Results 21 to 30 of about 311 (149)

Population Genomics in Rhamdia quelen (Heptapteridae, Siluriformes) Reveals Deep Divergence and Adaptation in the Neotropical Region. [PDF]

Genes (Basel), 2020
Rhamdia quelen, a Neotropical fish with hybridization between highly divergent mitochondrial DNA (mtDNA) lineages, represents an interesting evolutionary model. Previous studies suggested that there might be demographic differences between coastal lagoons and riverine environments, as well as divergent populations that could be reproductively isolated.
Ríos N, Casanova A, Hermida M, Pardo BG, Martínez P, Bouza C, García G.   +6 more
europepmc   +6 more sources

Fish, Cubatão River basin, Atlantic Rainforest stream, Paraná, Brazil [PDF]

Check List, 2009
The freshwater ichthyofauna of the Cubatão River basin was studied. This drainage belongs to the Atlantic rainforestbiome in Paraná state coastal region, southern Brazil.
Bastos, L. P., Abilhoa, V.
doaj   +4 more sources

Heptapteridae Gill 1861

, 2023
Published as part of Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D. & Matamoros, Wilfredo A., 2023, Continental fishes of Nicaragua: diversity, distribution and conservation status; with an annotated and illustrated checklist of species and an identification guide ...
Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D., Matamoros, Wilfredo A.   +7 more
openaire   +2 more sources

DNA metabarcoding of mock communities highlights potential biases when assessing Neotropical fish diversity

Environmental DNA, Volume 5, Issue 6, Page 1351-1361, November 2023., 2023
The performance of a taxonomy‐free approach using ASV/MOTUs was not as precise as assigning DNA reads to species using a curated 12S library that includes approximately 100 fish species since more than one ASV/MOTU was observed for the same specimen.
Heron Oliveira Hilário, Izabela Santos Mendes, Naiara Guimarães Sales, Daniel Cardoso Carvalho   +3 more
wiley   +1 more source

New phylogenetic insights into the African catfish families Mochokidae and Austroglanididae

Journal of Fish Biology, Volume 100, Issue 5, Page 1171-1186, May 2022., 2022
Abstract Several hundred catfish species (order: Siluriformes) belonging to 11 families inhabit Africa, of which at least six families are endemic to the continent. Although four of those families are well‐known to belong to the ‘Big‐Africa clade’, no previous study has addressed the phylogenetic placement of the endemic African catfish family ...
Frederic D. B. Schedel, Albert Chakona, Brian L. Sidlauskas, Michael O. Popoola, Nadine Usimesa Wingi, Dirk Neumann, Emmanuel J. W. M. N. Vreven, Ulrich K. Schliewen   +7 more
wiley   +1 more source

Conservation threats and future prospects for the freshwater fishes of Ecuador: A hotspot of Neotropical fish diversity

Journal of Fish Biology, Volume 99, Issue 4, Page 1158-1189, October 2021., 2021
ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Windsor E. Aguirre, Gabriela Alvarez‐Mieles, Fernando Anaguano‐Yancha, Ricardo Burgos Morán, Roberto V. Cucalón, Daniel Escobar‐Camacho, Iván Jácome‐Negrete, Pedro Jiménez Prado, Enrique Laaz, Katherin Miranda‐Troya, Ronald Navarrete‐Amaya, Fredy Nugra Salazar, Willan Revelo, Juan F. Rivadeneira, Jonathan Valdiviezo Rivera, Edwin Zárate Hugo   +15 more
wiley   +1 more source

Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems [PDF]

Brazilian Journal of Biology, 2015
AbstractThe aim of this study was to compare the food composition of Rhamdia quelen in four distinct order rivers. It was performed at a low part at the basin of the Sorocaba river in systems classified as first (Anastácio stream), second (Nego stream), fifth (Tatuí river) and sixth (Sorocaba river) orders.
Villares Junior, GA, Goitein, R
openaire   +5 more sources

Heptapteridae Gill 1861

, 2021
Family Heptapteridae Gill, 1861. Three-Barbeled Catfishes; Barbudos de Agua Dulce. 3 G, 5 S.
openaire   +1 more source

Occurrence of natural triploidy in Rhamdia quelen (Siluriformes, Heptapteridae)

Genetics and Molecular Research, 2010
Five specimens of Rhamdia quelen collected from the Lindóia Stream, PR, Brazil, were cytogenetically analyzed. The diploid chromosome number found was 58, including 30 metacentric, 16 submetacentric, 10 subtelocentric, and 2 acrocentric chromosomes. Supernumerary or B chromosomes, frequently observed in this fish group, were not detected.
J R, Tsuda, V P O, de Moraes, L, Giuliano-Caetano, A L, Dias   +3 more
openaire   +2 more sources

Heptapteridae

, 2013
Family Heptapteridae Primary Rhamdia guatemalensis (Günther, 1864) (Filin/Juilin, Guatemalan chulin) Hydrographical zones: Río Lempa, Río Grande de San Miguel Departments: La Libertad, San Salvador, San Miguel, Morazán, Santa Ana, Chalatenango, Cuscatlán Rhamdia laticauda (Kner, 1858) (Filin, Filespine chulín) Hydrographical zone: Río ...
Mcmahan, Caleb D., Matamoros, Wilfredo A., Álvarez Calderón, Francisco S., Henríquez, Wendy Yamileth, Recinos, H. Michelle, Chakrabarty, Prosanta, Barraza, Enrique, Herrera, Néstor   +7 more
openaire   +2 more sources