Are yellow eels from Lake Balaton able to cope with high pressure encountered during migration to the Sargasso sea? The case of energy metabolism

Aurelie Vettier, C. Székely, Philippe Sébert

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Eels from Lake Balaton are unique because they do not undergo the silvering process and do not migrate. The question is whether these eels, despite such particularities, retain their ability to cope with migration constraints, usually high pressure. To ascertain this, eels were exposed for 3 days to 10.1 MPa of hydrostatic pressure (HP) and the effects of this on aerobic metabolism were evaluated by measuring oxygen consumption (MO2), Cytochrome Oxydase activity (COX) and energetic nucleotide contents in red and white muscles. The results show that Balaton eels survive HP. However, 3 days under pressure induces an alteration in aerobic metabolism. Moreover, when only muscle fibres are exposed to HP, there is a significant decrease in maximal aerobic capacities (-20%). The results are discussed in terms of the ability of these eels to migrate, bearing in mind that this activity represents a high percentage of maximal aerobic capacity when compared with other populations.

Original languageEnglish
Pages (from-to)329-338
Number of pages10
JournalAnimal Biology
Volume53
Issue number4
DOIs
Publication statusPublished - Dec 2003

Fingerprint

Sargasso Sea
eel
energy metabolism
metabolism
hydrostatic pressure
lakes
lake
energy
muscle
cytochromes
oxygen consumption
muscle fibers
cytochrome
energetics
nucleotides
sea
muscles

Keywords

  • Aerobic metabolism
  • Anguilla anguilla L.
  • Hydrostatic pressure
  • Parasitism
  • Yellow eels

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Are yellow eels from Lake Balaton able to cope with high pressure encountered during migration to the Sargasso sea? The case of energy metabolism. / Vettier, Aurelie; Székely, C.; Sébert, Philippe.

In: Animal Biology, Vol. 53, No. 4, 12.2003, p. 329-338.

Research output: Contribution to journalArticle

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