Results 41 to 50 of about 335 (151)

Trichomycterus venulosus (Steindachner, 1915): posible extint species from the páramo de Cruz Verde (Cundinamarca, Colombia)

Biota Colombiana, 2006
The investigation was carried out between November 2004 and August 2005, and was based on the rivers Teusaca, Idaza, La Laguna (Quebrada Blanca), del Salteador creek, Marlene creek (affluent of the del Salteador creek), Blanca creek (Mataredonda-Reserve)
Saúl Prada-Pedreros, Carlos Alberto Rivera-Rondón, Jürgen Guerrero-Kommritz   +2 more
doaj   +8 more sources

Hydraulic flow resistance of epigean and hypogean fish of the family Trichomycteridae (Ostariophysi, Siluriformes) [PDF]

Subterranean Biology, 2020
Critical swimming speeds of four trichomycterid fish species from epigean and hypogean environments were analyzed and compared: Trichomycterus itacarambiensis and Ituglanis passensis, both troglobitic from underground rivers; Trichomycterus brasiliensis, from epigean rivers; and Ituglanis sp., an undescribed troglophilic species from an underground ...
Francisco Alexandre Costa Sampaio, Marina Silva Rufino, Paulo Santos Pompeu, Hersília de Andrade е Santos, Rodrigo Lopes Ferreira   +4 more
openaire   +4 more sources

Time‐calibrated relationships of a rare cave catfish (Trichomycterus rubbioli): Shedding light on troglobitic lifestyle origin in the Brazilian caatinga

Journal of Fish Biology, Volume 109, Issue 1, Page 362-370, July 2026.
Abstract Catfishes of the subfamily Trichomycterinae comprise the most diverse fish group with species adapted to live in Neotropical caves, but past evolutionary scenarios that have driven the origin of these troglobitic species remain unknown. We herein investigate the phylogenetic position of the cave‐restricted Trichomycterus rubbioli, endemic to ...
Wilson J. E. M. Costa, Paulo J. Vilardo, José Leonardo O. Mattos, Axel M. Katz, Valter M. Azevedo‐Santos, Pedro L. C. Uzeda, Rodrigo L. Ferreira   +6 more
wiley   +1 more source

Fish, upper Purus River, state of Acre, Brazil. [PDF]

Check List, 2008
The ichthyofauna of the headwaters of the main tributaries of the mighty Solimões/Amazonas River hasbeen little studied. Considering the importance of those environments for the overall fish diversity in that river system,we surveyed the composition of ...
Sousa, K. N. S., Braga, T. M. P., Zuanon, J., Anjos, H. D. B.   +3 more
doaj   +4 more sources

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

A new endemic pearl cichlid of the ‘Geophagus’ brasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River basin, southeastern Brazil

Journal of Fish Biology, Volume 108, Issue 6, Page 1687-1700, June 2026.
Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis, Jorge A. Dergam, Amanda F. Cunha, Valéria N. Machado, Tomas Hrbek, Natállia M. de F. Vicente, Victor de Queiroz, Elisabeth Henschel   +7 more
wiley   +1 more source

Population dynamics of two Andean Trichomycterus (Siluriformes: Trichomycteridae) species from Bolivia [PDF]

Neotropical Ichthyology
The species of Trichomycterus (Siluriformes: Trichomycteridae) are small catfish distributed throughout South and Central America, from Patagonia to Costa Rica, at elevations ranging from sea level to over 4,000 m.
Flavio Gallo-Cardozo, Fernando M. Carvajal-Vallejos, Matías Careaga, Laura Herbas, Edgar Goitia, Mabel Maldonado   +5 more
doaj   +1 more source

Description of Silvinichthys pedernalensis n. sp. (Teleostei, Siluriformes) from the Andean Cordillera of southern South America [PDF]

Animal Biodiversity and Conservation, 2017
Silvinichthys pedernalensis, a new species, is described from an Andean stream in Provincia San Juan, Argentina, based on its coloration pattern, and its meristic, morphometric and osteological characters. S. pedernalensis differs markedly from all other
Fernández, L., Sanabria, E. A., Quiroga, L. B.   +2 more
doaj  

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

Threatened Fishes of the World: Silvinichthys bortayro (Fernandez and de Pinna, 2005) (Trichomycteridae) [PDF]

Environmental Biology of Fishes, 2009
Fil: Fernandez, Luis Alfredo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina.
openaire   +2 more sources