Results 71 to 80 of about 2,707 (214)

Régime alimentaire de deux espèces d' Acnodon (Characiformes, Serrasalmidae) et habitudes lépidophages de A. Normani [PDF]

, 1990
Les régimes alimentaires d'#Acnodon normani$ Gosline, 1951 du rio Tocantins (Brésil) et d'#Acnodon senai$ Jegu et Santos, 1990 du rio Jari (Brésil, Amapa) ont été déterminés à partir de l'analyse de 17 contenus stomacaux pour chacune des deux espèces ...
Jégu, Michel, Leite, R.G.
core  

Serrasalmus nigricauda

, 2008
S.
openaire   +5 more sources

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

, 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., Feldberg, E., Nakayama, C.M., Porto, J.I.R.   +3 more
core  

Serrasalmus auriventris Overlooked

, 2008
Published as part of The, Stefan Koerber, 2011, List of Freshwater Fishes from Argentina - Update 12., pp.
openaire   +3 more sources

Parasites Are Paramount: Vertical Trophic Positions of Parasitic Catfishes in a Tropical River Food Web

Ecology of Freshwater Fish, Volume 34, Issue 4, October 2025.
ABSTRACT The Neotropical catfish family Trichomycteridae contains parasitic fishes that include scale and mucus feeders (subfamily Stegophilinae) and blood feeders (i.e., ‘candirus’, subfamily Vandelliinae). The influence of parasitic catfishes on food web dynamics is unknown.
Carmen G. Montaña, Chase Nimee, Sophie Scott, Megan Beeksma, Kendall Hasting, Takiya Jackson, Leslie Kelso‐Winemiller, Kirk O. Winemiller   +7 more
wiley   +1 more source

Serrasalmus nigricauda Overlooked

, 2008
Published as part of The, Stefan Koerber, 2008, List of Freshwater Fishes from Argentina - Update 10., pp.
openaire   +2 more sources

Impacts of Hydroelectric Dams on Amazonian Fisheries: Assessing Functional Attributes in the Madeira River

River Research and Applications, Volume 41, Issue 7, Page 1493-1502, September 2025.
ABSTRACT The Madeira River is one of the main tributaries of the Amazon Basin, supporting over 1300 known fish species. Fisheries in this region play a critical role for riverine populations, serving as a primary source of income and sustenance. In 2011, the construction of the Jirau and Santo Antônio hydroelectric dams (HEDs) was completed along the ...
Ana Laura Monteiro de Souza, Rogério Fonseca, Rangel Eduardo Santos, Raniere Garcez Costa Sousa, Felipe Micali Nuvoloni, Isys Nathyally de Lima Silva, Karen Sayuri Takano, Fabrício Berton Zanchi   +7 more
wiley   +1 more source

Parasitic copepods in the nasal fossae of five fish species (Characiformes) from the upper Paraná river floodplain, Paraná, Brazil = Copépodes parasitos de fossas nasais de cinco espécies de peixes (Characiformes) da planície de inundação do alto rio Paraná, Paraná, Brasil

Acta Scientiarum: Biological Sciences, 2007
The present work had the objective to study parasitic copepods in thenasal fossae of fish from the upper Paraná river floodplain. Fish were captured in different locations of the floodplain in March, June and September, 2004.
Ana Carolina Figueiredo Lacerda, Ricardo Massato Takemoto, Maria de los Angeles Perez Lizama, Gilberto Cezar Pavanelli   +3 more
doaj  

Adjustments in population and reproductive dynamics of native and non-native congeneric species during 26 years after invasion [PDF]

Neotropical Ichthyology
We aimed to improve the understanding of the establishment of Serrasalmus marginatus (non-native), which was followed by a decrease in the abundance of Serrasalmus maculatus (native) in the upper Paraná River floodplain. We estimated age, mortality rate,
Amanda Cantarute Rodrigues, Natália Carneiro Lacerda dos Santos, Matheus Tenório Baumgartner, Luiz Carlos Gomes   +3 more
doaj   +2 more sources

Reproductive aspects of piranhas Serrasalmus spilopleura and Serrasalmus marginatus into the Upper Paraná River, Brazil

Brazilian Journal of Biology
Construction of the Itaipu Dam, 150 km downstream from Sete Quedas Falls, resulted in the drowning of that natural geographic barrier, with consequent invasion of Serrasalmus marginatus in the upper stream. This event was followed by the reduction in the
C. S. Agostinho
doaj   +1 more source