Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UNIOESTE |
Texto Completo: | http://tede.unioeste.br/handle/tede/2943 |
Resumo: | Weather may be one of the most important factors influencing species selectivity, since it affects directly the ecosystems. In the last decades extreme climate events have become more frequent. Even though, these events are rare and unusual, they induce a lot of changes in the local weather, as intensifying events of drought and raining, beyond changing the temperature. Rainfall and temperature are the most important factors governing the biology of fish assemblages, in fact, they can influence directly almost all the rates of biological processes. Therefore, changes in the rainfall patterns may modify the rivers hydrology and reservoirs by mutating river floods and droughts regimes, which are important factors influencing the reproduction patterns and trophic dominance in aquatic systems. However, weather isn't only factor influencing the ichthyofauna and other aquatic groups in a Neotropical region. Aquatic ecosystems are also affected by river dams constructions, which may interfere in species life strategies and habitat. Consequently, we expect to found older reservoirs, in this type of environmental, concentrating a high abundance of sedentary species with higher feeding plasticity, since the reservoir aging process provide environmental changes that function as a filter for some functional traits. Therefore, your hypothesis is that changes on local weather may influence the water temperature consequently it will affect the fishes habitat quality, so any extreme change in the air temperature levels and rainfall will disturb the fish assemblages. Thus, the main objective with this thesis was to evaluate if the changes occurring in the regional weather during the beginning of 2000s had influence in the fish assemblage trophic reorganization in the Neotropical reservoirs. Our results showed that the local climate shifts, recorded during the study period, had effect in the fish assemblage organization as did the modifications caused by the reservoirs aging processes. |
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Piana, Pitágoras Augustohttp://lattes.cnpq.br/4575333508754234Baumgartner, Dirceuhttp://lattes.cnpq.br/1704962046056402Santos, Natália Carneiro Lacerda doshttp://lattes.cnpq.br/5609775019887019http://lattes.cnpq.br/7413764140110096Campos, Joana Carneiro de2017-08-25T22:56:33Z2017-03-03CAMPOS, Joana Carneiro de. Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais. 2017. 39 f. Dissertação (Mestrado em Recursos Pesqueiros e Engenharia de Pesca) - Universidade Estadual do Oeste do Paraná, Toledo, 2017.http://tede.unioeste.br/handle/tede/2943Weather may be one of the most important factors influencing species selectivity, since it affects directly the ecosystems. In the last decades extreme climate events have become more frequent. Even though, these events are rare and unusual, they induce a lot of changes in the local weather, as intensifying events of drought and raining, beyond changing the temperature. Rainfall and temperature are the most important factors governing the biology of fish assemblages, in fact, they can influence directly almost all the rates of biological processes. Therefore, changes in the rainfall patterns may modify the rivers hydrology and reservoirs by mutating river floods and droughts regimes, which are important factors influencing the reproduction patterns and trophic dominance in aquatic systems. However, weather isn't only factor influencing the ichthyofauna and other aquatic groups in a Neotropical region. Aquatic ecosystems are also affected by river dams constructions, which may interfere in species life strategies and habitat. Consequently, we expect to found older reservoirs, in this type of environmental, concentrating a high abundance of sedentary species with higher feeding plasticity, since the reservoir aging process provide environmental changes that function as a filter for some functional traits. Therefore, your hypothesis is that changes on local weather may influence the water temperature consequently it will affect the fishes habitat quality, so any extreme change in the air temperature levels and rainfall will disturb the fish assemblages. Thus, the main objective with this thesis was to evaluate if the changes occurring in the regional weather during the beginning of 2000s had influence in the fish assemblage trophic reorganization in the Neotropical reservoirs. Our results showed that the local climate shifts, recorded during the study period, had effect in the fish assemblage organization as did the modifications caused by the reservoirs aging processes.O clima pode ser considerado um dos fatores mais importante na seleção de espécies devido a influência direta nos ecossistemas. Nas últimas décadas a frequência e a intensidade de eventos climáticos extremos estão aumentando. Estes eventos são raros e incomuns, mas provocam uma série de alterações no clima regional como a intensidade dos eventos de seca e chuva, além de mudanças nas temperaturas. A temperatura e a pluviosidade são os fatores climáticos mais importantes que governam a biologia de grande parte da assembleia de peixes, tendo um efeito direto sobre a taxa da maioria dos processos biológicos. As mudanças nos padrões pluviométricos afetam a hidrologia de rios e reservatórios, alterando o regime de cheias e secas, os quais geralmente determinam os padrões de reprodução e dominância trófica nos sistemas aquáticos. O clima não é o único fator a influenciar a ictiofauna e os demais grupos aquáticos da região Neotropical. A construção de barragens também altera as características do ambiente aquático, modificando habitats e estratégias de vida. Nesses ambientes espera-se que quanto mais antigo for o reservatório maior a abundância de espécies sedentárias, com maior plasticidade alimentar. Isso porque as mudanças ambientais proporcionadas pelo envelhecimento dos reservatórios atuam como filtros para determinados traços funcionais. Portanto nossa hipótese é que se as mudanças no clima local influenciam na temperatura da água e assim na qualidade do habitat dos peixes, logo qualquer mudança extrema nos níveis de temperatura do ar e precipitação poderão afetar a assembleia de peixes. Em vista disso, o objetivo deste trabalho é avaliar se as mudanças que ocorreram no clima regional durante o início dos anos 2000, influenciaram a reorganização trófica da assembleia de peixes em reservatórios Neotropicais. As alterações climáticas locais registradas durante o período de estudo contribuíram para a organização da assembleia de peixes nos reservatórios.Submitted by Marilene Donadel (marilene.donadel@unioeste.br) on 2017-08-25T22:56:33Z No. of bitstreams: 1 Joana_Campos_2017.pdf: 1126375 bytes, checksum: 7b82144c17bed1abd380dec990a205c7 (MD5)Made available in DSpace on 2017-08-25T22:56:33Z (GMT). No. of bitstreams: 1 Joana_Campos_2017.pdf: 1126375 bytes, checksum: 7b82144c17bed1abd380dec990a205c7 (MD5) Previous issue date: 2017-03-03Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfpor-2624803687637593200500Universidade Estadual do Oeste do ParanáToledoPrograma de Pós-Graduação em Recursos Pesqueiros e Engenharia de PescaUNIOESTEBrasilCentro de Engenharias e Ciências ExatasAquecimentoIctiofaunaSubtropicalBarragensDamsWarmingIchthyofaunaSubtropicalCIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCAMudanças climáticas retardam o envelhecimento de reservatórios neotropicaisClimate change slowing neotropical reservoir aginginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis634168548598223434600600600600-7734402124082146922-61317501987095198112075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UNIOESTEinstname:Universidade Estadual do Oeste do Paraná (UNIOESTE)instacron:UNIOESTEORIGINALJoana_Campos_2017.pdfJoana_Campos_2017.pdfapplication/pdf1126375http://tede.unioeste.br:8080/tede/bitstream/tede/2943/2/Joana_Campos_2017.pdf7b82144c17bed1abd380dec990a205c7MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://tede.unioeste.br:8080/tede/bitstream/tede/2943/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede/29432017-08-25 19:56:33.127oai:tede.unioeste.br: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Biblioteca Digital de Teses e Dissertaçõeshttp://tede.unioeste.br/PUBhttp://tede.unioeste.br/oai/requestbiblioteca.repositorio@unioeste.bropendoar:2017-08-25T22:56:33Biblioteca Digital de Teses e Dissertações do UNIOESTE - Universidade Estadual do Oeste do Paraná (UNIOESTE)false |
dc.title.por.fl_str_mv |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
dc.title.alternative.eng.fl_str_mv |
Climate change slowing neotropical reservoir aging |
title |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
spellingShingle |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais Campos, Joana Carneiro de Aquecimento Ictiofauna Subtropical Barragens Dams Warming Ichthyofauna Subtropical CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA |
title_short |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
title_full |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
title_fullStr |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
title_full_unstemmed |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
title_sort |
Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais |
author |
Campos, Joana Carneiro de |
author_facet |
Campos, Joana Carneiro de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Piana, Pitágoras Augusto |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4575333508754234 |
dc.contributor.referee1.fl_str_mv |
Baumgartner, Dirceu |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/1704962046056402 |
dc.contributor.referee2.fl_str_mv |
Santos, Natália Carneiro Lacerda dos |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/5609775019887019 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7413764140110096 |
dc.contributor.author.fl_str_mv |
Campos, Joana Carneiro de |
contributor_str_mv |
Piana, Pitágoras Augusto Baumgartner, Dirceu Santos, Natália Carneiro Lacerda dos |
dc.subject.por.fl_str_mv |
Aquecimento Ictiofauna Subtropical Barragens Dams |
topic |
Aquecimento Ictiofauna Subtropical Barragens Dams Warming Ichthyofauna Subtropical CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA |
dc.subject.eng.fl_str_mv |
Warming Ichthyofauna Subtropical |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA |
description |
Weather may be one of the most important factors influencing species selectivity, since it affects directly the ecosystems. In the last decades extreme climate events have become more frequent. Even though, these events are rare and unusual, they induce a lot of changes in the local weather, as intensifying events of drought and raining, beyond changing the temperature. Rainfall and temperature are the most important factors governing the biology of fish assemblages, in fact, they can influence directly almost all the rates of biological processes. Therefore, changes in the rainfall patterns may modify the rivers hydrology and reservoirs by mutating river floods and droughts regimes, which are important factors influencing the reproduction patterns and trophic dominance in aquatic systems. However, weather isn't only factor influencing the ichthyofauna and other aquatic groups in a Neotropical region. Aquatic ecosystems are also affected by river dams constructions, which may interfere in species life strategies and habitat. Consequently, we expect to found older reservoirs, in this type of environmental, concentrating a high abundance of sedentary species with higher feeding plasticity, since the reservoir aging process provide environmental changes that function as a filter for some functional traits. Therefore, your hypothesis is that changes on local weather may influence the water temperature consequently it will affect the fishes habitat quality, so any extreme change in the air temperature levels and rainfall will disturb the fish assemblages. Thus, the main objective with this thesis was to evaluate if the changes occurring in the regional weather during the beginning of 2000s had influence in the fish assemblage trophic reorganization in the Neotropical reservoirs. Our results showed that the local climate shifts, recorded during the study period, had effect in the fish assemblage organization as did the modifications caused by the reservoirs aging processes. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-08-25T22:56:33Z |
dc.date.issued.fl_str_mv |
2017-03-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
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status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
CAMPOS, Joana Carneiro de. Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais. 2017. 39 f. Dissertação (Mestrado em Recursos Pesqueiros e Engenharia de Pesca) - Universidade Estadual do Oeste do Paraná, Toledo, 2017. |
dc.identifier.uri.fl_str_mv |
http://tede.unioeste.br/handle/tede/2943 |
identifier_str_mv |
CAMPOS, Joana Carneiro de. Mudanças climáticas retardam o envelhecimento de reservatórios neotropicais. 2017. 39 f. Dissertação (Mestrado em Recursos Pesqueiros e Engenharia de Pesca) - Universidade Estadual do Oeste do Paraná, Toledo, 2017. |
url |
http://tede.unioeste.br/handle/tede/2943 |
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por |
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por |
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634168548598223434 |
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openAccess |
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Universidade Estadual do Oeste do Paraná Toledo |
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