Tranquillizer reduces electric organ discharge frequency in a teleost fish [PDF]
Die Naturwissenschaften, 1984 Kramer B
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A new and improved electric fish finder with resources for printed circuit board fabrication [PDF]
Neotropical Ichthyology, 2019 We describe the circuit design, construction, and operation of a field-portable electric fish finder (an AC-coupled wide-band differential bio-amplifier with loudspeaker output).
Michael A. Haag +3 more
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Ecologically mediated differences in electric organ discharge drive evolution in a sodium channel gene in South American electric fishes. [PDF]
Biol Lett<p>Active electroreception — the ability to detect objects and communicate with conspecifics via the detection and generation of electric organ discharges (EODs) — has evolved convergently in several fish lineages.
Hauser FE +9 more
europepmc +2 more sources
The diversity and evolution of electric organs in Neotropical knifefishes
EvoDevo, 2022 The Gymnotiformes, also known as the South American or Neotropical knifefishes, include the strongly electric Electrophorus electricus and many other weakly electric species.
Isabelle E. Bray +2 more
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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
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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
The energetics of electric organ discharge generation in gymnotiform weakly electric fish [PDF]
Journal of Experimental Biology, 2013 SummaryGymnotiform weakly electric fish produce an electric signal to sense their environment and communicate with conspecifics. Although the generation of such relatively large electric signals over an entire lifetime is expected to be energetically costly, supporting evidence to date is equivocal.
Vielka L, Salazar +2 more
openaire +2 more sources
Electric organ discharge patterns during group hunting by a mormyrid fish [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2005 Matthew E Arnegard, Bruce A Carlson
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Flight-associated discharge pattern in a weakly electric fish, Gnathonemus petersii (Mormyridae, Teleostei) [PDF]
, 1976 A Gnathonemus petersii which is put into the tank of a Mortnyrtts rume, or of an electrically silenced G. petersii, displays a discharge rate which is only one fourth (8 Hz) the rate exhibited by an attacking, territory-defending animal.
Kramer, Bernd
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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
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