Results 21 to 30 of about 1,639 (179)

DNA metabarcoding assessment of Neotropical ichthyoplankton communities is marker-dependent. [PDF]

Ecol Evol, 2023
DNA metabarcoding has been applied as a rapid, cost‐effective, and accurate taxonomy tool, allowing the identification of multiple individuals simultaneously. The combined use of the three markers increased the genera detection rates by 25%–87.5%, allowing an increased taxonomic coverage and robust taxonomic identification of complex Neotropical ...
Teixeira DF, Hilário HO, Santos GB, Carvalho DC.   +3 more
europepmc   +2 more sources

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures. [PDF]

J Fish Biol
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
Freitas FL, Pereira NS, Pinheiro PB, Schroeder R, Correia AT.   +4 more
europepmc   +2 more sources

Megathylacus travassosi sp. n. e Nomimoscolex sudobim Woodland, 1935 (Cestoda - Proteocephalidea) parasitos de Pseudoplatystoma corruscans (Agassiz, 1829) (Siluriformes - Pimelodidae ) do reservatório de Itaipu e Rio Paraná, PR, Brasil) Megathylacus travassosi sp. n. and Nomimoscolex sudobim Woodland, 1935 (Cestoda - Proteocephalidea) parasites of Pseudoplatystoma corruscans (Agassiz, 1829) (Siluriformes - Pimelodidae) from the Itaipu reservoir and Parana River, Parana State, Brazil

Memorias do Instituto Oswaldo Cruz, 1992
It is described Megathylacus travassosi sp. n., parasite of Pseudoplatystoma corrusccans (Agassiz,1829), a pimelodid fish caught in Itaipu reservoir and Paraná river, Brazil.
Gilberto Cezar Pavanelli, Amilcar Arandas Rego   +1 more
doaj   +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

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin. [PDF]

J Fish Biol
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Pereira DAS, Reis RE, Fontoura NF.
europepmc   +2 more sources

Structure and diversity of endoparasitic infracommunities and the trophic level of Pseudoplatystoma corruscans and Schizodon borelli (Osteichthyes) of the high Paraná river

Memorias Do Instituto Oswaldo Cruz, 1996
One hundred and ten specimens of Pseudoplatystoma corruscans (Pimelodidae) and 582 specimens of Schizodon borelli (Anostomidae) collected in the high Paraná River were analyzed. On necropsy 74% of P.
Ricardo Takemoto, Takemoto Ricardo Massato, G C Pavanelli   +2 more
exaly   +3 more sources

An individual-based model for evolutionary effects of selective fishing applied to Pseudoplatystoma corruscans [PDF]

Physica A: Statistical Mechanics and its Applications, 2012
AbstractThis paper proposes an individual-based model that takes into account the evolutionary effects of selective fishing on exploited populations. The model is an adaptation of the Penna model based on the biology of exploited species and characteristics of fishing. Given the importance of the Pintado Pseudoplatystoma corruscans, a native species of
Santos, R. V. R. dos, Martins, S. G. F., Pompeu, P. S.   +2 more
openaire   +3 more sources

Genome Report of Emergent Fish Pathogen Edwardsiella piscicida Recovered from Pseudoplatystoma corruscans in Brazil. [PDF]

Microbiol Resour Announc, 2022
Edwardsiella piscicida is a Gram-negative bacteria belonging to the Hafniaceae family which affects several species of marine and freshwater fish. We present the complete genome of E.
Ferrari NA, Takashe JVG, Aburjaile FF, Azevedo V, da Costa MM, Brenig B, Rocha FEP, Pereira UP.   +7 more
europepmc   +2 more sources

Hybrids between Pseudoplatystoma corruscans and P. reticulatum (Siluriformes: Pimelodidae) previously reported in the Upper Paraná River are likely escapes from aquaculture farms: evidence from microsatellite markers [PDF]

Zoologia (Curitiba), 2016
The production of hybrids of the 'pintado', Pseudoplatystoma corruscans (Spix & Agassiz, 1829) and 'cachara', Pseudoplatystoma reticulatum (Eigenmann & Eigenmann, 1889) in captivity has generated many concerns about the possibility of introduction of ...
Rafael A. Baggio, Caroline B. Moretti, Andréa Bialetzki, Walter A. Boeger   +3 more
doaj   +2 more sources

Bile acids as potential pheromones in pintado catfish Pseudoplatystoma corruscans (Spix & Agassiz, 1829): eletrophysiological and behavioral studies [PDF]

Neotropical Ichthyology, 2015
Bile acids are potent olfactory and gustatory stimulants for fish. Electro-olfactogram recording was used to test whether the olfactory epithelium of pintado catfish Pseudoplatystoma corruscans is specifically sensitive to bile acids, some of which have ...
Percília Cardoso Giaquinto, Rodrigo Egydio Barreto, Gilson Luiz Volpato, Marisa Fernandes-de-Castilho, Eliane Gonçalves-de-Freitas   +4 more
doaj   +3 more sources