The effects of hydrostatic pressure on the swimming physiology of eels
Recruitment of the European eel has been in decline since the 1980s. So far, the population has not recovered and is considered „critically endangered“. The species has a complex life-cycle which still poses a variety of unresolved questions, including the effects of hydrostatic pressure on the eel’s metabolism. Detailed experimental studies could improve our knowledge on possible physiological changes during the long-distance spawning migration to the Sargasso Sea. With our novel hyperbaric swim tunnel respirometer system, the conditions during the early marine phase of the spawning migration can be simulated and the energy expenditure of the eels during swimming can be measured under controlled conditions.