Results 11 to 20 of about 2,449 (227)

Data supporting phylogenetic reconstructions of the Neotropical clade Gymnotiformes [PDF]

open access: yesData in Brief, 2016
Data is presented in support of model-based total evidence (MBTE) phylogenetic reconstructions of the Neotropical clade of Gymnotiformes “Model-based total evidence phylogeny of Neotropical electric knifefishes (Teleostei, Gymnotiformes)” (Tagliacollo et
Victor A. Tagliacollo   +4 more
doaj   +6 more sources

Dimorfismo sexual em Siluriformes e Gymnotiformes (Ostariophysi) da Amazônia Sexual dimorfism in Amazonian Siluriformes and Gymnotiformes (Ostariophysi) [PDF]

open access: yesActa Amazonica, 2005
No presente trabalho é feito um levantamento dos casos de dimorfismo sexual em Siluriformes e Gymnotiformes. Este levantamento se restringe às formas Neotropicais, com ênfase mais especificamente, às da Amazônia.
Lúcia H. Rapp Py-Daniel   +1 more
doaj   +5 more sources

Species diversity of gymnotiform fishes (Gymnotiformes, Teleostei) in Colombia

open access: yesBiota Colombiana, 2003
Neotropical electric fishes (Teleostei, Gymnotiformes), also called American knifefishes, are an important component of the nocturnal ichthyological fauna in Middle and South America.
Javier Alejandro Maldonado-Ocampo   +1 more
doaj   +14 more sources

Gymnotiformes

open access: yes, 2013
Published as part of Phillip, Dawn A. T., Taphorn, Donald C., Holm, Erling, Gilliam, James F., Lamphere, Bradley A. & López-Fernández, Hernán, 2013, Annotated list and key to the stream fishes of Trinidad & Tobago, pp.
Phillip, Dawn A. T.   +5 more
openaire   +3 more sources

Gymnotiformes Berg 1940

open access: yes, 2019
Gymnotiformes Gymnotidae Gymnotus carapo Linnaeus Pomphorhynchus ...
Hernández-Orts, Jesús S.   +5 more
openaire   +3 more sources

Gymnotiformes

open access: yes, 2008
Order Gymnotiformes Family Gymnodontidae Electrophorus electricus Scutalatus magniancoratus (BR) Gymnotus carapo Diechodactylus joaberi (BR) Family Hypopomidae Brachyhypopomus brevirostris (= Hypopomus brevirostris) Urocleidoides hypopomi (AR)
Cohen, Simone C., Kohn, Anna
openaire   +2 more sources

X1X1X2X2/X1X2Y sex chromosome systems in the Neotropical Gymnotiformes electric fish of the genus Brachyhypopomus [PDF]

open access: yesGenetics and Molecular Biology, 2015
Several types of sex chromosome systems have been recorded among Gymnotiformes, including male and female heterogamety, simple and multiple sex chromosomes, and different mechanisms of origin and evolution.
Adauto Lima Cardoso   +2 more
doaj   +2 more sources

Sexual dimorphism in the electric knifefish, Gymnorhamphichthys rondoni (Rhamphichthyidae: Gymnotiformes) [PDF]

open access: yesActa Amazonica, 2019
Sexual dimorfism refers to morphological differences between males and females of a species. It may be a result of different selection pressures acting on either or both sexes and may occur in any sexually-reproducing dioecious species, including fishes.
Elisa Queiroz GARCIA, Jansen ZUANON
doaj   +4 more sources

The Active Electric Sense of Pulse Gymnotiformes

open access: yes, 2020
Pulse Gymnotiformes generate discrete pulsatile electric discharges to polarize nearby objects, which in turn projects electric images onto a cutaneous electroreceptor mosaic.
Caputi, A.A.
openaire   +2 more sources

The untold story of the caudal skeleton in the electric eel (ostariophysi: gymnotiformes: electrophorus). [PDF]

open access: yesPLoS ONE, 2013
Alternative hypotheses had been advanced as to the components forming the elongate fin coursing along the ventral margin of much of the body and tail from behind the abdominal region to the posterior margin of the tail in the Electric Eel, Electrophorus ...
Carlos David de Santana   +2 more
doaj   +2 more sources

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