirs
Water level fluctuation
status SINGLETON
subject.fl_str_mv Nutrients
Phytoplankton and zooplankton assemblages
Reservoir management
Reservoirs
Water level fluctuation
title Seasonal water level fluctuations: Implications for reservoir limnology and management
title_full Seasonal water level fluctuations: Implications for reservoir limnology and management
title_fullStr Seasonal water level fluctuations: Implications for reservoir limnology and management
title_full_unstemmed Seasonal water level fluctuations: Implications for reservoir limnology and management
title_short Seasonal water level fluctuations: Implications for reservoir limnology and management
title_sort Seasonal water level fluctuations: Implications for reservoir limnology and management
topic Nutrients
Phytoplankton and zooplankton assemblages
Reservoir management
Reservoirs
Water level fluctuation
topic_facet Nutrients
Phytoplankton and zooplankton assemblages
Reservoir management
Reservoirs
Water level fluctuation
url http://hdl.handle.net/10198/711
visible 1