Results 1 to 10 of about 11,881,799 (134)
Population Variation in Steroid Hormone-Related Gene Expression and Sexually Dimorphic Communication in the Electric Fish Apteronotus albifrons. [PDF]
J Exp Zool A Ecol Integr PhysiolABSTRACT The development and maintenance of sexually dimorphic behavior often depends on gonadal steroids. Interspecific variation in the magnitude of behavioral sex differences may be mediated by differences in steroid action on neural circuits controlling behavior.
Proffitt MR, Smith GT.
europepmc +2 more sources
Mitochondrial genomes of the South American electric knifefishes (Order Gymnotiformes). [PDF]
Mitochondrial DNA B Resour, 2016 Three complete mitochondrial genomes of South American electric fishes (Gymnotiformes), derived from high-throughput RNA sequencing (RNA-Seq), are reported herein. We report the complete mitochondrial genome of the bluntnose knifefish Brachyhypopomus n.sp. VERD, determined from newly sequenced data.
Elbassiouny AA +8 more
europepmc +4 more sources
Co-adaptation of electric organ discharges and chirps in South American ghost knifefishes (Apteronotidae). [PDF]
J Physiol Paris, 2016 Animal communication signals that simultaneously share the same sensory channel are likely to co-evolve to maximize the transmission of each signal component. Weakly electric fish continuously produce a weak electric field that functions in communication.
Petzold JM, Marsat G, Smith GT.
europepmc +4 more sources
Species diversity of gymnotiform fishes (Gymnotiformes, Teleostei) in Colombia
Biota 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 +13 more sources
Knifefish’s suction makes water boil [PDF]
Scientific Reports, 2020 Víctor Manuel Ortega-Jiménez
exaly +2 more sources
Development of the electric organ in embryos and larvae of the knifefish, Brachyhypopomus gauderio
Developmental Biology, 2020 Ana Correia +2 more
exaly +2 more sources
South American electric knifefishes of the genus Archolaemus (Ostariophysi, Gymnotiformes): undetected diversity in a clade of rheophiles [PDF]
Zoological Journal of the Linnean Society, 2012 Vari, Richard P., Santana, Carlos David De, Wosiacki, Wolmar B. (2012): South American electric knifefishes of the genus Archolaemus (Ostariophysi, Gymnotiformes): undetected diversity in a clade of rheophiles. Zoological Journal of the Linnean Society 165 (3): 670-699, DOI: 10.1111/j.1096-3642.2012.00827.x, URL: http://dx.doi.org/10.1111/j.1096-3642 ...
RICHARD P. VARI +2 more
openaire +4 more sources
Applied Bionics and Biomechanics, Volume 2023, Issue 1, 2023., 2023 The demand for high‐performance underwater thrusters in marine engineering is increasing. The concealed, mobile, and efficient underwater ability of fish provides many directions for research. The black ghost knifefish uses only wavy ventral fins to swim and can hover and roll in the water.
Jie Zhou +8 more
wiley +1 more source
Ecology and Evolution, Volume 11, Issue 22, Page 15468-15476, November 2021., 2021 Abstract Archolaemus, one of the five genera of Neotropical freshwater fish of the family Sternopygidae (Gymnotiformes), was long considered a monotypic genus represented by Archolaemus blax. Currently, it consists of six species, most of them occurring in the Amazon region. There are no cytogenetic data for species of this genus. In the present study,
Paula Pinto Rodrigues +6 more
wiley +1 more source
Journal of Comparative Neurology, Volume 529, Issue 8, Page 1810-1829, June 2021., 2021 Being widespread across different brain systems, the neuromodulatory action of acetylcholine plays a critical role in a vast range of neural processes such as learning and memory, attention, motor control, and sensory processing. In this study, we describe the spatial distribution of cholinergic neurons throughout the brain of the weakly electric fish,
Brenda Toscano‐Márquez +4 more
wiley +1 more source