Results 61 to 70 of about 1,833 (196)

Cytogenetic Trends in Two Families of the Neotropical Catfishes: Heptapteridae and Pseudopimelodidae (Siluriformes)

Zebrafish, 2018
Several neotropical Siluriformes groups suffered important taxonomic revisions based on the evaluation of morphological and molecular characteristics that allow the construction of new phylogenetic hypothesis. In the present study were cytogenetically analyzed six species belonging to Heptapteridae (Cetopsorhamdia iheringi, Phenacorhamdia tenebrosa ...
González Gouveia, Juceli, Oliveira de Moraes-Manécolo, Vivian Patrícia, Swarça, Ana Claudia, Fenocchio, Alberto Sergio, Giuliano-Caetano, Lucia, Dias, Ana Lucia   +5 more
openaire   +3 more sources

Ichthyofaunistic composition of the Quilombo river, tributary of the Mogi-Guaçu river, upper Paraná river basin, southeastern Brazil [PDF]

Um estudo sobre a composição ictiofaunística do rio Quilombo foi realizado com o intuito de identificar quais espécies de peixes habitam a bacia, com que freqüência tais espécies são encontradas e verificar variações na distribuição longitudinal desta ...
APONE, Fernando, GARAVELLO, Julio Cesar, OLIVEIRA, Alexandre Kannebley de   +2 more
core   +1 more source

Comportamento alimentar da cobra d’água amazônica Helicops hagmanni Roux, 1910 (Reptilia: Squamata: Colubridae: Hydropsini)

Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2008
O gênero Helicops inclui, atualmente, 15 espécies, das quais onze ocorrem na floresta amazônica. Helicops hagmanni se alimenta de peixes e apresenta hábitos noturnos, mas dados detalhados sobre seu comportamento alimentar e ecologia são escassos.
Marcelo José Sturaro, Jerriane Oliveira Gomes   +1 more
doaj   +1 more source

Length‐Weight Relationships of Sixteen Fish Species From the Upper Tietê Basin, Southeaster Brazil

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
This study investigated the length‐weight relationship (LWR) of 16 fish species from the Upper Tietê Basin under the influence of the Atlantic Forest biome, aiming to provide updated morphometric data and contribute to the knowledge of Neotropical ichthyofauna. 2811 specimens were collected and distributed across five orders and 10 families.
Luís Gustavo Nogueira de Carvalho, Beatriz Carine Gazzola Prieto, Camila Silva Bento, Dalton Jorge Neief Ganem, Matheus Oliveira Fagaça, Ariane Almeida Vaz, Welber Senteio Smith, Georgii Ruban   +7 more
wiley   +1 more source

Ichthyofauna of the Quarai-Chico creek, Uruguai river middle basin, Espinilho State Park, Rio Grande do Sul, Brazil [PDF]

Biotemas, 2005
With the aim of identifying the composition of the ichthyofauna from Quarai-Chico creek (a tributary of the middle Uruguai river located in the municipality of Barra do Quarai), seasonal samplings were taken over the period of one year, from April 1997 ...
Thiago Bortoluzzi Pinto, Luis Roberval Bortoluzzi Castro, Luciano Gonçalves Brasil, Enrique Querol, Marcus Vinicius Morini Querol, Claudia Lisiane de Oliveira Azevedo, Edward Frederico Castro Pessano, Flavia Vessozi Corrêa   +7 more
doaj  

Ichthyological ecoregions of Argentina [PDF]

, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis, Montenegro, Marcelo J., Morgan, Cecilia C.   +2 more
core  

Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA

Environmental DNA, Volume 6, Issue 1, January–February 2024.
We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza, Alonso Reyes‐Calderon, Patrick Venail, Julio M. Araújo‐Flores, Mónica C. Santa‐Maria   +4 more
wiley   +1 more source

A new species of Aphanoblastella (Monogenea: Dactylogyridae) parasitic on Rhamdia quelen (Siluriformes: Heptapteridae) from Southeastern Brazil = Nova espécie de Aphanoblastella (Monogenea: Dactylogyridae) parasito de Rhamdia quelen (Siluriformes: Heptapteridae) do sudeste do Brasil

Acta Scientiarum: Biological Sciences, 2009
Aphanoblastella juizforense sp. nov. is described in the gills of the heptapterid fish Rhamdia quelen (Quoy et Gaimard, 1824) from the Paraibuna River, Juiz de Fora, Minasn Gerais State, Brazil.
Adriano Reder de Carvalho, Luiz Eduardo Roland Tavares, José Luis Luque   +2 more
doaj  

Efficacy of eugenol and the methanolic extract of Condalia buxifolia during the transport of the silver catfish Rhamdia quelen

Neotropical Ichthyology
This study evaluated extracts of Condalia buxifolia as anesthetics for the silver catfish Rhamdia quelen. The effectiveness of eugenol and of the methanolic extract (ME) of C. buxifolia during the transport of this species was also assessed.
Alexssandro Geferson Becker, Mauro Alves da Cunha, Luciano de Oliveira Garcia, Carla Cristina Zeppenfeld, Thaylise Vey Parodi, Graciela Maldaner, Ademir Farias Morel, Bernardo Baldisserotto   +7 more
doaj   +1 more source

Resposta das comunidades de peixes a intensa seca em riachos de savana brasileira [PDF]

, 2017
Os riachos são submetidos a intensas mudanças na sua estrutura física ao longo das estações. Secas intensas nos períodos de estiagem tem sido frequentes e potencialmente deletérias para as espécies aquáticas.
Silva, Dianne Michelle Alves da, Teresa, Fabrício Barreto   +1 more
core   +1 more source