Results 41 to 50 of about 1,054 (146)

How does fragmentation by small dams affect stream ichthyofauna in the upper Paraná River basin? [PDF]

Neotropical Ichthyology
Since the seminal publication of the River Continuum Concept (RCC), many studies have shown the importance of habitat and longitudinal changes on fish distribution, including for the Neotropical region.
Gilberto Nepomuceno Salvador, Carlos Bernardo Mascarenhas Alves, Débora Reis de Carvalho, Paulo Santos Pompeu, Cecília Gontijo Leal, Paulo Sérgio Formagio, Robert Mason Hughes, Rosalva Sulzbacher, Rafael Pereira Leitão   +8 more
doaj   +1 more source

Peces del oriente de Antioquia, Colombia

Biota Colombiana, 2008
The eastern Antioquia region of Colombia's central mountain range, is characterize by steep altitudinal gradients and rich hydrological resources, with the majority of the drainage flowing into the middle Magdalena River.
Javier A. Maldonado-Ocampo, Úrsula Jaramillo-Villa   +1 more
doaj   +5 more sources

Morphological characterization of cranial and trunk lateral line canal pores in four species of catfish (Teleostei: Siluriformes) from the Biobío River, Chile [PDF]

Zoologia (Curitiba)
The external pores of the cranial lateral line canals and on the trunk canal are described for four Chilean species of catfish, Diplomystidae: Diplomystes arratiae, Nematogenyidae: Nematogenys inermis, Trichomycteridae: Bullockia maldonadoi and ...
Sylvia Sáez, Roberto Jaramillo, Aliro Manosalva, Jorge González   +3 more
doaj   +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

FIGURE 4 in New species of Trichomycterus (Siluriformes: Trichomycteridae) from the High Andean Plateau of Argentina

, 2018
FIGURE 4. Type locality of Trichomycterus varii, new species, río Cieneguillas, Departamento Santa Catalina, Provincia Jujuy, Argentina. Photograph by L.
Bize, Julieta Andreoli, Fernández, Luis
core   +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

Fig. 8. Rio Palmares, a in Ituglanis cahyensis, a new catfish from Bahia, Brazil (Siluriformes: Trichomycteridae)

, 2006
Fig. 8. Rio Palmares, a small stream, Prado, Bahia, northeastern Brazil, type locality of Ituglanis cahyensis.Published as part of Sarmento-Soares, Luisa M., Martins-Pinheiro, Ronaldo F., Aranda, Arion T. & Chamon, Carine C., 2006, Ituglanis cahyensis, a
Martins-Pinheiro, Ronaldo F., Sarmento-Soares, Luisa M., Aranda, Arion T., Chamon, Carine C.   +3 more
core   +1 more source

Ituglanis macunaima, a new catfish from the rio Araguaia basin, Brazil (Siluriformes: Trichomycteridae)

, 2005
Datovo, Aléssio, Landim, Maria Isabel (2005): Ituglanis macunaima, a new catfish from the rio Araguaia basin, Brazil (Siluriformes: Trichomycteridae). Neotropical Ichthyology 3 (4): 455-464, DOI: 10.1590/S1679-62252005000400002, URL: http://www.scielo.br/
Landim, Maria Isabel, Datovo, Aléssio, Datovo, Al\ue9ssio   +2 more
core   +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

A new species of Trichogenes from the rio Itapemirim drainage, southeastern Brazil, with comments on the monophyly of the genus (Siluriformes: Trichomycteridae)

Neotropical Ichthyology
A new species of the formerly monotypic genus Trichogenes is described from a high-altitude stream of the rio Itapemirim system, an isolated Atlantic drainage in the State of Espírito Santo, southeastern Brazil. Trichogenes claviger, new species, differs
Mário C. C. de Pinna, José Luiz Helmer, Heraldo A. Britski, Leandro Rodrigues Nunes   +3 more
doaj   +1 more source