Results 61 to 70 of about 2,997 (135)

La Colección Nacional de Ictiología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia (MACN-ICT)

open access: yes, 2016
Se describe el desarrollo histórico de la Colección Nacional de Ictiología,depositada en la División Ictiología del Museo Argentinode Ciencias Naturales B. Rivadavia, repasando los aportes de losprincipales investigadores que laboraron en ella. Se revisa
Ferriz, Ricardo Alberto   +2 more
core   +1 more source

Ecological aspects of Lebiasina erythrinoides (Characiformes: Lebiasinidae) from an andean piedmont stream in Colombia

open access: yesUniversitas Scientiarum, 2016
The present study describes ecological aspects of Lebiasina erythrinoides; 200 individuals were sampled throughout an annual hydrological cycle from October 2008 to September 2009 in La Calaboza stream, a Piedmont tributary of the Rio Cravo Sur.
Javier Alejandro Maldonado Ocampo   +2 more
doaj   +1 more source

Fossil freshwater fishes from the Pliocene of northern Colombia and the palaeogeography of northern South America

open access: yesPapers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Freshwater fishes from the northwestern Colombian Andes are reported from the Pliocene Sincelejo and Ware formations. A total of 10 taxa have been identified, involving two orders, five families and nine genera. Characters from dental morphology, fin spines and cranial bones are provided as taxonomic tools for the study of fossil fishes.
Gustavo A. Ballen   +6 more
wiley   +1 more source

Dieta y reproducción de Bryconamericus caucanus (Characiformes: Characidae) en la Quebrada La Venada, Río Quindío, Colombia

open access: yesRevista Mvz Cordoba, 2017
Objetivo. Se analizó la ecología trófica y reproductiva de Bryconamericus caucanus en la quebrada la Venada, Rio Quindío, Alto Cauca, Colombia. Materiales y métodos. Los ejemplares se recolectaron entre enero y diciembre del 2013.
Cristian Román P.   +1 more
doaj   +1 more source

Disentangling Environmental, Spatial and Niche Influences on Fish Beta Diversity Along the Sandy Beaches of an Amazonian River

open access: yesFreshwater Biology, Volume 71, Issue 7, July 2026.
ABSTRACT Beta diversity is an important descriptor of community structuring and it plays a crucial role for understanding the patterns and processes shaping biodiversity at multiple spatial extents. We investigated the influence of local, spatial, landscape factors and niche characteristics on fish beta diversity along the Acre River in Acre, Brazil ...
Ronaldo S. Silva   +9 more
wiley   +1 more source

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

open access: yesJournal of Fish Biology, Volume 109, Issue 1, Page 146-164, July 2026.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros   +6 more
wiley   +1 more source

ProBiota | Serie Técnica y Didáctica | Guías de ictiología: biogeografía

open access: yes, 2014
Recopilación de imágenes, gráficos y fragmentos de trabajos sobre ictiología argentina.Facultad de Ciencias Naturales y ...
López, Hugo Luis   +1 more
core  

DESARROLLO DE LA ICTIOLOGIA: EXTENSION HACIA LA ENSEÑANZA BÁSICA y MEDIA EN CHILE ICHTHYOLOGY DEVELOPMENT: EXTENSION TO ELEMENTARY AND HIGH SCHOOL TEACHING IN CHILE

open access: yesGayana, 2005
Con el objeto de hacer extensivos los conocimientos ictiológicos e incrementar las posibilidades de desarrollo de esta disciplina en nuestro país, se propone la creación de un Programa Educativo a Distancia para la enseñanza de la Ictiología ...
Laura G. Huaquín
doaj  

Ichthyofauna of piedmont and savannah environments in the Casanare River drainage, Orinoco Basin, Colombia

open access: yesBiota Colombiana, 2018
Currently, only 20 fish species have been recorded from the Casanare River, which is one of the main tributaries of the Meta River drainage. To characterize the fish assemblages of this river, samplings were carried out at 35 collecting stations in low ...
Jhon Zamudio   +4 more
doaj   +1 more source

Diversidad y variación estacional de peces en la cuenca baja del río Nanay, Perú

open access: yesRevista Peruana de Biología, 2011
El presente trabajo informa sobre la diversidad de peces en la cuenca baja del rio Nanay, tributario del río Amazonas. Esta zona está sometida a la extracción indiscriminada de peces con usos ornamentales y de consumo directo.
Ericka Correa, Hernán Ortega
doaj   +1 more source

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