Results 51 to 60 of about 4,796 (198)

Evolutionary history of the genus Rhamdia (Teleostei: Pimelodidae) in Central America

Molecular Phylogenetics and Evolution, 2002
We constructed phylogenetic hypotheses for Mesoamerican Rhamdia, the only genus of primary freshwater fish represented by sympatric species across Central America. Phylogenetic relationships were inferred from analysis of 1990 base pairs (bp) of mitochondrial DNA (mtDNA), represented by the complete nucleotide sequences of the cytochrome b (cyt b) and ...
Perdices, Anabel, Bermingham, Eldredge, Montilla, Antonia, Doadrio, Ignacio   +3 more
openaire   +3 more sources

Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei). [PDF]

, 2006
The Mexican tetra Astyanax fasciatus has evolved a variety of more or less color- and eyeless cave populations. Here we examined the evolution of the female preference for large male body size within different populations of this species, either surface-
Plath, Martin, Rohde, Matthias, Schlupp, Ingo, Schröder, Thekla, Taebel-Hellwig, Angelika   +4 more
core   +1 more source

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

Journal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave, Adán Fernando Mar‐Silva, Bruno F. Melo, Sonia Gabriela Hernández‐Ávila, Jesús M. López‐Vila, Gabriel S. C. Silva, Píndaro Díaz‐Jáimes   +6 more
wiley   +1 more source

Bibliografía argentina de peces de agua dulce. [PDF]

, 2006
Espanol: En la presente lista bibliográfica fueron recopiladas las referencias sobre los peces continentales de la Argentina, del período comprendido entre mediados del siglo XVIII y fines del año 2005.
Cuello, Mariela V., Ferriz, Ricardo A., López, Hugo Luis, Menni, Roberto C., Ponte Gómez, Justina   +4 more
core  

Evolutionary Relationships Among the Amazonian Catfish Genus Hypophthalmus Cuvier, 1829 (Siluriformes, Pimelodidae) Suggest Diversification During Plio‐Pleistocene

Zoologica Scripta, Volume 54, Issue 6, Page 840-850, November 2025.
ABSTRACT The present study evaluated the phylogenetic relationships among the six valid species of catfish of the genus Hypophthalmus, estimated the divergence times among the different taxa and assessed the processes that influenced the evolution of the group.
Bianca A. Vale, John G. Lundberg, Marcelo S. Rocha, Iracilda Sampaio, Simoni Santos   +4 more
wiley   +1 more source

Parasites Are Paramount: Vertical Trophic Positions of Parasitic Catfishes in a Tropical River Food Web

Ecology of Freshwater Fish, Volume 34, Issue 4, October 2025.
ABSTRACT The Neotropical catfish family Trichomycteridae contains parasitic fishes that include scale and mucus feeders (subfamily Stegophilinae) and blood feeders (i.e., ‘candirus’, subfamily Vandelliinae). The influence of parasitic catfishes on food web dynamics is unknown.
Carmen G. Montaña, Chase Nimee, Sophie Scott, Megan Beeksma, Kendall Hasting, Takiya Jackson, Leslie Kelso‐Winemiller, Kirk O. Winemiller   +7 more
wiley   +1 more source

Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes)

Neotropical Ichthyology
Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae.
Américo Moraes Neto, Maelin da Silva, Daniele Aparecida Matoso, Marcelo Ricardo Vicari, Mara Cristina de Almeida, Maria João Collares-Pereira, Roberto Ferreira Artoni   +6 more
doaj   +1 more source

Evaluation of indicators of exposure to contaminants in three species of Colombian catfishes (Pisces: Siluriformes)

Biota Colombiana, 2014
Mature specimens of three catfishes: Capitán de la Sabana (Eremophilus mutisii), Bagre Rayado (Pseudoplatystoma orinocoense and P. metaense) and Capaz (Pimelodus grosskopfii) (n=9-27/species) were sampled in the areas of Bogotá River, Puerto López (Meta)
Jaime González M., Miguel A. Landines, Javier Borbón, María L. Correal, Charles Sánchez, Liliana Rodríguez   +5 more
doaj   +1 more source

Hemoglobinas em silurídeos da Amazônia Central: I. Análise eletroforética dos hemolisados. [PDF]

Acta Amazonica, 1982
Resumo Os hemolisados das espécies de Silurídeos (bagres e cascudos) pertencentes às famílias: Doradidae, Auchenipteridae, Pimelodidae, Ageneiosidae, Callicthyidae e Loricariidae, foram analisados por eletroforese em gel de poliacrilamida.
Maria Isabel G. Portus, Elba Lucy Donald, Aldo Focesi Jr   +2 more
doaj   +1 more source

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan, Litz, Thomas O., Mirande, Juan Marcos   +2 more
core