A fish-based biotic integrity index for assessment of lowland streams in southeastern Brazil

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dc.contributor.authorCasatti, Lilian [UNESP]
dc.contributor.authorFerreira, Cristiane P. [UNESP]
dc.contributor.authorLangeani, Francisco [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:03:47Z
dc.date.available2014-05-20T14:03:47Z
dc.date.issued2009-05-01
dc.description.abstractThis study was carried out to develop and apply a fish-based biotic integrity index to assess lowland streams in a highly deforested region of the Upper Parana River basin. Fifty-six first-order segments were randomly selected for environmental and fish evaluation. Because previous analysis had identified the main type of effect on the streams of the region as physical habitat degradation, 22 qualitatively biological attributes were selected and tested over a physical condition gradient between reference and degraded sites. Sensitivity and redundancy of each attribute revealed that five metrics were adequate for discriminating higher quality from degraded sites. of the fifty-six streams assessed, one (2%) was classified as good, four (7%) as fair, ten (18%) as poor, and forty-one (73%) as very poor, indicating that, on a regional scale, many aspects of biological integrity are altered, indicative of serious degradation. Considering that first-order segments amount to 11,000 km in total, it is noticeable that 10,000 km of the stream segments have no more than half of the expected conditions, indicative of poor or very poor biotic integrity conditions. Possible strategies of mitigating this scenario are discussed.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Bot & Zool, IBILCE,Lab Ictiol, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Bot & Zool, IBILCE,Lab Ictiol, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCPF
dc.description.sponsorshipIdCNPq: 141028/2007-6
dc.description.sponsorshipIdFAPESP: 06/01479-4
dc.format.extent173-189
dc.identifierhttp://dx.doi.org/10.1007/s10750-008-9656-x
dc.identifier.citationHydrobiologia. Dordrecht: Springer, v. 623, n. 1, p. 173-189, 2009.
dc.identifier.doi10.1007/s10750-008-9656-x
dc.identifier.issn0018-8158
dc.identifier.lattes8041011456158217
dc.identifier.lattes4433495820388025
dc.identifier.urihttp://hdl.handle.net/11449/22435
dc.identifier.wosWOS:000263076300012
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofHydrobiologia
dc.relation.ispartofjcr2.165
dc.relation.ispartofsjr0,896
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectIchthyofaunaen
dc.subjectHabitat qualityen
dc.subjectConservationen
dc.subjectIBIen
dc.subjectBiological monitoringen
dc.titleA fish-based biotic integrity index for assessment of lowland streams in southeastern Brazilen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes8041011456158217
unesp.author.lattes4433495820388025
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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Artigos - Zoologia e Botânica - IBILCE