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Titolo:
Assessment of cardiac output as a predictor of metabolic rate in rainbow trout
Autore:
Brodeur, JC; Dixon, DG; McKinley, RS;
Indirizzi:
Univ Waterloo, Dept Biol, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 ol, Waterloo, ON N2L 3G1, Canada
Titolo Testata:
JOURNAL OF FISH BIOLOGY
fascicolo: 2, volume: 58, anno: 2001,
pagine: 439 - 452
SICI:
0022-1112(200102)58:2<439:AOCOAA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALMO-GAIRDNERI RICHARDSON; HEART-RATE; ELECTROMYOGRAM TELEMETRY; ONCORHYNCHUS-MYKISS; FISH; BEHAVIOR; RADIOTELEMETRY; RESPONSES; INDICATOR; INCREASE;
Keywords:
cardiac output; metabolic rate; temperature; heart rate; swimming; rainbow trout;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Brodeur, JC Univ St Andrews, Sch Environm & Evolutionary Biol, Gatty Marine Lab, St Andrews KY16 8LB, Fife, Scotland Univ St Andrews St Andrews FifeScotland KY16 8LB e, Scotland
Citazione:
J.C. Brodeur et al., "Assessment of cardiac output as a predictor of metabolic rate in rainbow trout", J FISH BIOL, 58(2), 2001, pp. 439-452

Abstract

When water temperature was increased from 12 to 27 degreesC at a rate of 2degreesC h-l, oxygen consumption of rainbow trout Oncorhynchus mykiss was correlated strongly with both heart rate and blood oxygen extraction but the relationship with cardiac output was variable and weak. On the other hand, when water temperature was decreased from 21 to 12 degrees C at a rate of0.5 degrees C h(-1), oxygen consumption was correlated with both heart rate and cardiac output but nor with blood oxygen extraction. When fish were forced to swim increasingly faster. heart rate, cardiac output and blood oxygen extraction all correlated positively with oxygen consumption. For both cardiac output and heart rate. the slope of the regression line with oxygenconsumption was elevated significantly more when the fish were forced to swim at increasingly higher swimming speeds than when water temperature was increased or decreased. The variation of the regression lines between cardiac output and oxygen consumption indicated that cardiac output presents fewadvantages over heart rate as a predictor of metabolic rate. (C) 2001 The Fisheries Society of thr British Isles.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 20:51:54