Sediment Oxygen Uptake in South Swedish Lakes
- 1 January 1978
- Vol. 30 (1) , 7-16
- https://doi.org/10.2307/3543519
Abstract
O2 uptake was measured over sediment cores collected during 1 yr in 5 lakes of different trophic status in southern Sweden. O2 availability and temperature seemed to regulate seasonal variations in sediment O2 uptake. Q10 values for sediment O2 uptake were 2.0-3.0 for the interval 5-10.degree. C and 1.3-1.6 for the interval 15-20.degree. C. The O2 uptake of undisturbed sediment cores sampled in late autumn and of sieved and restratified sediment was studied at temperatures from 5-20% C. At the same temperatures, these samples had an O2 uptake similar to that of samples taken monthly during the year and incubated at the in situ temperature, indicating a strong buffering capacity for sediment respiration. Freshly sedimented organic material seemed to be of minor importance in determining the seasonal changes in sediment O2 uptake. Although annual pelagic primary production was different for the 5 lakes (20-575 g C m-2 yr-1), annual O2 uptake of the sediments showed a much more restricted range (94-235 l O2 m-2 yr-1).This publication has 3 references indexed in Scilit:
- EutrophicationPublished by The National Academies Press ,1969
- Oxygen Consumption of River MudsJournal of Ecology, 1965
- GAS EXCHANGE IN A GEORGIA SALT MARSH1Limnology and Oceanography, 1961