Temporal fish community responses to two cascade run-of-river dams in the Madeira River, Amazon basin

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dc.citation.issue8
dc.citation.volume10
dc.contributor.authorCella-Ribeiro, Ariana
dc.contributor.authorDoria, Carolina Rodrigues da Costa
dc.contributor.authorDutka-Gianelli, Jynessa
dc.contributor.authorAlves, Hellison
dc.contributor.authorTorrente-Vilara, Gislene [UNIFESP]
dc.coverageHoboken
dc.date.accessioned2020-09-01T13:21:10Z
dc.date.available2020-09-01T13:21:10Z
dc.date.issued2017
dc.description.abstractWe examined responses from shore fish assemblages and bottom channel fish assemblages before and after 2 cascade run-of-river dams in the Madeira River, in the Amazon. Those dams were installed in a river corridor where historical factors, represented by the presence of the Teotonio and Jirau falls, were the best predictors of the fish fauna assemblage composition. Jirau and Santo Antonio were the first dams constructed with Kaplan horizontal bulb turbines in the Amazon. These bulb turbines have the ability to operate by forming small reservoirs known as run-of-river, which should minimize impacts on fish assemblages. Overall, there were major short-term impacts in shore fish assemblages by increasing species richness, abundance, and biomass in experimental catches. Shore fish assemblages dissimilarities before and after the dams' closure were also noticed and were related to an increase in water temperature and dissolved oxygen. However, the historical factor represented by Teotonio Fall is still the best predictor of fish assemblage dissimilarities, combined with effects of dams' closure. Bottom channel fish assemblage dissimilarities can be explained only by dams closure and are related especially to changes in fish species abundance inside the reservoirs. Our study revealed an increase in native opportunistic fish species and changes in fish assemblage structure at local scale. Kaplan horizontal bulb turbines employed in run-of-river dams seem to be less deleterious than vertical axis turbines typically used in accumulation reservoirs, and should be preferred in the face of burgeoning new hydroelectricity development plans for rivers across the Amazon basin.en
dc.description.affiliationPrograma Posgrad Rede Biodiversidade & Biotecnol, Porto Velho, RO, Brazil
dc.description.affiliationUniv Fed Rondonia, Programa Posgrad Desenvolvimento Reg & Meio Ambie, Porto Velho, Brazil
dc.description.affiliationUniv Fed Rondonia, Dept Ciencias Biol, Porto Velho, Brazil
dc.description.affiliationUniv Florida, Fisheries & Aquat Sci, Sch Forest Resources & Conservat, Gainesville, FL USA
dc.description.affiliationUniv Fed Sao Paulo, Dept Ciencias Marinhas, Santos, Brazil
dc.description.affiliationUniv Fed Amazonas, Dept Ciencias Biol, Manaus, Amazonas, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Ciencias Marinhas, Santos, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFAPEAM
dc.description.sponsorshipIDFAPESP: 2016/07910-0
dc.description.sponsorshipIDFAPEAM: 62.01947/2013
dc.format.extent-
dc.identifierhttps://dx.doi.org/10.1002/eco.1889
dc.identifier.citationEcohydrology. Hoboken, v. 10, n. 8, p. -, 2017.
dc.identifier.doi10.1002/eco.1889
dc.identifier.issn1936-0584
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/58107
dc.identifier.wosWOS:000417099800004
dc.language.isoeng
dc.publisherWiley
dc.relation.ispartofEcohydrology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCascade reservoirsen
dc.subjectFish assemblage compositionen
dc.subjectFreshwater fishen
dc.subjectHorizontal bulb turbinesen
dc.subjectSpecies richnessen
dc.subjectWhite watersen
dc.titleTemporal fish community responses to two cascade run-of-river dams in the Madeira River, Amazon basinen
dc.typeinfo:eu-repo/semantics/article
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