Results 41 to 50 of about 4,670 (210)

Addressing challenges in Hoplias cf. malabaricus (Characiformes: Erythrinidae) taxonomy and distribution in Southern Brazil with otolith shape analysis

Neotropical Ichthyology
Species of Hoplias malabaricus complex group are widely distributed in most Neotropical drainages. Some species are cryptic and difficult to identify and delimit because many morphological characters are highly homoplastic and variable.
Matheus Henrique Hamann, Matheus Oliveira Freitas, Maurício Osvaldo Moura, Luis Roberto Bueno, Vinicius Abilhoa   +4 more
doaj   +1 more source

First report about saxitoxins in freshwater fish Hoplias malabaricus through trophic exposure. [PDF]

, 2017
Cyanobacterial waterblooms, such as the saxitoxin (STX) producer Cylindrospermopsis raciborskii, have been a worldwide concern in environmental health. However, the bioaccumulation of this neurotoxin in the trophic chain is not completely known.
ASSIS, H. C. S. de, CESTARI, M. M., MAGALHÃES, V. F., OBA, E. T., RAMSDORF, W. A., RIBEIRO, C. A. O., SILVA, C. A. da   +6 more
core   +1 more source

Nematodes in Hoplerytrinus unitaeniatus, Hoplias malabaricus and Pygocentrus nattereri (pisces characiformes) in Marajó Island, Brazil Nematóides em Hoplerytrinus unitaeniatus, Hoplias malabaricus e Pygocentrus nattereri (pisces characiformes) na Ilha de Marajó, Brasil

Revista Brasileira de Parasitologia Veterinária, 2012
The aim of this study was to evaluate the tegument, musculature and mesentery of 102 specimens of Hoplerytrinus unitaeniatus, 104 of Hoplias malabaricus and 101 of Pygocentrus nattereri, from Arari Lake, Marajó Island, State of Pará, Brazil.
Raimundo Nonato Moraes Benigno, Sérgio Carmona de São Clemente, Edilson Rodrigues Matos, Roberto Magalhães Pinto, Delir Corrêa Gomes, Marcelo Knoff   +5 more
doaj   +1 more source

Incidência de metilmercúrio em hoplias malabaricus na amazônia

Revista Intertox de Toxicologia, Risco Ambiental e Sociedade, 2020
Este trabalho objetivou avaliar a incidência de metilmercúrio em Hoplias malabaricus na Amazônia Brasileira, bem como possíveis danos causados pela alta ingestão das moléculas deste poluente ambiental bioacumulativo. Trata-se de uma revisão narrativa da literatura, realizada em novembro de 2019, nas bases de dados Pubmed, BVS, LILACS, Scielo e Anais ...
Caroline Stephanie Neves Vera, Daniela de Oliveira Daltro, Vanessa da Silva Gomes, Neuza Maria Miranda dos Santos   +3 more
openaire   +1 more source

Hematologic and hepatic responses of the freshwater fish Hoplias malabaricus after saxitoxin exposure [PDF]

Toxicon, 2013
The bioaccumulation of saxitoxins (STX) in the trophic chain, mainly in freshwater, are not completely known. This work aimed to elucidate the effects of STX on Hoplias malabaricus through trophic bioassay. The fish were fed once every five days with Astyanax sp.
Helena C, Silva de Assis, Cesar A, da Silva, Eliane T, Oba, Juliana H, Pamplona, Maritana, Mela, Halina B, Doria, Izonete Cristina, Guiloski, Wanessa, Ramsdorf, Marta Margarete, Cestari   +8 more
openaire   +2 more sources

Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic considerations

Neotropical Ichthyology
Three populations of the group Hoplias malabaricus from the hydrographic basins of the São Francisco, Araguaia/Tocantins and Xingu Rivers in Brazil were analyzed using classic cytogenetic methods (Giemsa staining, C-banding and Ag-NORs) and molecular ...
Daniel Rodrigues Blanco, Roberto Laridondo Lui, Luiz Antonio Carlos Bertollo, Vladimir Pavan Margarido, Orlando Moreira Filho   +4 more
doaj   +1 more source

Edad Y Crecimiento De Hoplias Malabaricus Malabaricus (Bloch, 1794)

, 1993
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Dománico, Alejandro A., Delfino Schenke, Ricardo, Freyre, Lauce Rubén   +2 more
openaire   +1 more source

Aquatic and Terrestrial Invertebrates Support Fish Assemblages of Amazonian Streams

Freshwater Biology, Volume 71, Issue 5, May 2026.
ABSTRACT The Amazonian stream network is remarkable not only for its extent but also for its rich fish diversity. These streams are interconnected with the surrounding forests. However, key ecological aspects of Amazonian freshwater ecosystems, such as energy flows and carbon sources sustaining fish assemblages, remain poorly understood. In this study,
Pedro H. S. Basilio, Cecília G. Leal, Débora R. de Carvalho, Gabriel L. Brejão, Dennys H. C. Drager, Gilberto N. Salvador, Marcos A. Alves‐Filho, Vladimir E. Costa, Gabriel O. Ferraz, Gustavo S. Ferreira, Rafael P. Leitão, Luciano F. A. Montag, Jady V. A. S Santos, Everton C. Silva, Paulo S. Pompeu   +14 more
wiley   +1 more source

Taxonomic study of Hoplias microlepis (Günther, 1864), a trans-Andean species of trahiras (Ostariophysi: Characiformes: Erythrinidae)

Neotropical Ichthyology
The Hoplias malabaricus species group represents one of the most complexes taxonomical problems in the systematics of Neotropical fishes, including specimens widely distributed in most drainages of South America and part of Central America with great ...
George M. T. Mattox, Alessandro G. Bifi, Osvaldo T. Oyakawa   +2 more
doaj   +1 more source

Eustrongylides sp. (Nematoda, Dioctophymatoidea) parasitizing Hoplias malabaricus (Actinopterygii: Erythrinidae) collected from the state of Rio de Janeiro, Brazil

Revista Brasileira de Parasitologia Veterinária, 2019
Hoplias malabaricus (Characiformes, Erythrinidae), trahira, is a neotropical freshwater fish of economic and public health significance. A total of 45 specimens of H. malabaricus commercialized in the municipality of Magé, state of Rio de Janeiro, Brazil,
Bianca Porto Kuraiem, Marcelo Knoff, Erich Loza Telleria, Michelle Cristie Gonçalves da Fonseca, Leandro dos Santos Machado, Nathalie Costa da Cunha, Elmiro Rosendo do Nascimento, Gabrielle Fontenelle, Delir Corrêa Gomes, Sérgio Carmona de São Clemente   +9 more
doaj   +1 more source