Premium
VERTICAL DISTRIBUTION OF THE ACTIVITY OF THE RESPIRATORY ELECTRON TRANSPORT SYSTEM IN MARINE PLANKTON 1
Author(s) -
Packard T. T.,
Healy M. L.,
Richards F. A.
Publication year - 1971
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1971.16.1.0060
Subject(s) - electron transport chain , oxygen , plankton , environmental science , oceanography , liter , atmospheric sciences , chemistry , biology , geology , botany , organic chemistry , endocrinology
The activity of the respiratory electron transport system in plankton is measured by tetrazolium reduction and used to estimate oxygen utilization rates in the waters of the eastern tropical Pacific Ocean. Vertical profiles of the electron transport system from the ocean surface to 5,000 m suggest a rapid decrease in the oxygen utilization rate from 300 µ l O 2 liter −1 yr −1 (0.8 µ l O 2 liter −1 day −1 ) in the cuphotic zone to 3 µ l O 2 lite −1 yr −1 at 500 m and a more gradual decrease to 0.5 µ l O 2 liter −1 yr −1 at 5,000 m.