Abstract
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 154:79-90 (1997) - doi:10.3354/meps154079 Environmental versus functional hypoxia/anoxia in sole Solea solea: the lactate paradox revisited Dalla Via J, van den Thillart G, Cattani O, Cortesi P The effects of hypoxia (12 and 6% air saturation), anoxia and forced exercise on intermediary metabolism were compared and the first 4 h of recovery after exhaustive exercise examined in common sole Solea solea. Intermediates of energy metabolism and lactate production were analyzed in white muscle, liver and blood. Rates of ATP production by anaerobic metabolism for the 4 different conditions were 52, 150, 1777, and 6834 µmol 100g-1 h-1, respectively. Total anaerobic ATP yield was 625, 1799, 3074, and 3132 µmol ATP 100g-1. Under hypoxia the energy consumption of the fish appeared to be depressed (i.e. below standard metabolic rate), while under anoxia the rate was at routine metabolic rate, and under forced exercise was twice the active metabolic rate. The muscle/blood lactate ratio after forced exercise was comparable to those found previously for other flatfish species; however, hypoxia exposure resulted in a completely inverse situation with blood lactate levels up to 20 mM, whereas anoxia resulted in an intermediate situation. The results challenge the present concept of lactate 'releasers' and 'non-releasers' describing the transfer of lactate from muscle tissue into the blood. It is concluded that the distinction between lacate 'releasers' and 'non-releasers' can no longer be applied on a species basis but must be related to type and intensity of the induced stress situation. Intermediary metabolism · Metabolic depression · Forced exercise · Recovery · Lactate 'releaser' and 'non-releaser' · Flatfish Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 154. Publication date: July 31, 1997 Print ISSN:0171-8630; Online ISSN:1616-1599 Copyright © 1997 Inter-Research.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
