Results 41 to 50 of about 569 (162)
O presente trabalho teve como objetivo o estudo de copépodes parasitos de fossas nasais de peixes da planície de inundação do alto Rio Paraná. As coletas foram realizadas em diversos pontos da planície nos meses de março, junho e setembro de 2004.
Ana Carolina Figueiredo Lacerda +3 more
doaj +1 more source
Serrasalmus maculatus Kner 1858
Published as part of Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2) on page 53, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record ...
Ota, Renata Rúbia +3 more
openaire +2 more sources
Piranhas (Serrasalmus spp.) as markers of mercury bioaccumulation in Amazonian ecosystems
Mercury (Hg) concentration in fish depends on feeding strategies and age/size within the species as well as on water parameters related to acidity and Hg speciation. We chose two species of piranhas (Serrasalmus aff. eigenmanni and Serrasalmus rhombeus) to test their suitability as markers of Hg bioaccumulation.
José G, Dórea +4 more
openaire +2 more sources
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
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley +1 more source
Características reprodutivas de peixes invasores no rio Paranapanema, bacia do alto rio Paraná, sul do Brasil [PDF]
Estudos sobre biologia reprodutiva podem fornecer explicações sobre o sucesso na colonização de novas áreas, dado que características biológicas associadas às espécies invasoras podem conferir vantagem na invasão.
Diego Azevedo Zoccal Garcia +2 more
doaj +3 more sources
Serrasalmus rhombeus (Linnaeus 1766) Distribution Widespread Amazonia, plus northern drainages. Notes Barriga (1994), Galacatos et al. (2004), Jácome-Negrete (2013), Escobar-Camacho et al. (2015), Valdiviezo-Rivera et al. (2018), Jácome-Negrete et al. (2018) Jácome-Negrete et al. 2018.
Escobar-Camacho, Daniel +4 more
openaire +1 more source
Serrasalmus marginatus Valenciennes 1837
Published as part of Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2) on pages 53-54, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record ...
Ota, Renata Rúbia +3 more
openaire +2 more sources
Serrasalmus auriventris (Burmeister, 1861) NEW Overlooked taxon from Argentina ...
openaire +2 more sources
ABSTRACT This study is the first to elucidate the oocyte growth pattern of Etroplus suratensis through detailed gonad histology. Ovary samples from different maturity stages were collected from October 2023 to September 2024 from cage culture systems installed in Vembanad Lake, Kumbalangi, Kerala, India.
Mohammad Saddam Hussain +8 more
wiley +1 more source

