Cardiac conduction times in Sparus auratus at different heart rates. Influence of body weight

A. Aissaoui, J. Altimiras, L. Tort

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

At different heart rates, the conduction time through the atrium of gilthead sea bream Sparus auratus (P-R interval) was constant in each fish but differed from one fish to another. This difference was not related to the body size of the animal, suggesting the lack of preferential conduction pathways in the atrium. A clear relation between R-T interval and fish weight was observed, suggesting a similar conduction speed of the excitatory wave and the presence of specialized conductive tissue in the ventricle. Moreover, the P-R and R-T intervals did not participate in the determination of the heart rate, and all changes in the heart rate were related to changes in the T-P interval.
Original languageEnglish
Pages (from-to)1154-1164
JournalJournal of Fish Biology
Volume52
DOIs
Publication statusPublished - 1 Jun 1998

Keywords

  • Electrocardiogram
  • Heart rate
  • P-R interval
  • R-T interval
  • Sparus auratus

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