Results 81 to 90 of about 12,886 (218)

Lista de peces de la provincia de Entre Ríos [PDF]

open access: yes, 2013
Fil: Arias, José D.. Facultad de Ciencia y Tecnología. Universidad Autónoma de Entre Ríos; ArgentinaFil: Demonte, Lucio D.. Facultad de Humanidades y Ciencias. Universidad Nacional del Litoral; ArgentinaFil: Miquelarena, Amalia María.
Arias, José D.   +4 more
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New Mitochondrial Genomic Resources for the Freshwater Fishes of the Sanaga River (Cameroon)

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
The Sanaga River Basin in Cameroon hosts a rich but poorly documented freshwater fish diversity. Here, we report the first complete mitochondrial genomes for nine species across four teleost orders, based on 39 specimens sequenced using Illumina NovaSeq.
Herve Tjomb   +6 more
wiley   +1 more source

Bryconamericus macarenae n. sp. (Characiformes, Characidae) from the Güejar River, Macarena mountain range, Colombia [PDF]

open access: yes, 2010
Bryconamericus macarenae sp. n. (Characiformes, Characidae) del río Güejar, sierra de La Macarana, Colombia Basándonos en 174 especímenes y utilizando características morfométricas, merísticas y osteológicas describimos una nueva especie ...
García-Alzate, C.   +3 more
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The subunit composition of the mammalian Mediator complex is not conserved in all vertebrates: Insights from evolutionary plasticity of fish genomes

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract The Mediator complex is an indispensable, multi‐subunit protein transcriptional coactivator with a central role in gene expression in Eukaryotes. Among vertebrates, its molecular structure and subunit composition are well‐known only for mammals.
Radka Symonová   +2 more
wiley   +1 more source

Two new Bryconamericus: B. cinarucoense n. sp. and B. singularis n. sp. (Characiformes, Characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species [PDF]

open access: yes, 2008
Here we describe for the first time Bryconamericus cinarucoense n. sp. and Bryconamericus singularis n. sp., two new species of Characiformesfrom the Cinaruco River, Orinoco Basin in Venezuela. B. cinarucoense n. sp.
Román-Valencia, C.   +2 more
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On traits matching and the modular organization of food web and occurrence networks

open access: yesJournal of Animal Ecology, Volume 95, Issue 5, Page 837-850, May 2026.
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas   +5 more
wiley   +1 more source

Trends in chromosome evolution of neotropical characiform fishes [PDF]

open access: yesCaryologia, 1994
SUMMARYNeotropical characiform fishes present two main trends of chromosomal evolution: some taxa show a heterogeneous pattern, with an extensive numerical and structural variation while others show a more homogeneous one, with a clear stability in their karyotype macrostructure.
P.M. Galetti   +2 more
openaire   +1 more source

A checklist of chromosome numbers and karyotypes of Amazonian freshwater fishes [PDF]

open access: yes, 1992
Une liste des nombres de chromosomes de 211 espèces de poisson du bassin amazonien est présentée. Ces espèces, appartenant à 5 ordres, sont caractérisées par une grande variabilité du nombre de chromosomes (2n = 22 à 2n = 134), par la présence de ...
Falcao, J.   +3 more
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The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa   +6 more
wiley   +1 more source

Structure et minéralisation des écailles de quelques Characiformes de Guyane (Osteichthyes, Teleostei) [PDF]

open access: yes, 1994
Les écailles de cinq espèces de Characiformes (#Leporinus friderici$, #Anastomidae$ ; #Triportheus rotundatus$, #Characidae$ ; #Curimata cyprinoides$, #Curimatidae$ ; #Hoplias aimara$, #Erythrinidae$ ; #Myleus romboidalis$, #Serrasalmidae$) ont été ...
Meunier, F.J.
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