Results 171 to 180 of about 3,173 (211)

Gene expression correlates and mechanistic insights into electric organ discharge duration changes in mormyrid electric fish.

J Exp Biol
Losilla M, Gallant JR.
europepmc   +1 more source

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Molecular phylogeny of the ghost knifefishes (Gymnotiformes: Apteronotidae)

Molecular Phylogenetics and Evolution, 2019
Ghost knifefishes (Gymnotiformes: Apteronotidae) are weakly electric fishes that possess a high-frequency, neurogenic electric organ discharge. They are found throughout the humid Neotropics from Panama to Argentina and are most diverse and abundant in the channels of large lowland rivers.
Maxwell J Bernt, James S Albert
exaly   +3 more sources

Time-Comparator Neural Circuits of Gymnotiform Electric Fishes

Zoological Science, 2023
Weakly electric fish possess electrosensory neural systems that are dedicated to detect microsecond time differences between sensory signals. Many features of this timing system, such as electroreceptor encoding, time-locked responses, and time-comparator neural circuit, are shared by closely related as well as distantly related electric fishes.
openaire   +2 more sources

Gymnotiformes

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., Taphorn, Donald C., Holm, Erling, Gilliam, James F., Lamphere, Bradley A., López-Fernández, Hernán   +5 more
openaire   +1 more source

Gymnotiformes

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   +1 more source

Postembryonic development of the cerebellum in gymnotiform fish

The Journal of Comparative Neurology, 1996
In contrast to adult mammals, adult teleost fish regularly generate new neurons and glial cells in many brain regions. A previous quantitative mapping of the proliferation zones in the brain of adult Apteronotus leptorhynchus (Teleostei, Gymnotiformes) has shown that 75% of all mitotically active cells are situated in the cerebellum (Zupanc and ...
Zupanc, G. ; https://orcid.org/0000-0001-8715-9994, Horschke, I., Ott, R., Rascher, G.   +3 more
openaire   +3 more sources

Model-based total evidence phylogeny of Neotropical electric knifefishes (Teleostei, Gymnotiformes)

Molecular Phylogenetics and Evolution, 2016
This study provides the most comprehensive Model-Based Total Evidence (MBTE) phylogenetic analyses of the clade Gymnotiformes to date, reappraising relationships using a dataset comprised of six genes (5277bp) and 223 morphological characters, and an ingroup taxon sample including 120 of 212 valid species representing 34 of the 35 extant genera.
Maxwell J Bernt, Claudio Oliveira, James S Albert   +2 more
exaly   +5 more sources

Gymnotiformes

2009
Published as part of Matamoros, Wilfredo A., Schaefer, Jacob F. & Kreiser, Brian R., 2009, Annotated checklist of the freshwater fishes of continental and insular Honduras, pp.
Matamoros, Wilfredo A., Schaefer, Jacob F., Kreiser, Brian R.   +2 more
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Sexual Dimorphism in Apteronotus Bonapartii (Gymnotiformes: Apteronotidae)

Copeia, 2006
Here we document sexual dimorphism in both external measurements of the head and discrete features of the skull in Apteronotus bonapartii. To quantify morphological variation in A. bonapartii, ten external morphometric measurements were taken from the head and body of 58 individuals.
Hilton, Eric J., Fernandes, Cristina Cox
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Gymnotiformes Berg 1940

2019
Gymnotiformes Gymnotidae Gymnotus carapo Linnaeus Pomphorhynchus ...
Hernández-Orts, Jesús S., Kuchta, Roman, Semenas, Liliana, Crespo, Enrique A., González, Raúl A., Aznar, Francisco J.   +5 more
openaire   +1 more source