Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Electric Organ Discharge Activity of Resting and Stimulated Gnathonemus Petersii (Mormyridae)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Behaviour

1. The electric organ discharge (EOD) activity of 12 isolated Gnathonemus petersii was analyzed by means of interpulse interval histograms (IIH), joint interval histograms (JIIH) as well as by measurements of the instanaeous frequency of consecutive intervals. 2. The IIH of 10 resting fish was characterized by three modes and in two fish by two modes. The higher frequency mode (25-62 Hz) corresponds to burst-like frequency increases (BA) of the EOD, the lower are due to inter-burst activity (IBA). 3. Frequency ranges of modes are remarkably constant during following days and even months. Because of the individual specific position of modes, the IIH renders it possible to distinguish individuals from one another. 4. JIIH computation of the EOD of resting G. petersii reveals that besides a random activity, two types of correlation exist between consecutive intervals (regularization). The first, type I regularization, is characterized by consecutive intervals of nearly equal duration. It occurs in the BA of "trimodal" and "bimodal" fish, and also in the IBA range of "bimodal" fish. The second, type 2 regularization, is characterized by alternating long and short intervals, corresponding to the second and third mode, which are displayed during the IBA of "trimodal" fish. 5. The transition from IBA to BA and vice versa is brief and distinct. The analyses of long periods of activity reveal that the resting G. petersii displays its entire activity spectrum (BA and IBA) in a sequence of about 200 intervals. 6. When stimulated by the discharges of a conspecific or another mormyrid, the EOD activity of G. petersii becomes more regular. Trains of up to 330 equal intervals (type I regularization) were observed. The preferred frequency range for this emission is individual specific and is situated in the minimum between BA and IBA. Its appearence is also characteristic for mechanically stimulated G. petersii. 7. The results described here give evidence that G. petersii emits at least at 6 preferred ranges of frequency.

Affiliations: 1: Laboratoire de Neurophysiologie Sensorielle Comparée, Centre d'Etudes de Physiologie Nerveuse, C.N.R.S., Gif sur Yvette, France

10.1163/156853974X00507
/content/journals/10.1163/156853974x00507
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/156853974x00507
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156853974x00507
Loading

Article metrics loading...

/content/journals/10.1163/156853974x00507
1974-01-01
2016-12-08

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Behaviour — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation