Effects of high-pressure acclimatization on silver eel (Anguilla anguilla, L.) slow muscle contraction.
Comp Biochem Physiol A Mol Integr Physiol
; 143(2): 234-8, 2006 Feb.
Article
em En
| MEDLINE
| ID: mdl-16413804
ABSTRACT
As the spawning migration of the eel is supposed to correspond to a long swimming activity at depth, patterns of slow red muscle contraction have been investigated in European silver eel (Anguilla anguilla L.) exposed for 3 weeks to 10.1 MPa hydrostatic pressure. The results show that pressure-acclimated eels (male and female) show a three-fold decrease in maximum isometric stress of twitch and tetanic contractions while time to peak force, time from peak force to 90% relaxation and ratio of twitch tension to tetanic tension remain unchanged. The observed modifications in slow red muscle mechanical properties do not impede the spawning migration of the eel and are possibly partially compensated by an improvement in the efficiency of oxidative phosphorylation. Effects of changes in membrane fluidity are also discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Contração Muscular
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
Comp Biochem Physiol A Mol Integr Physiol
Ano de publicação:
2006
Tipo de documento:
Article