Results 61 to 70 of about 2,361 (207)

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

Biotropica, 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, Sandra Bibiana Correa, Florian Wittmann, Jochen Schöngart, Maria Teresa Fernandez Piedade, Efrem Jorge Ferreira, Leonardo Maltchik   +6 more
wiley   +1 more source

A new Myleus species (Characiformes: Serrasalmidae) from the Rio Tapajós basin, Brazil

Journal of Fish Biology, 2018
Myleus pachyodus, a new serrasalmid species, is described from the Rio Teles Pires and Rio Jamanxim, both tributaries of the Rio Tapajós in Mato Grosso and Pará states, Brazil. The new species differs from all congeners by having a remarkable ontogenetic thickening of the teeth shifting from slender incisiform in juveniles to thick bulky teeth at ...
Andrade, M. C., /Jégu, Michel, Buckup, P. A., Netto-Ferreira, A. L.   +3 more
openaire   +3 more sources

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan, Litz, Thomas O., Mirande, Juan Marcos   +2 more
core  

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  

Ecological Factors and Diversification among Neotropical Characiforms [PDF]

, 2012
Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns.
Duque Escobar, Santiago Roberto, Granado Lorencio, Carlos Antonio, Guisande González, Cástor, Pelayo Villamil, Patricia, Prieto Piraquive, Edgar Francisco, Vera Rodríguez, Manuel   +5 more
core   +1 more source

Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes) from the Amazon basin

Neotropical Ichthyology
Six species of Serrasalmidae from the central Amazon, representatives of the genera Serrasalmus (S. elongatus, S. maculatus, S. cf. rhombeus, and S. rhombeus), Pygocentrus (P. nattereri), and Colossoma (C.
Celeste Mutuko Nakayama, Eliana Feldberg, Luiz Antonio Carlos Bertollo   +2 more
doaj   +1 more source

Zingiber officinale (Ginger), Curcuma longa (Turmeric) and Cymbopogon nardus (Lemon Grass) Essential Oils Have Anti‐Dactylogyrideans Potential in Colossoma macropomum Cuvier 1816 (Tambaqui)

Aquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.
ABSTRACT Essential oils are composed of secondary metabolites derived from medicinal plants and have bioactive properties, such as antiparasitic activity. This study investigated the in vitro anti‐dactylogyridean efficacy of the Zingiber officinale, Curcuma longa and Cymbopogon nardus essential oils, as well as the acute toxicity for Colossoma ...
João G. R. Luz, Dara A. P. Lacerda, Eloísa F. L. Corrêa, Gabriel F. Araújo, Rafaela F. Araújo, Francisco C. M. Chaves, Marcos Tavares‐Dias   +6 more
wiley   +1 more source

Paleogene emergence and evolutionary history of the Amazonian fossorial fish genus Tarumania (Teleostei: Tarumaniidae)

Frontiers in Ecology and Evolution, 2022
Tarumania walkerae is a rare fossorial freshwater fish species from the lower Rio Negro, Central Amazonia, composing the monotypic and recently described family Tarumaniidae.
Bruno F. Melo, Mário C. C. de Pinna, Lúcia H. Rapp Py-Daniel, Jansen Zuanon, Cristhian C. Conde-Saldaña, Fabio F. Roxo, Claudio Oliveira   +6 more
doaj   +1 more source

Une nouvelle espèce du genre Mylesinus (Pisces, Serrasalmidae), M. paraschomburgkii, décrite des bassins du Trombetas et du Uatuma (Brésil, Amazonie) [PDF]

, 1989
Une série de collectes, réalisées dans le bassin du Trombetas (Brésil, Para) et le bassin du Uatuma (Brésil, Amazonas), a permis de récolter de nombreux spécimens du genre #Mylesinus$ (Characiformes, #Serrasalmidae$) de 13 à 365 mm de longueur standard ...
Dos Santos, G.M., Ferreira, E., Jégu, Michel   +2 more
core  

Amazonian fish migration as a social–cultural–ecological process

People and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy, Thiago B. A. Couto, Natalia C. Piland, Jesús Dámaso, Stephannie Fernandes, Simone Athayde, Elizabeth P. Anderson   +6 more
wiley   +1 more source