@article {464, title = {Notes on the electric organ discharges (EODs) of four Mormyrus-species (Osteoglossomorpha: Mormyridae) from the Nilo-Sahelo-Sudan ichthyofaunal province of Africa}, journal = {Cybium}, volume = {39}, year = {2015}, month = {05/2015}, pages = {3{\textendash}10}, chapter = {3}, abstract = {

Field studies on the electric organ discharges (EODs) of Mormyrus species are rare, likely due to their biology hindering live capture in large numbers. Here the EODs of four Nilo-Sahelo-Sudanic species, Mormyrus caschive Linnaeus, 1758, M. kannume Forssk\ål, 1775, M. hasselquistii Valenciennes, 1847 and M. rume Valenciennes,1847, are compared and discussed. Their discharges are largely equal to each other, mainly showing differences in length and peak of Fourier transformation with less pronounced differences in the relative amplitude of phases within an EOD. The discharge properties allow species discrimination, at least within eco-regions, and thus likely play a role in species recognition.

}, keywords = {electric organ discharge, EODs, mormyrids, Mormyrus}, url = {http://www.researchgate.net/profile/Timo_Moritz/publication/276247346_Notes_on_the_electric_organ_discharges_(EODs)_of_four_Mormyrus-species_(Osteoglossomorpha_Mormyridae)_from_the_Nilo-Sahelo-Sudan_ichthyofaunal_province_of_Africa/links/5553180908ae6943a}, author = {Moritz, T.} } @article {450, title = {The air-breathing behaviour of Brevimyrus niger (Osteoglossomorpha, Mormyridae)}, journal = {Journal of Fish Biology}, volume = {71}, year = {2007}, month = {Jan-07-2007}, pages = {279 - 283}, abstract = {

Brevimyrus niger is reported to breathe atmospheric air, confirming previous documentation\ of air breathing in this species. Air is taken up by rising to the water surface and gulping, or permanently resting just below the surface, depending on the environmental conditions.

}, issn = {0022-1112}, doi = {10.1111/jfb.2007.71.issue-110.1111/j.1095-8649.2007.01473.x}, url = {http://www.blackwell-synergy.com/toc/jfb/71/1http://doi.wiley.com/10.1111/j.1095-8649.2007.01473.x}, author = {Moritz, T. and Linsenmair, K. E.} } @article {412, title = {The electric organ discharges of the Petrocephalus species (Teleostei: Mormyridae) of the Upper Volta System}, journal = {Journal of Fish Biology}, volume = {74}, number = {1}, year = {2009}, note = {395IDTimes Cited:0Cited References Count:40}, month = {Jan}, pages = {54-76}, abstract = {

In this study, a first comparative investigation of all four species of Petrocephalus (P. bovei, P. bane, P. soudanensis and P. cf. pallidomaculatus) present in the Upper Volta system and their electric organ discharges (EOD) was conducted. It was found that P. bovei was the most widespread (in terms of habitat use), but in several places P. bovei, P. soudanensis and P. cf. pallidomaculatus occurred syntopically. All species emitted a triphasic signal, and with very few exceptions, the Petrocephalus species of the Upper Volta system could clearly be identified on the basis of their EOD waveforms. The most obvious differences between species in EOD waveforms were in amplitude of the last phase, total duration and fast Fourier transformation (FFT) peak frequency. No sexual dimorphism was present in the EOD of any species although external dimorphism, i.e. an indentation at the base of the anal fin of mature males, was common. The EOD waveform diversity in the Upper Volta principally resembled that found in four sympatric Petrocephalus species from the OgoouE system (Gabon) and might play a role in species recognition and speciation processes.

}, keywords = {active electrolocation, central-africa, communication, eod waveform, fishes mormyridae, gnathonemus-petersii mormyridae, osteoglossomorpha, pendjari, pollimyrus-isidori, recognition, sex-differences, speciation, variability, water conductivity, weakly electric fish, west africa}, isbn = {0022-1112}, url = {://000262516900004}, author = {Moritz, T. and Engelmann, J. and Linsenmair, K. E. and G. von der Emde} }