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dc.contributor.authorHauser, Maríliaes_ES
dc.contributor.authorDoria, Carolina R. C.es_ES
dc.contributor.authorMelo, Larissa R. C.es_ES
dc.contributor.authorSantos, Ariel R.es_ES
dc.contributor.authorAyala, Daiana M.es_ES
dc.contributor.authorNogueira, Lorena D.es_ES
dc.contributor.authorAmadio, Sidinéiaes_ES
dc.contributor.authorFabré, Nídiaes_ES
dc.contributor.authorTorrente-Vilara, Gislenees_ES
dc.contributor.authorGarcía Vásquez, Aureaes_ES
dc.contributor.authorRenno, Jean-Françoises_ES
dc.contributor.authorCarvajal Vallejos, Fernandoes_ES
dc.contributor.authorAlonso, Juan C.es_ES
dc.contributor.authorNuñez, Jésuses_ES
dc.contributor.authorDuponchelle, Fabricees_ES
dc.description.abstractThe goliath catfish Brachyplatystoma rousseauxii has crucial economical and ecological functions in the Amazon basin. Although its life history characteristics have been studied in the Amazon, there is little information in the Madeira River basin, which holds genetically distinct populations and where dams were recently built. Using fish collected in Bolivia, Brazil and Peru, this study provides a validation of growth rings deposition and details the growth patterns of B. rousseauxii in the Madeira before the dams’ construction. Age structure and growth parameters were determined from 497 otolith readings. The species exhibits two growth rings per year and sampled fish were between 0 and 16 years old. In the Brazilian portion of the basin, mainly young individuals below 5 years old were found, whereas older fish (> 5 years) were caught only in the Bolivian and Peruvian stretches, indicating that after migrating upstream to reproduce, adults remain in the headwaters of the Madeira River. Comparing with previous publications, B. rousseauxii had a slower growth and 20 cm lower maximum standard length in the Madeira River than in the Amazon River. This study provides a baseline for future evaluation of changes in population dynamics of the species following dams closure. © 2018 Sociedade Brasileira de Ictiologia.en_US
dc.publisherInstituto de Investigaciones de la Amazonía Peruanaes_ES
dc.sourceInstituto de Investigación de la Amazonia Peruanaes_ES
dc.sourceRepositorio Institucional - IIAPes_ES
dc.subjectAnillos bianualeses_ES
dc.subjectBagre Goliates_ES
dc.subjectCiclo vitales_ES
dc.titleAge and growth of the amazonian migratory catfish Brachyplatystoma rousseauxii in the Madeira River basin before the construction of damsen_US
dc.identifier.journalNeotropical Ichthyologyes_ES
Appears in Collections:Artículos científicos en revistas indexadas

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