Results 61 to 70 of about 2,957 (131)

Consensus on future research directions in the phylum Rotifera

open access: yesLimnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Rotifers play key roles in aquatic ecosystems, yet significant uncertainty remains about their diversity and evolution, and further evidence is needed to determine how reliably their responses to global change and human impacts can inform conservation.
Rafael L. Macêdo   +17 more
wiley   +1 more source

Programa de estadías cortas en el INICNE : un acercamiento a la ictiología

open access: yes, 2023
El río Paraná forma una de las unidades hidrogeográficas que constituyen la Cuenca del Plata, siendo la más extensa con alrededor de 394 especies de peces.
Bertrán, Paula   +5 more
core  

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

La Ictiología Argentina en Imágenes: I-Siglo XIX [PDF]

open access: yes, 2014
ProBiota genera este modesto documento con el propósito de compartirlo con el “Universo ictiológico” y con aquellos que investigan y describen la historia de la ciencia regional.

core  

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

La Ictiología Argentina en Imágenes: II-SigloXX (1900-1950). [PDF]

open access: yes, 2014
ProBiota genera este modesto documento con el propósito de compartirlo con el “Universo ictiológico” y con aquellos que investigan y describen la historia de la ciencia regional.

core  

Linked collectors and determiners for: Museo de Ictiología de la Universidad Tecnológica Indoamérica (MZUTI).

open access: yes
Natural history specimen data linked to collectors and determiners held within, "Museo de Ictiología de la Universidad Tecnológica Indoamérica (MZUTI)".
Bionomia
core   +4 more sources

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

Modified techniques used for microsatellite and AFLP for the population study of divers species at the Sinu river fish, Colombia

open access: yesRevista Colombiana de Biotecnología, 2004
Few genetic conservation studies carried out in Colombia have applied molecular biology techniques. Protocols and modifications arising from the genetic study of four fish species from the Sinú river basin are presented as guidelines for future work in ...
Lamprea Natalia   +4 more
doaj   +2 more sources

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