Results 21 to 30 of about 258 (154)

Ontogenetic changes in mouth morphology triggers conflicting hypotheses of relationships in characid fishes (Ostariophysi: Characiformes)

Neotropical Ichthyology, 2017
Bryconamericus lethostigmus is the type-species of the monotypic genus Odontostoechus, diagnosed in part based on the presence of a unique tooth series in the premaxilla. Recently a new proposal of classification of the Stevardiinae placed Odontostoechus
Alice Hirschmann, Nelson J. R. Fagundes, Luiz R. Malabarba   +2 more
doaj   +1 more source

Conserved number of U2 snDNA sites in Piabina argentea, Piabarchus stramineus and two Bryconamericus species (Characidae, Stevardiinae)

Neotropical Ichthyology, 2018
The chromosomal location of 5S rRNA and U2 snRNA genes of Piabina argentea, Piabarchus stramineus and two Bryconamericus species from two different Brazilian river basins were investigated, in order to contribute to the understanding of evolutionary ...
Diovani Piscor, Carlos Alexandre Fernandes, Patricia P. Parise-Maltempi   +2 more
doaj   +1 more source

Phylogeographic Diversity of the Lower Central American Cichlid Andinoacara coeruleopunctatus (Cichlidae)

International Journal of Evolutionary Biology, Volume 2012, Issue 1, 2012., 2012
It is well appreciated that historical and ecological processes are important determinates of freshwater biogeographic assemblages. Phylogeography can potentially lend important insights into the relative contribution of historical processes in biogeography. However, the extent that phylogeography reflects historical patterns of drainage connection may
S. Shawn McCafferty, Andrew Martin, Eldredge Bermingham, R. Craig Albertson   +3 more
wiley   +1 more source

Fish Species Richness in Lowland Streams with a Geothermal Input Phenomenon, Sarapiquí de Heredia, Costa Rica

International Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
Lowland streams of the Caribbean Costa Rican slope are naturally enriched by minerals and solutes such as phosphorus, a phenomenon known as geothermal input. The resulting stream phosphorus gradient affects the food web by altering primary production, leading to complex biotic and abiotic interactions.
Jimena Golcher Benavides, Maurizzio Protti Quesada, L. Wang   +2 more
wiley   +1 more source

Evaluation of the use of Ancistrus brevipinnis (Loricariidae) as a bioindicator of water quality in the Ilha river, RS, Brazil

Acta Scientiarum: Biological Sciences, 2023
The use of fish as bioindicators of the effect of contaminants in the aquatic environment is usual. However, detritivorous species are less used for environmental monitoring.
Jorge Henrique Burghausen, Gabriela Zimmermann Prado Rodrigues, Luciane Beatris Mentges Staudt, Juliana Machado Kayser, Mateus Santos de Souza, Diulliane de Jesus Borba, Arthur Postai, Ana Júlia Stumm, Anelise Schneider, Rafael Linden, Günther Gehlen   +10 more
doaj   +1 more source

Bryconamericus thomasi

, 2006
Bryconamericus thomasi: ILPLA 1447, (2) 45.2-49.2 mm SL, Río de Las Conchas, Metán, Jujuy, Argentina, coll.: A. Miquelarena et al, October 1988.
Lucila C. Protogino, Amalia M. Miquelarena, Hugo L. López   +2 more
openaire   +2 more sources

Bryconamericus iheringii

, 2018
{"references": ["Pavanelli CS, Graca WJ, Zawadzki CH, Britski HA, Vidotti AP, Avelino GS, Verissimo S. Fishes from the Corumba Reservoir, Paranaiba River drainage, upper rio Parana basin, State of Goias, Brazil. Check List. 2007; 3 (1): 58 - 64."]}
Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da, Pavanelli, Carla Simone   +3 more
openaire   +2 more sources

Bryconamericus lethostigmus

, 2017
Published as part of Hirschmann, Alice, Fagundes, Nelson J. R. & Malabarba, Luiz R., 2017, Ontogenetic changes in mouth morphology triggers conflicting hypotheses of relationships in characid fishes (Ostariophysi: Characiformes), pp. 1-16 in Neotropical Ichthyology 15 (1) on pages 4-10, DOI: 10.1590/1982-0224-20160073, http://zenodo.org/record ...
Hirschmann, Alice, Fagundes, Nelson J. R., Malabarba, Luiz R.   +2 more
openaire   +2 more sources

Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil

Neotropical Ichthyology
Two new species of Bryconamericus are described from southern Brazil: B. patriciae, from the headwaters of rio Pelotas (rio Uruguay drainage) and rio das Antas (laguna dos Patos drainage) and B. ecai from lower rio Taquari drainage.
José Francisco Pezzi da Silva
doaj   +1 more source

Fish Assemblages in an Urbanized Neotropical Basin: Influence of Environmental Factors Across Dry and Rainy Periods

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT This study investigated the effects of season and environmental disturbances on fish communities in neotropical rivers of the Sorocaba basin, a Sub‐Basin of the Paraná River in Southeast Brazil, based on sampling 1196 individuals from 49 species, including two non‐native and one threatened with extinction.
Natalia S. Alves, Daiane E. Cavallari, Welber S. Smith   +2 more
wiley   +1 more source