Results 21 to 30 of about 1,598 (193)

Further records of Auchenipteridae and Pimelodidae from Suriname (Pisces: Nematognathi)

, 1985
Collections of freshwater-fishes, made in recent years in Suriname, have yielded four species of Auchenipteridae and ten species of Pimelodidae. Of the latter, two species, viz., Phractocephalus hemioliopterus and Pimelodus heteropleurus, are additions ...
Mees, G.F.
core   +2 more sources

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

Ecol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF, Melo BF, Sousa LM, Degrandi TM, Artoni RF.   +4 more
europepmc   +2 more sources

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]

Mol Ecol
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C, Reyes-Calderón A, Venail P, Britzke R, Santa-Maria MC, Araújo-Flores JM, Silman M, Fernandez LE.   +7 more
europepmc   +2 more sources

Molecular phylogeny reveals a new species of ghost electric knifefish Porotergus Ellis 1912 (Gymnotiformes: Apteronotidae), from the Amazon basin. [PDF]

J Fish Biol
Abstract A new species of ghost electric knifefish, Porotergus sambaibensis sp. nov., is described from the Javaés River, a tributary of the Araguaia River in Brazil. The new species was assigned to the genus Porotergus as the closest relative to Porotergus gimbeli through maximum likelihood reconstruction of a concatenated multilocus dataset ...
Mendonça MB, Peixoto LAW, Chamon CC, Akama A, de Santana CD.   +4 more
europepmc   +2 more sources

Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data. [PDF]

Cladistics
Abstract Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified.
Vieira Alves P, da Silva RJ, Scholz T, de Chambrier A, Luque JL, Duchenko A, Janies D, Jacob Machado D.   +7 more
europepmc   +2 more sources

Integrative morphometric and molecular analyses reveal possible genetic contamination of silver catfish populations of the genus Rhamdia in Neotropical River basins. [PDF]

J Fish Biol
Abstract Rhamdia quelen, Rhamdia branneri and Rhamdia voulezi are morphologically similar species that, until recently, were considered synonymous. Although R. quelen has wide distribution in the Neotropical region, R. branneri and R. voulezi are sympatric and endemic species of the Iguaçu River basin.
Bignotto TS, de Souza HB, da Silva Bronzim RC, Maniglia TC, Baumgartner D.   +4 more
europepmc   +2 more sources

Is there hidden genetic variability in the species of <i>Steindachneridion</i> Garavello, 2005 (Siluriformes: Pimelodidae)? [PDF]

PeerJ
Background The genus Steindachneridion, which includes large-sized freshwater pimelodid species, is endemic to the southeastern coastal drainages of South America, specifically the Paraná River and Uruguay River basins.
Matoso DA, da Silva HCM, Ferreira Júnior AL, Porto-Foresti F, Utsunomia R, do Prado FD, Artoni RF.   +6 more
europepmc   +4 more sources

Transferability of heterologous microsatellite primers in Leiarius marmoratus

Semina: Ciências Agrárias, 2020
The Amazonian Jundiá (Leiarius marmoratus) (Siluliformes: Pimelodidae) is a species of catfish with social and economic importance in some South American countries such as Brazil and Colombia. Genetic evaluation of this species is limited due to the lack
Victor César Freitas Pandolfi, Andrei Lincoln Yamachita, Felipe Pinheiro de Souza, Ed Christian Suzuki de Lima, Denise Rocha Ayres, Annaiza Braga Bignardi, Jayme Aparecido Povh, Ulisses de Pádua Pereira, Angela Maria Urrea-Rojas, Nelson Mauricio Lopera-Barrero   +9 more
doaj   +1 more source

Structural chromosome polymorphism in a Pimelodus maculatus La Cepède, 1803 population (Siluriformes, Pimelodidae) from the Paranapanema River basin, PR, Brazil Polimorfismo cromossômico estrutural em uma população de Pimelodus maculatus La Cèpede, 1803 (Siluriformes, Pimelodidae) da bacia do Rio Paranapanema, PR, Brasil

Brazilian Journal of Biology, 2007
In the present cytogenetic study of Pimelodus maculatus, 13 specimens (8 males and 5 females) from the Congonhas Stream in Paraná State, Brazil, were examined using conventional staining.
J. Mazzuchelli, AC. Swarça, AL. Dias
doaj   +1 more source

Redescriptions of two little-known pimelodid catfishes from the São Francisco River basin, Brazil: Duopalatinus emarginatus and Bagropsis reinhardti (Teleostei: Siluriformes) [PDF]

Neotropical Ichthyology
The São Francisco River basin in eastern Brazil harbors a highly endemic ichthyofauna, including the poorly known pimelodid catfishes Duopalatinus emarginatus and Bagropsis reinhardti.
Marcelo Salles Rocha, John G. Lundberg, Paulo dos Santos Pompeu, Carlos Bernardo M. Alves   +3 more
doaj   +1 more source