A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil

Melo, Marcelo R. S.; Buckup, Paulo Andreas; Oyakawa, Osvaldo Takeshi

doi:10.1590/1982-0224-20160014

Cited by 9 publications

(19 citation statements)

References 14 publications

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“…The bPTP analysis delimited each of the 11 valid species of Characidium and split C. alipioi , whereas ABGD delimited 10 and differed from the former by the inclusion of C. lagosantense and C. oiticicai within the C. zebra and C. lauroi groups, respectively (Figure ). Both C. lauroi and C. oiticicai belong to the C. lauroi species group that includes other congeners such as C. japuhybense , C. schubarti and C. travassosi , all from coastal Atlantic rivers of southeastern Brazil (Melo, Buckup, et al, ). Although interspecific relationships are beyond the scope of this study, analyses recognize three major species groups and the closer relationship among C. gomesi and C. fasciatum , the latter result corroborating the published morphological phylogeny (Buckup, ).…”

Section: Discussionmentioning

confidence: 99%

“…However, despite evident progress and advances in taxonomy, the systematics of Characidium represents a major challenge in Neotropical ichthyology (Leitão & Buckup, ; Melo & Espíndola, ; Melo & Oyakawa, ; Melo, Buckup, & Oyakawa, ; Zanata & Ohara, ). Although the presence of a basicaudal spot supports the monophyly of Characidium (Buckup, ), the interspecific phylogenetic relationships remain unresolved (Buckup, ).…”

Section: Introductionmentioning

confidence: 99%

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Species delimitation in Neotropical fishes of the genus Characidium (Teleostei, Characiformes)

et al. 2018

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Neotropical darters of the genus Characidium have a complex systematic history with several examples of sympatry throughout their distribution range in Neotropical freshwaters. Although various species within the genus have been used as models to investigate chromosomal evolution and biogeography, species boundaries and relationships still remain uncertain. Here, we use mitochondrial DNA sequences to perform species delimitation analyses within Characidium and test previous hypotheses of species richness within the Characidium zebra complex and among sympatric morphotypes of C. alipioi. Results indicate high genetic distances within tested species complexes and revealed the presence of strongly supported lineages such as the large C. lauroi group from southeastern Brazil. This suggests that the evolutionary history of these groups may be correlated with biogeographic history. Analyses also reveal that three geographically isolated populations of C. zebra represent a single species, leading us to reject prior hypothesis of multiple species. Species delimitation using mitochondrial data strongly supports the presence of two sympatric species within C. alipioi in southeastern Brazil despite limited morphological variation and conserved chromosomal patterns. These results provide a framework to further the study of systematics and evolution within Characidium.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Species delimitation in Neotropical fishes of the genus Characidium (Teleostei, Characiformes)

et al. 2018

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“…This species belongs in the A. scabripinnis species group. Melo, Buckup & Oyakawa, 2016 Characidium travassosi Melo, Buckup & Oyakawa (2016) Material examined: Table 1; Appendix Table A1; Figure 4 (C and D).…”

Section: Classificationmentioning

confidence: 99%

Inventory of the ichthyofauna from the Jordão and Areia river basins (Iguaçu drainage, Brazil) reveals greater sharing of species than thought

Frota¹,

Gonçalves²,

Deprá³

et al. 2016

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Recent sampling on fish from the headwaters of the Jordão and Areia rivers, combined with collection databases and specialized literature reports, yielded the first species inventory. Both basins reflect the high endemism rate associated with the Iguaçu River. However, four species previously thought to be restricted to the Jordão River basin are now known to also occur in the basin of the Areia River: Astyanax jordanensis Vera Alcaraz, Pavanelli & Bertaco, 2009; Characidiumtravassosi Melo, Buckup & Oyakawa, 2016; Jenynsia diphyes Lucinda, Ghedotti & Graça, 2006; and Trichomycterus igobi Wosiacki & de Pinna, 2008. This suggests an ancestral connection between the tributaries of the Jordão and Areia rivers, with putative drainage rearrangements resulting from the uplift of the Serra da Esperança. The endemic fauna of this region is presently threatened by invasive species, the construction of dams, and other human activities.

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“…The slopes of the upper rio Paraná system and the rio Ribeira de Iguape basin share the presence of Hypostomus ancistroides (Ihering, 1911) (Oyakawa et al 2005). The Iguaçu and Ribeira de Iguape river basins share the presence of Characidium travassosi Melo, Buckup & Oyakawa, 2016 (Frota et al 2016b;Melo et al 2016). Now, the geographic distribution of A. bifasciatus is added to the mentioned examples since this species also occurs in all drainage systems mentioned.…”

Section: Discussionmentioning

confidence: 99%

A new inventory for fishes of headwater streams from the rio das Cinzas and rio Itararé basins, rio Paranapanema system, Paraná, Brazil

et al. 2020

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The rio das Cinzas and rio Itararé basins are important tributaries of the rio Paranapanema, a major left-bank tributary of the upper rio Paraná basin. The upper reaches of both drainages intersect the northern portion of the APA Escarpa Devoniana (Devonian Escarpment Environment Protection Area, EPA), an area considered crucial for the preservation of biodiversity. This study aimed to provide an ichthyofaunistic inventory for headwater streams of the rio das Cinzas and rio Itararé basins, both within and off of the borders of the EPA, increasing the knowledge about the species already known from streams in the rio Paranapanema system. We found 32 fish species, representing five orders and 12 families. Siluriformes was the richest order followed by Characiformes. Ten species presented high abundance of sampled individuals, contributing with 85.0% of all specimens. Most species were classified as occasional (captured in less than 25% of the samples) and only two species were classified as constant (captured in more than 50% of samples), which may reflect the altitudinal gradient. We did not record any introduced species in the sampled streams, reinforcing the need of, at least, maintaining the original area of the EPA. We expanded the geographic distribution of Astyanax bifasciatus to the upper rio Paraná system, confirming the cases of faunal exchange among several drainage systems in the limits of the Ponta Grossa Arch. Finally, we identified three putatively undescribed species that show a large biodiversity knowledge shortfall for the region studied.

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A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil

Cited by 9 publications

References 14 publications

Species delimitation in Neotropical fishes of the genus Characidium (Teleostei, Characiformes)

Species delimitation in Neotropical fishes of the genus Characidium (Teleostei, Characiformes)

Inventory of the ichthyofauna from the Jordão and Areia river basins (Iguaçu drainage, Brazil) reveals greater sharing of species than thought

A new inventory for fishes of headwater streams from the rio das Cinzas and rio Itararé basins, rio Paranapanema system, Paraná, Brazil

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