43
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          ABSTRACT The book “Peixes da planície de inundação do alto rio Paraná e áreas adjacentes” represents the most cohesive data compilation for the rio Paraná floodplain. However, considering the dynamicity of the taxonomy of freshwater fishes, several new records and taxonomic changes occurred along the past years. Therefore, the results of that publication were revisited, providing an update of the species list, their taxonomic status, records and geographic distribution, and also new keys for genera and species. The species included were those recorded in the rio Paraná basin, from the mouth of the rio Paranapanema to the Itaipu Reservoir, following the general methodology presented in the book. A total of 10 orders, 41 families, 126 genera, and 211 species were registered, with an increase of one order, six families, 14 genera, and 29 species when compared to the book. Additionally, four new genera recently described, five synonymization proposals, 14 new identifications, four new combinations, 12 new species recently described, 34 new records, and nine misidentified species were recorded. These results are associated with the redirection of human and financial resources to that area, which enabled monitoring and intensive exploration of its watercourses; as well as training of taxonomists, and new taxonomic resolutions.

          Translated abstract

          RESUMO O livro “Peixes da planície de inundação do alto rio Paraná e áreas adjacentes” representa a compilação de dados mais coesa para esta área. No entanto, considerando a dinamicidade da taxonomia de peixes de água doce, vários novos registros e alterações taxonômicas ocorreram ao longo desses dez anos. Assim, os resultados daquela publicação foram revisitados, fornecendo uma atualização da lista, status taxonômico, registros e distribuição geográfica das espécies, além de novas chaves de identificação para espécies e gêneros. Foram incluídas as espécies registradas na bacia do rio Paraná, entre a foz do rio Paranapanema e o reservatório de Itaipu, seguindo a metodologia geral apresentada no livro. Foi registrado um total de 10 ordens, 41 famílias, 126 gêneros e 211 espécies, com um aumento de uma ordem, seis famílias, 13 gêneros e 29 espécies quando comparado à primeira versão. Além disso, quatro gêneros novos descritos recentemente, cinco sinonimizações, 14 novas propostas de identificação, quatro novas combinações, 12 espécies novas descritas recentemente, 34 novos registros e nove espécies identificadas erroneamente foram registradas. Estes resultados estão associados ao redirecionamento de recursos humanos e financeiros para esta área, o que permitiu o monitoramento e exploração intensiva de seus corpos d’água; bem como a formação de taxonomistas e novas resoluções taxonômicas.

          Related collections

          Most cited references170

          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          Phylogenetic classification of bony fishes

          Background Fish classifications, as those of most other taxonomic groups, are being transformed drastically as new molecular phylogenies provide support for natural groups that were unanticipated by previous studies. A brief review of the main criteria used by ichthyologists to define their classifications during the last 50 years, however, reveals slow progress towards using an explicit phylogenetic framework. Instead, the trend has been to rely, in varying degrees, on deep-rooted anatomical concepts and authority, often mixing taxa with explicit phylogenetic support with arbitrary groupings. Two leading sources in ichthyology frequently used for fish classifications (JS Nelson’s volumes of Fishes of the World and W. Eschmeyer’s Catalog of Fishes) fail to adopt a global phylogenetic framework despite much recent progress made towards the resolution of the fish Tree of Life. The first explicit phylogenetic classification of bony fishes was published in 2013, based on a comprehensive molecular phylogeny (www.deepfin.org). We here update the first version of that classification by incorporating the most recent phylogenetic results. Results The updated classification presented here is based on phylogenies inferred using molecular and genomic data for nearly 2000 fishes. A total of 72 orders (and 79 suborders) are recognized in this version, compared with 66 orders in version 1. The phylogeny resolves placement of 410 families, or ~80% of the total of 514 families of bony fishes currently recognized. The ordinal status of 30 percomorph families included in this study, however, remains uncertain (incertae sedis in the series Carangaria, Ovalentaria, or Eupercaria). Comments to support taxonomic decisions and comparisons with conflicting taxonomic groups proposed by others are presented. We also highlight cases were morphological support exist for the groups being classified. Conclusions This version of the phylogenetic classification of bony fishes is substantially improved, providing resolution for more taxa than previous versions, based on more densely sampled phylogenetic trees. The classification presented in this study represents, unlike any other, the most up-to-date hypothesis of the Tree of Life of fishes. Electronic supplementary material The online version of this article (doi:10.1186/s12862-017-0958-3) contains supplementary material, which is available to authorized users.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Floods increase similarity among aquatic habitats in river-floodplain systems

              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling

              Background With nearly 1,100 species, the fish family Characidae represents more than half of the species of Characiformes, and is a key component of Neotropical freshwater ecosystems. The composition, phylogeny, and classification of Characidae is currently uncertain, despite significant efforts based on analysis of morphological and molecular data. No consensus about the monophyly of this group or its position within the order Characiformes has been reached, challenged by the fact that many key studies to date have non-overlapping taxonomic representation and focus only on subsets of this diversity. Results In the present study we propose a new definition of the family Characidae and a hypothesis of relationships for the Characiformes based on phylogenetic analysis of DNA sequences of two mitochondrial and three nuclear genes (4,680 base pairs). The sequences were obtained from 211 samples representing 166 genera distributed among all 18 recognized families in the order Characiformes, all 14 recognized subfamilies in the Characidae, plus 56 of the genera so far considered incertae sedis in the Characidae. The phylogeny obtained is robust, with most lineages significantly supported by posterior probabilities in Bayesian analysis, and high bootstrap values from maximum likelihood and parsimony analyses. Conclusion A monophyletic assemblage strongly supported in all our phylogenetic analysis is herein defined as the Characidae and includes the characiform species lacking a supraorbital bone and with a derived position of the emergence of the hyoid artery from the anterior ceratohyal. To recognize this and several other monophyletic groups within characiforms we propose changes in the limits of several families to facilitate future studies in the Characiformes and particularly the Characidae. This work presents a new phylogenetic framework for a speciose and morphologically diverse group of freshwater fishes of significant ecological and evolutionary importance across the Neotropics and portions of Africa.
                Bookmark

                Author and article information

                Journal
                ni
                Neotropical Ichthyology
                Neotrop. ichthyol.
                Sociedade Brasileira de Ictiologia (Maringá, PR, Brazil )
                1679-6225
                1982-0224
                2018
                : 16
                : 2
                : e170094
                Affiliations
                [3] Maringá Paraná orgnameUniversidade Estadual de Maringá orgdiv1Programa de Pós-Graduação em Biologia Comparada Brazil
                [4] Maringá Paraná orgnameUniversidade Estadual de Maringá orgdiv1Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura Brazil
                [1] Maringá Paraná orgnameUniversidade Estadual de Maringá orgdiv1Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais Brazil renata_ota@ 123456yahoo.com.br
                [2] Maringá Paraná orgnameUniversidade Estadual de Maringá orgdiv1Departamento de Biologia Brazil weferson@ 123456nupelia.uem.br
                Article
                S1679-62252018000200202 S1679-6225(18)01600200202
                10.1590/1982-0224-20170094
                ea368ca0-630e-40df-9136-81a830b377de

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 12 April 2018
                : 02 August 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 174, Pages: 0
                Product

                SciELO Brazil

                Categories
                Original Articles

                Distribução geográfica,Chave de identificação,Diversidade ictiológica,Espécies não nativas,Taxonomia,Geographical distribution,Ichthyological diversity,Key of identification,Non-native species,Taxonomy

                Comments

                Comment on this article