Publicação
Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables?
| Resumo: | This research aimed at monitoring and characterizing the zooplankton community of Aguieira reservoir (40.33 N; 8.19 W). Aguieira trophic state, nutrient concentration (the highest amounts were observed in summer) and ultimately water quality can be explained by the internal disturbance induced by the intense water level fluctuations. This indeed leads to an increase in suspended particulate material in the water column. Besides, the exposure of littoral sediments to cycles of drying and wetting also increases nutrient availability, preventing macrophytes establishment. These phenomena with the input of allochthonous nutrients originated from human activities in the catchment area lead to the increase of phytoplankton biomass (mainly Cyanobacteria) during summer. When Cyanobacteria were dominating the phytoplankton assemblage, zooplankton community was clearly dominated by the rotifer, Keratella cochlearis and by the caldoceran, Chydorus sphaericus. In the absence of Cyanobacteria, Copidodiaptomus numidicus and Daphnia longispina subsisted as the most representative species. Canonical correspondence analysis (CCA) identified two main environmental gradients that shape zooplankton community: one being temporal mainly related to temperature, and the other, a trophic gradient associated to chlorophyll a concentration, water transparency, nitrates and nitrites. Variance partitioning using CCA revealed that the largest portion (45%) of the total variation explained (70%) was attributed to the interaction between lake and environmental variables. |
|---|---|
| Autores principais: | Geraldes, Ana Maria |
| Outros Autores: | Silva-Santos, Pedro; Pasupuleti, Rajeev |
| Assunto: | Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| Ano: | 2016 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173222392266752 |
|---|---|
| author | Geraldes, Ana Maria |
| author2 | Silva-Santos, Pedro Pasupuleti, Rajeev |
| author2_role | author author |
| author_facet | Geraldes, Ana Maria Silva-Santos, Pedro Pasupuleti, Rajeev |
| 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\":\"Silva-Santos, Pedro\"},{\"Person.name\":\"Pasupuleti, Rajeev\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Geraldes, Ana Maria Silva-Santos, Pedro Pasupuleti, Rajeev |
| datacite.date.Accepted.fl_str_mv | 2016-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2018-03-01T14:37:19Z |
| datacite.date.embargoed.fl_str_mv | 2018-03-01T14:37:19Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| datacite.titles.title.fl_str_mv | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Geraldes, Ana Maria Silva-Santos, Pedro Pasupuleti, Rajeev |
| dc.date.Accepted.fl_str_mv | 2016-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2018-03-01T14:37:19Z |
| dc.date.embargoed.fl_str_mv | 2018-03-01T14:37:19Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/16087 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| dc.title.fl_str_mv | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | This research aimed at monitoring and characterizing the zooplankton community of Aguieira reservoir (40.33 N; 8.19 W). Aguieira trophic state, nutrient concentration (the highest amounts were observed in summer) and ultimately water quality can be explained by the internal disturbance induced by the intense water level fluctuations. This indeed leads to an increase in suspended particulate material in the water column. Besides, the exposure of littoral sediments to cycles of drying and wetting also increases nutrient availability, preventing macrophytes establishment. These phenomena with the input of allochthonous nutrients originated from human activities in the catchment area lead to the increase of phytoplankton biomass (mainly Cyanobacteria) during summer. When Cyanobacteria were dominating the phytoplankton assemblage, zooplankton community was clearly dominated by the rotifer, Keratella cochlearis and by the caldoceran, Chydorus sphaericus. In the absence of Cyanobacteria, Copidodiaptomus numidicus and Daphnia longispina subsisted as the most representative species. Canonical correspondence analysis (CCA) identified two main environmental gradients that shape zooplankton community: one being temporal mainly related to temperature, and the other, a trophic gradient associated to chlorophyll a concentration, water transparency, nitrates and nitrites. Variance partitioning using CCA revealed that the largest portion (45%) of the total variation explained (70%) was attributed to the interaction between lake and environmental variables. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/09c3bdba-2e8e-4b35-97b7-e04792516ce3/download |
| id | ipb_5fb99bb676dd9989aa32577ea007eaf2 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/16087 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/16087 |
| 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 Silva-Santos, Pedro Pasupuleti, Rajeev |
| publishDate | 2016 |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engpt_PTThis research aimed at monitoring and characterizing the zooplankton community of Aguieira reservoir (40.33 N; 8.19 W). Aguieira trophic state, nutrient concentration (the highest amounts were observed in summer) and ultimately water quality can be explained by the internal disturbance induced by the intense water level fluctuations. This indeed leads to an increase in suspended particulate material in the water column. Besides, the exposure of littoral sediments to cycles of drying and wetting also increases nutrient availability, preventing macrophytes establishment. These phenomena with the input of allochthonous nutrients originated from human activities in the catchment area lead to the increase of phytoplankton biomass (mainly Cyanobacteria) during summer. When Cyanobacteria were dominating the phytoplankton assemblage, zooplankton community was clearly dominated by the rotifer, Keratella cochlearis and by the caldoceran, Chydorus sphaericus. In the absence of Cyanobacteria, Copidodiaptomus numidicus and Daphnia longispina subsisted as the most representative species. Canonical correspondence analysis (CCA) identified two main environmental gradients that shape zooplankton community: one being temporal mainly related to temperature, and the other, a trophic gradient associated to chlorophyll a concentration, water transparency, nitrates and nitrites. Variance partitioning using CCA revealed that the largest portion (45%) of the total variation explained (70%) was attributed to the interaction between lake and environmental variables.application/pdfpt_PTZooplankton community structure in a deep reservoir: seasonal trends and structuring variables?PersonalGeraldes, 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.com57204313331Silva-Santos, PedroPasupuleti, RajeevHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISSNIsPartOf2457-97772018-03-01T14:37:19Z20162016-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/16087http://purl.org/coar/access_right/c_abf2open accessZooplankton communitySeasonal trendsDeep reservoirEnvironmental variables1673258 bytesother research producthttp://purl.org/coar/resource_type/c_c94fconference object2016http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/09c3bdba-2e8e-4b35-97b7-e04792516ce3/downloadInternational Zoological Congress of “Grigore Antipa” MuseumBucharest, Romania |
| spellingShingle | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? Geraldes, Ana Maria Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| status | SINGLETON |
| subject.fl_str_mv | Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| title | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| title_full | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| title_fullStr | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| title_full_unstemmed | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| title_short | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| title_sort | Zooplankton community structure in a deep reservoir: seasonal trends and structuring variables? |
| topic | Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| topic_facet | Zooplankton community Seasonal trends Deep reservoir Environmental variables |
| url | http://hdl.handle.net/10198/16087 |
| visible | 1 |