Waveform Discrimination in the Electric Fish Eigenmannia: Sensitivity for the Phase Differences Between the Spectral Components of a Stimulus Wave [PDF]
, 1991 Eigenmannia lineata is a tropical South American gymnotiform fish that is both electrogenic and electroreceptive. Its electric organ generates a constant-frequency wave discharge (EOD) that is sexually dimorphic in waveform and harmonic content ...
Kramer, Bernd +3 more
core +1 more source
Perception and coding of envelopes in weakly electric fishes [PDF]
Journal of Experimental Biology, 2013 SummaryNatural sensory stimuli have a rich spatiotemporal structure and can often be characterized as a high frequency signal that is independently modulated at lower frequencies. This lower frequency modulation is known as the envelope. Envelopes are commonly found in a variety of sensory signals, such as contrast modulations of visual stimuli and ...
Sarah A, Stamper +2 more
openaire +2 more sources
A Spark in the Dark: Uncovering Natural Activity Patterns of Mormyrid Weakly Electric Fish
Frontiers in Ecology and Evolution, 2022 To understand animal ecology, observation of wildlife in the natural habitat is essential, but particularly challenging in the underwater realm. Weakly electric fishes provide an excellent opportunity to overcome some of these challenges because they ...
Stefan Mucha +3 more
doaj +1 more source
Evidence for mutual allocation of social attention through interactive signaling in a mormyrid weakly electric fish. [PDF]
Proc Natl Acad Sci U S A, 2018 Significance Interactive electric signaling between mormyrid weakly electric fish by means of echoing a conspecific’s signals has been discussed both in the context of jamming avoidance during active electrolocation and as a ...
Worm M +5 more
europepmc +2 more sources
Linking active sensing and spatial learning in weakly electric fish.
, 2021 Engelmann J, Wallach A, Maler L. Linking active sensing and spatial learning in weakly electric fish. Current opinion in neurobiology. 2021;71:1-10.Weakly electric fish can learn the spatial layout of their environment using only their short-range ...
Engelmann, Jacob ; https://orcid.org/ +2 more
core +1 more source
Intra- versus inter-sexual selection in the dimorphic electric organ discharges of the snoutfish Marcusenius altisambesi (Mormyriformes, Teleostei) [PDF]
, 2010 Marcusenius pongolensis (South Africa) and M. altisambesi (Upper Zambezi/Okavango) differ in the sex difference of their electric organ discharges (EODs). It is permanent and graded in the former and seasonally dimorphic in the latter.
Kramer, Bernd +2 more
core +1 more source
A Mathematical Model for Electrolocation in Weakly Electric Fishes
BIO Web of Conferences, 2016 Weakly electric fishes usually live in the rivers of Africa and South America. They are able to orient themselves thanks to an electric sense, called electrolocation, that consist of emitting an electric field and sensing it at the surface of their skin.
Boulier Thomas
doaj +1 more source
Comparable ages for the independent origins of electrogenesis in African and South American weakly electric fishes. [PDF]
PLoS ONE, 2012 One of the most remarkable examples of convergent evolution among vertebrates is illustrated by the independent origins of an active electric sense in South American and African weakly electric fishes, the Gymnotiformes and Mormyroidea, respectively ...
Sébastien Lavoué +5 more
doaj +1 more source
First record of Gymnotus henni (Albert, Crampton and Maldonado, 2003) in Panama: phylogenetic position and electric signal characterization [PDF]
Check List, 2013 We present the first record of the weakly electric fish Gymnotus henni in Panama, which also represents the first record of Gymnotus in the Pacific slope of the country. One specimen was collected in a tributary of the Chucunaque River in the Tuira basin.
Fernando Alda +6 more
doaj +3 more sources
Motor patterns during active electrosensory acquisition
Frontiers in Behavioral Neuroscience, 2014 Motor patterns displayed during active electrosensory acquisition of information seem to be an essential part of a sensory strategy by which weakly electric fish actively generate and shape sensory flow.
Volker eHofmann +5 more
doaj +1 more source