Results 51 to 60 of about 2,322 (193)
Myxobolus sp. and Henneguya sp. (Cnidaria: Myxobolidae) natural co-infection in the kidney of Piaractus mesopotamicus(Characiformes: Serrasalmidae) [PDF]
, 2017 This study evaluated the myxozoan infection and histopathology of the kidney of freshwater fish Piaractus mesopotamicus from intensive fish farming in Brazil. A total of 55 fish were examined for myxozoan infection.
Belo, M. A. A. +4 more
core +1 more source
Neotropical Ichthyology, 2022 Recently, the large migratory fishes of the family Serrasalmidae (Piaractus brachypomus and P. orinoquensis) were described as restricted to the Orinoco and Amazon basins. Both species provide important ecosystem services.
María Doris Escobar L. +2 more
doaj +1 more source
Molecular identification of cryptic diversity in species of cis-Andean Mylossoma (Characiformes: Serrasalmidae) [PDF]
Mitochondrial DNA Part A, 2016 Mylossoma is a Serrasalmidae genus with only two current valid species in the cis-Andean region but with several available names, today considered as junior synonymous. Morphological information combined with single-locus DNA sequences of cytochrome c oxidase I gene analysed by Barcode Index Number and General Mixed Yule Coalescent model were used in ...
Mateussi, Nadayca T. B. +2 more
openaire +4 more sources
Frontiers in Genetics, 2018 The pirapitinga, Piaractus brachypomus (Characiformes, Serrasalmidae), is a fish from the Amazon basin and is considered to be one of the main native species used in aquaculture production in South America.
Paulo H. Jorge +8 more
doaj +1 more source
OS ARGULÍDEOS (CRUSTACEA: BRANCHIURA) DA AMAZÔNIA BRASILEIRA 4 ASPECTOS DA ECOLOGIA DE ARGULUS MULTICOLOR STEKHOVEN, 1937 E ARGULUS PESTIFER RINGUELET, 1948. [PDF]
Acta Amazonica, 1983 Resumo A especificidade parasitária, áreas de fixação, hospedeiros naturais, índices de infestação e variação sazonai de Argulus multicolor e Argulus pestifer foram estudados durante o período de março de 1979 a março de 1980, no Janauacá, um lago de ...
José Celso de Oliveira Malta
doaj +1 more source
Survival of purebred and hybrid Serrasalmidae under low water temperature conditions [PDF]
Aquaculture, 2018 Abstract The aim of the study was to evaluate the survival of Serrasalmidaes fish, pure and hybrid, during periods of low temperature. The experiment was carried out from June to August 2016 (51 days) in an aquaculture station of Sao Paulo Agribusiness Technology Agency, Brazil.
Fernandes, Erica Machado +6 more
openaire +3 more sources
Semina: Ciências Agrárias, 2021 Monogeneans are ectoparasites of fish with a global distribution. In farmed fish, high infestations may result in morbidity and mortality. This study investigated the histopathological effects of three species of monogeneans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri on the gills of farmed Colossoma macropomum ...
Marcos Tavares-Dias Dias +2 more
openaire +3 more sources
Diversity of monogenean parasites on gills of fishes from the Matapi River, in the Brazilian Amazon
Revista Brasileira de Parasitologia Veterinária, 2020 This study investigated the fauna of monogeneans on gills of 13 fish species from the Matapi River, Brazilian Amazon. A total 548 fish belonging to 13 species (1 Anostomidae, 3 Characidae, 1 Curimatidae, 1 Hemiodontidae, 2 Serrasalmidae, 3 Scianidae, 1 ...
Lígia Rigôr Neves +3 more
doaj +1 more source
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 +6 more
wiley +1 more source
Tooth and consequences: Heterodonty and dental replacement in piranhas and pacus (Serrasalmidae)
Evolution & Development, 2019 AbstractTooth replacement in piranhas is unusual: all teeth on one side of the head are lost as a unit, then replaced simultaneously. We used histology and microCT to examine tooth‐replacement modes across carnivorous piranhas and their herbivorous pacu cousins (Serrasalmidae) and then mapped replacement patterns onto a molecular phylogeny.
Matthew A. Kolmann +5 more
openaire +3 more sources