Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquabot.2018.07.004 http://hdl.handle.net/11449/184864 |
Resumo: | We developed a pilot study on the potential of aquatic plants as indicators of ecological quality in tropical rivers to provide an index of biotic integrity for monitoring, conservation, and restoration purposes. We used floristic, environmental, and anthropogenic disturbance data from a 950 km(2) river basin in the southern littoral area of Sao Paulo State, Brazil (Itanhaem River Basin), and proposed a five-step methodological framework for the development of a macrophyte index in tropical river basins. Field surveys were carried out in 137 sites (Spring 2013-2014) of Itanhaem River for the index development and in 27 sites of Itapanhad River (Spring 2015) for its validation. A total of 44 aquatic plant species were recorded in the study area, and 11 metrics were evaluated as potential core metrics of the index. Principal Component Analysis distinguished two river types mostly related to geomorphological characteristics - the Upper river type in the mountainous region (average slope 23.7 degrees) and the Middle-low river type (average slope 9.2 degrees) in the floodplain. The Upper river catchment was characterized by extensive areas occupied by banana plantations, low water conductivity, sandy substrates, and homogeneous aquatic vegetation, whereas the Middle-low river catchment had more urban settlements and displayed high nitrogen and phosphorus contents in water and sediments. The index (MIBI-ITA) is preliminary and was based on species richness and life forms (e.g. submerged hydrophytes, helophytes). MIBI-ITA could only be developed for the lowlands and displayed a high discriminatory ability for distinguishing disturbance and a good performance with external data. Bioassessment in tropical rivers require further investigation on biogeography and long-term responses of macrophyte populations to stressors, as well as knowledge-base on river typology and functional traits of macrophytes, other than morpho-anatomic traits and diversity measures. |
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Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, BrazilEcological qualityTropical catchmentMacrophyte IBIMultimetric indexRiver monitoringWe developed a pilot study on the potential of aquatic plants as indicators of ecological quality in tropical rivers to provide an index of biotic integrity for monitoring, conservation, and restoration purposes. We used floristic, environmental, and anthropogenic disturbance data from a 950 km(2) river basin in the southern littoral area of Sao Paulo State, Brazil (Itanhaem River Basin), and proposed a five-step methodological framework for the development of a macrophyte index in tropical river basins. Field surveys were carried out in 137 sites (Spring 2013-2014) of Itanhaem River for the index development and in 27 sites of Itapanhad River (Spring 2015) for its validation. A total of 44 aquatic plant species were recorded in the study area, and 11 metrics were evaluated as potential core metrics of the index. Principal Component Analysis distinguished two river types mostly related to geomorphological characteristics - the Upper river type in the mountainous region (average slope 23.7 degrees) and the Middle-low river type (average slope 9.2 degrees) in the floodplain. The Upper river catchment was characterized by extensive areas occupied by banana plantations, low water conductivity, sandy substrates, and homogeneous aquatic vegetation, whereas the Middle-low river catchment had more urban settlements and displayed high nitrogen and phosphorus contents in water and sediments. The index (MIBI-ITA) is preliminary and was based on species richness and life forms (e.g. submerged hydrophytes, helophytes). MIBI-ITA could only be developed for the lowlands and displayed a high discriminatory ability for distinguishing disturbance and a good performance with external data. Bioassessment in tropical rivers require further investigation on biogeography and long-term responses of macrophyte populations to stressors, as well as knowledge-base on river typology and functional traits of macrophytes, other than morpho-anatomic traits and diversity measures.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundacao para a Ciencia e a Tecnologia (FCT, Portugal)FC AguiarUniv Estadual Paulista, Programa Posgrad Aquicultura, BR-14884900 Jaboticabal, SP, BrazilUniv Lisbon, Inst Super Agron, Ctr Estudos Florestais, P-1349017 Lisbon, PortugalUniv Estadual Paulista, Dept Ecol, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Paulista, Programa Posgrad Aquicultura, BR-14884900 Jaboticabal, SP, BrazilUniv Estadual Paulista, Dept Ecol, BR-13506900 Rio Claro, SP, BrazilCAPES: 999.009392/2014-09FAPESP: 2012/21517-9Fundacao para a Ciencia e a Tecnologia (FCT, Portugal): UID/AGR/00239/2013FC Aguiar: SFRH/BPD/112417/2015Elsevier B.V.Universidade Estadual Paulista (Unesp)Univ LisbonUmetsu, Cristiane Akemi [UNESP]Aguiar, Francisca C.Ferreira, Maria TeresaCancian, Leonardo Farage [UNESP]Monteiro Camargo, Antonio Fernando [UNESP]2019-10-04T12:30:39Z2019-10-04T12:30:39Z2018-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article53-63http://dx.doi.org/10.1016/j.aquabot.2018.07.004Aquatic Botany. Amsterdam: Elsevier Science Bv, v. 150, p. 53-63, 2018.0304-3770http://hdl.handle.net/11449/18486410.1016/j.aquabot.2018.07.004WOS:000444356300008Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquatic Botanyinfo:eu-repo/semantics/openAccess2024-04-09T15:10:46Zoai:repositorio.unesp.br:11449/184864Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:31:48.238456Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
title |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
spellingShingle |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil Umetsu, Cristiane Akemi [UNESP] Ecological quality Tropical catchment Macrophyte IBI Multimetric index River monitoring |
title_short |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
title_full |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
title_fullStr |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
title_full_unstemmed |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
title_sort |
Addressing bioassessment of tropical rivers using macrophytes: The case of Itanhaem Basin, Sao Paulo, Brazil |
author |
Umetsu, Cristiane Akemi [UNESP] |
author_facet |
Umetsu, Cristiane Akemi [UNESP] Aguiar, Francisca C. Ferreira, Maria Teresa Cancian, Leonardo Farage [UNESP] Monteiro Camargo, Antonio Fernando [UNESP] |
author_role |
author |
author2 |
Aguiar, Francisca C. Ferreira, Maria Teresa Cancian, Leonardo Farage [UNESP] Monteiro Camargo, Antonio Fernando [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Lisbon |
dc.contributor.author.fl_str_mv |
Umetsu, Cristiane Akemi [UNESP] Aguiar, Francisca C. Ferreira, Maria Teresa Cancian, Leonardo Farage [UNESP] Monteiro Camargo, Antonio Fernando [UNESP] |
dc.subject.por.fl_str_mv |
Ecological quality Tropical catchment Macrophyte IBI Multimetric index River monitoring |
topic |
Ecological quality Tropical catchment Macrophyte IBI Multimetric index River monitoring |
description |
We developed a pilot study on the potential of aquatic plants as indicators of ecological quality in tropical rivers to provide an index of biotic integrity for monitoring, conservation, and restoration purposes. We used floristic, environmental, and anthropogenic disturbance data from a 950 km(2) river basin in the southern littoral area of Sao Paulo State, Brazil (Itanhaem River Basin), and proposed a five-step methodological framework for the development of a macrophyte index in tropical river basins. Field surveys were carried out in 137 sites (Spring 2013-2014) of Itanhaem River for the index development and in 27 sites of Itapanhad River (Spring 2015) for its validation. A total of 44 aquatic plant species were recorded in the study area, and 11 metrics were evaluated as potential core metrics of the index. Principal Component Analysis distinguished two river types mostly related to geomorphological characteristics - the Upper river type in the mountainous region (average slope 23.7 degrees) and the Middle-low river type (average slope 9.2 degrees) in the floodplain. The Upper river catchment was characterized by extensive areas occupied by banana plantations, low water conductivity, sandy substrates, and homogeneous aquatic vegetation, whereas the Middle-low river catchment had more urban settlements and displayed high nitrogen and phosphorus contents in water and sediments. The index (MIBI-ITA) is preliminary and was based on species richness and life forms (e.g. submerged hydrophytes, helophytes). MIBI-ITA could only be developed for the lowlands and displayed a high discriminatory ability for distinguishing disturbance and a good performance with external data. Bioassessment in tropical rivers require further investigation on biogeography and long-term responses of macrophyte populations to stressors, as well as knowledge-base on river typology and functional traits of macrophytes, other than morpho-anatomic traits and diversity measures. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-01 2019-10-04T12:30:39Z 2019-10-04T12:30:39Z |
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://dx.doi.org/10.1016/j.aquabot.2018.07.004 Aquatic Botany. Amsterdam: Elsevier Science Bv, v. 150, p. 53-63, 2018. 0304-3770 http://hdl.handle.net/11449/184864 10.1016/j.aquabot.2018.07.004 WOS:000444356300008 |
url |
http://dx.doi.org/10.1016/j.aquabot.2018.07.004 http://hdl.handle.net/11449/184864 |
identifier_str_mv |
Aquatic Botany. Amsterdam: Elsevier Science Bv, v. 150, p. 53-63, 2018. 0304-3770 10.1016/j.aquabot.2018.07.004 WOS:000444356300008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquatic Botany |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
53-63 |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128527559557120 |