Results 31 to 40 of about 346,330 (296)

Delay-Dependent Response in Weakly Electric Fish under Closed-Loop Pulse Stimulation. [PDF]

open access: yesPLoS ONE, 2015
In this paper, we apply a real time activity-dependent protocol to study how freely swimming weakly electric fish produce and process the timing of their own electric signals. Specifically, we address this study in the elephant fish, Gnathonemus petersii,
Caroline Garcia Forlim   +3 more
doaj   +1 more source

Species recognition by the sequence of discharge intervals in weakly electric fishes of the genus Campylomormyrus (Mormyridae, Teleostei) [PDF]

open access: yes, 1994
In two Campylomormyrus species, tamandua and rhynchophorus from Central Africa, the electric organ discharge (EOD) activity was studied during the nocturnal activity phase in the laboratory. Both species have a pulse-type EOD of less than 200 μs duration
Kramer, Bernd, Kuhn, Birgit
core   +1 more source

Signal Cloaking by Electric Fish [PDF]

open access: yesBioScience, 2008
Electric fish produce weak electric fields to image their world in darkness and to communicate with potential mates and rivals. Eavesdropping by electroreceptive predators exerts selective pressure on electric fish to shift their signals into less-detectable high-frequency spectral ranges. Hypopomid electric fish evolved a signal-cloaking strategy that
Philip K, Stoddard, Michael R, Markham
openaire   +2 more sources

Shape recognition and classification in electro-sensing

open access: yes, 2013
This paper aims at advancing the field of electro-sensing. It exhibits the physical mechanism underlying shape perception for weakly electric fish. These fish orient themselves at night in complete darkness by employing their active electrolocation ...
Ammari, Habib   +3 more
core   +1 more source

Modeling the electric field of weakly electric fish [PDF]

open access: yesJournal of Experimental Biology, 2006
SUMMARYWeakly electric fish characterize the environment in which they live by sensing distortions in their self-generated electric field. These distortions result in electric images forming across their skin. In order to better understand electric field generation and image formation in one particular species of electric fish, Apteronotus ...
David, Babineau   +2 more
openaire   +2 more sources

Electrocommunication for weakly electric fish

open access: yes, 2019
This paper addresses the problem of the electro-communication for weakly electric fish. In particular we aim at sheding light on how the fish circumvent the jamming issue for both electro-communication and active electro-sensing.
Scapin, Andrea
core   +1 more source

Predation and Crypsis in the Evolution of Electric Signaling in Weakly Electric Fishes

open access: yesFrontiers in Ecology and Evolution, 2019
Eavesdropping by electroreceptive predators poses a conflict for weakly electric fish, which depend on their Electric Organ Discharge (EOD) signals both for navigation and communication in the dark.
Philip K. Stoddard   +3 more
doaj   +1 more source

Hippopotamyrus ansorgii species complex in the Upper Zambezi River System with a description of a new species, H. szaboi (Mormyridae) [PDF]

open access: yes, 2004
Specimens referable to Hippopotamyrus ansorgii sampled from the Upper Zambezi River System within Caprivi (Namibia) represent a complex of three species, two of which coexist in the Upper Zambezi River, and a third that inhabits a nearby river, the ...
Kramer, Bernd   +2 more
core   +1 more source

Feedback Control as a Framework for Understanding Tradeoffs in Biology [PDF]

open access: yes, 2014
Control theory arose from a need to control synthetic systems. From regulating steam engines to tuning radios to devices capable of autonomous movement, it provided a formal mathematical basis for understanding the role of feedback in the stability (or ...
Ankarali, Mustafa Mert   +9 more
core   +1 more source

Modeling active electrolocation in weakly electric fish

open access: yes, 2012
In this paper, we provide a mathematical model for the electrolocation in weakly electric fishes. We first investigate the forward complex conductivity problem and derive the approximate boundary conditions on the skin of the fish.
Bacher M.   +12 more
core   +3 more sources

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