Sex differences in the heart rate variability spectrum of free-swimming Atlantic salmon (Salmo salar L) during the spawning season

J Altimiras, Alastair D.F. Johnstone, M C Lucas, Imants George Priede

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Heart rates were telemetered from male and female adult salmon (Salmo salar L.) when they were ascending a river to spawn. In this specific period, males had higher heart rates than females, reflecting the higher activity levels and higher metabolic rates of the males. Analysis of the beat-to-beat intervals (using the heart rate variability spectrum) revealed a single spectral peak that differed between sexes, with males displaying a spectral peak at lower frequencies than females even when the heart rate was the same. The dual spectral peak observed in higher vertebrates and in some other studies in fish was not found. It is suggested that the single spectral peak is related to the activity of the blood pressure control loop. In this framework, the gender spectral differences could be explained by a differential vascular reactivity related to different sex steroid concentrations in plasma. Spectral analysis of beat-to-beat intervals is extensively used to understand short-term control of heart rate in mammals; this study indicates that it can also be applied to free-living fish to understand neural cardiovascular regulation.

Original languageEnglish
Pages (from-to)770-784
Number of pages15
JournalPhysiological and Biochemical Zoology
Volume69
Issue number4
Publication statusPublished - 1996

Keywords

  • RAINBOW-TROUT
  • BLOOD-PRESSURE
  • NATURAL-ENVIRONMENT
  • GADUS-MORHUA
  • GILL ARCH
  • FISH
  • TELEMETRY
  • RESPONSIVENESS
  • CATECHOLAMINES
  • ARTERIOLES

Cite this

Sex differences in the heart rate variability spectrum of free-swimming Atlantic salmon (Salmo salar L) during the spawning season. / Altimiras, J ; Johnstone, Alastair D.F.; Lucas, M C ; Priede, Imants George.

In: Physiological and Biochemical Zoology, Vol. 69, No. 4, 1996, p. 770-784.

Research output: Contribution to journalArticle

Altimiras, J ; Johnstone, Alastair D.F. ; Lucas, M C ; Priede, Imants George. / Sex differences in the heart rate variability spectrum of free-swimming Atlantic salmon (Salmo salar L) during the spawning season. In: Physiological and Biochemical Zoology. 1996 ; Vol. 69, No. 4. pp. 770-784.
@article{e48b1caa1def4dbab41239cc86f4f7d2,
title = "Sex differences in the heart rate variability spectrum of free-swimming Atlantic salmon (Salmo salar L) during the spawning season",
abstract = "Heart rates were telemetered from male and female adult salmon (Salmo salar L.) when they were ascending a river to spawn. In this specific period, males had higher heart rates than females, reflecting the higher activity levels and higher metabolic rates of the males. Analysis of the beat-to-beat intervals (using the heart rate variability spectrum) revealed a single spectral peak that differed between sexes, with males displaying a spectral peak at lower frequencies than females even when the heart rate was the same. The dual spectral peak observed in higher vertebrates and in some other studies in fish was not found. It is suggested that the single spectral peak is related to the activity of the blood pressure control loop. In this framework, the gender spectral differences could be explained by a differential vascular reactivity related to different sex steroid concentrations in plasma. Spectral analysis of beat-to-beat intervals is extensively used to understand short-term control of heart rate in mammals; this study indicates that it can also be applied to free-living fish to understand neural cardiovascular regulation.",
keywords = "RAINBOW-TROUT, BLOOD-PRESSURE, NATURAL-ENVIRONMENT, GADUS-MORHUA, GILL ARCH, FISH, TELEMETRY, RESPONSIVENESS, CATECHOLAMINES, ARTERIOLES",
author = "J Altimiras and Johnstone, {Alastair D.F.} and Lucas, {M C} and Priede, {Imants George}",
year = "1996",
language = "English",
volume = "69",
pages = "770--784",
journal = "Physiological and Biochemical Zoology",
issn = "1522-2152",
publisher = "UNIV CHICAGO PRESS",
number = "4",

}

TY - JOUR

T1 - Sex differences in the heart rate variability spectrum of free-swimming Atlantic salmon (Salmo salar L) during the spawning season

AU - Altimiras, J

AU - Johnstone, Alastair D.F.

AU - Lucas, M C

AU - Priede, Imants George

PY - 1996

Y1 - 1996

N2 - Heart rates were telemetered from male and female adult salmon (Salmo salar L.) when they were ascending a river to spawn. In this specific period, males had higher heart rates than females, reflecting the higher activity levels and higher metabolic rates of the males. Analysis of the beat-to-beat intervals (using the heart rate variability spectrum) revealed a single spectral peak that differed between sexes, with males displaying a spectral peak at lower frequencies than females even when the heart rate was the same. The dual spectral peak observed in higher vertebrates and in some other studies in fish was not found. It is suggested that the single spectral peak is related to the activity of the blood pressure control loop. In this framework, the gender spectral differences could be explained by a differential vascular reactivity related to different sex steroid concentrations in plasma. Spectral analysis of beat-to-beat intervals is extensively used to understand short-term control of heart rate in mammals; this study indicates that it can also be applied to free-living fish to understand neural cardiovascular regulation.

AB - Heart rates were telemetered from male and female adult salmon (Salmo salar L.) when they were ascending a river to spawn. In this specific period, males had higher heart rates than females, reflecting the higher activity levels and higher metabolic rates of the males. Analysis of the beat-to-beat intervals (using the heart rate variability spectrum) revealed a single spectral peak that differed between sexes, with males displaying a spectral peak at lower frequencies than females even when the heart rate was the same. The dual spectral peak observed in higher vertebrates and in some other studies in fish was not found. It is suggested that the single spectral peak is related to the activity of the blood pressure control loop. In this framework, the gender spectral differences could be explained by a differential vascular reactivity related to different sex steroid concentrations in plasma. Spectral analysis of beat-to-beat intervals is extensively used to understand short-term control of heart rate in mammals; this study indicates that it can also be applied to free-living fish to understand neural cardiovascular regulation.

KW - RAINBOW-TROUT

KW - BLOOD-PRESSURE

KW - NATURAL-ENVIRONMENT

KW - GADUS-MORHUA

KW - GILL ARCH

KW - FISH

KW - TELEMETRY

KW - RESPONSIVENESS

KW - CATECHOLAMINES

KW - ARTERIOLES

M3 - Article

VL - 69

SP - 770

EP - 784

JO - Physiological and Biochemical Zoology

JF - Physiological and Biochemical Zoology

SN - 1522-2152

IS - 4

ER -