Results 31 to 40 of about 412 (157)

Ocorrência de dois citotipos em Serrasalmus spilopleura Kner, 1858 (characiformes, serrasalmidae) da região de confluência dos Rios Negro e Solimões, Amazonas, Brasil [PDF]

open access: yesActa Amazonica, 2000
Descreve-se pela primeira vez o cariótipo de exemplares de S. spilopleura da Amazônia Central. Todos os indivíduos analisados apresentaram número diplóide igual a 60 cromossomos, em conformidade com os dados da espécie obtidos em indivíduos da bacia do ...
Celeste Mutuko NAKAYAMA   +2 more
doaj   +1 more source

Hearing capacities and morphology of the auditory system in Serrasalmidae (Teleostei: Otophysi) [PDF]

open access: yesScientific Reports, 2018
AbstractLike all otophysan fishes, serrasalmids (piranhas and relatives) possess a Weberian apparatus that improves their hearing capacities. We compared the hearing abilities among eight species of serrasalmids having different life-history traits: herbivorous vs. carnivorous and vocal vs. mute species.
Mélotte, Geoffrey   +4 more
openaire   +4 more sources

Distribuição sazonal das larvas de Mylossoma aureum e Μ. duriventre (osteichthyes: serrasalmidae) na Costa do Catalão, Rio Amazonas, Amazonas, Brasil [PDF]

open access: yesActa Amazonica, 2000
A distribuição sazonal das larvas de Mylossoma aureum e M. duriventre (Osteichthyes: Serrasalmidae), foi estudada na costa do Catalão, rio Amazonas durante três anos.
Edinbergh Caldas de OLIVEIRA
doaj   +1 more source

Redescription and Geographical Distribution of the Endangered Fish Ossubtus xinguense Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River. [PDF]

open access: yesPLoS ONE, 2016
The monotypic species Ossubtus xinguense was originally described based on scarce material putatively divided into juveniles and adults. Ossubtus xinguense has a restricted distribution and was previously known only from a few rapids downstream of the ...
Marcelo C Andrade   +4 more
doaj   +1 more source

New host records and description of the egg of Anacanthorus penilabiatus (Monogenea, Dactylogyridae)

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Anacanthorus penilabiatus is referred parasitizing the type-host Piaractus mesopotamicus (Serrasalmidae) and two new hosts, Colossoma macropomum and C.
MC Pamplona-Basilio, A Kohn, VA Feitosa
doaj   +1 more source

Performance of tambacu hybrid (♂Piaractus mesopotamicus x ♀Colossoma macropomum) and its parental pacu (Piaractus mesopotamicus) evaluated in cages under different feeding programmes

open access: yesAquaculture Reports, 2020
We evaluated the growth and body traits of pacu and tambacu hybrid reared in cages and fed through different feeding programmes. Six treatments in a factorial scheme, with two genetic groups (pacu and tambacu) and three feeding programmes, were tested in
Rafael Vilhena Reis Neto   +5 more
doaj   +1 more source

New Host, geographical record and a synonym for Phyllodistomum Spatula Odhner, 1902 (Trematoda, Gorgoderidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1984
In the present note Phyllodistomum spatula Odhner, 1902 is recorded for the first time from Brazil and in a New host Colossoma macropomum (Cuvier, 1818) (Pisces, serrasalmidae), and Plyllodistomum spatulaeforme Odhner, 1902 is considered its synonym.Na ...
Berenice M. M. Fernandes
doaj   +1 more source

Serrasalmidae

open access: yes, 2023
FAMILY Serrasalmidae Colossoma macropomum (Cuvier, 1816); Introduced; Cachama; Introduced to river basins of Central and Southern Luzon Island; Guerrero 2014; NE Piaractus brachypomus (Cuvier, 1818); Introduced; Pirapitinga; Introduced to river basins of Central and Southern Luzon Island; Guerrero 2014; NE Pygocentrus nattereri Kner, 1858; Introduced ...
openaire   +2 more sources

Macroevolutionary consequences of karyotypic changes in the neotropical Serrasalmidae fishes (Ostariophysi, Characiformes) diversification

open access: yesGenetica, 2023
Abstract In the Neotropical region, one of the most diverse families of freshwater fishes is the monophyletic Serrasalmidae. Karyotypically, the family shows high diversity in chromosome numbers (2n = 54 to 64). However, little is discussed about whether the chromosomal changes are associated with cladogenetic events within this family.
Uedson Pereira, Jacobina   +3 more
openaire   +2 more sources

Serrasalmidae Bleeker 1859

open access: yes, 2021
Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp.
openaire   +2 more sources

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