Journal of Comparative Physiology A

, Volume 189, Issue 9, pp 685–692

Gradual frequency rises in interacting black ghost knifefish, Apteronotus albifrons

Authors

    • Deptartment of Clinical Specialties, Faculty of MedicineUniversity of Alcalá
    • Proteome CenterUniversity of Rostock
Original Paper

DOI: 10.1007/s00359-003-0445-8

Cite this article as:
Serrano-Fernández, P. J Comp Physiol A (2003) 189: 685. doi:10.1007/s00359-003-0445-8

Abstract

The present paper highlights the relationship between social status and production of gradual frequency rises in interacting Apteronotus albifrons. The gradual frequency rise production was mathematically inferred and a discrete classification deliberately avoided. The results showed little gradual frequency rise production before the hierarchy settlement. Afterwards, only the dominant fish kept this gradual frequency rise production at low levels, while the subdominant fish drastically increased it in all following interaction contexts. The hypothesis of gradual frequency rises being involved in communication as submissive signals was thus strengthened.

Keywords

Apteronotus Electric fish Electrocommunication EOD GFR

Abbreviations

EOD

electric organ discharge

FM

frequency modulation

GFR

gradual frequency rise

IQR

interquartile range

JAR

jamming avoidance response

Copyright information

© Springer-Verlag 2003