The Oxygen Balance of Lake Mývatn, Iceland
- 1 January 1979
- Vol. 32 (1/2) , 139-150
- https://doi.org/10.2307/3544224
Abstract
The primary production of phytoplankton, benthic diatoms and colonies of Cladophora aegagrophila (L.) Rabenh. were studied in Lake Myvatn, a shallow lake of northern Iceland, during the summers of 1973 and 1974. The gross primary production of the phytoplankton was about 2.8 g O2 m-2 d-1 [day] while that of the benthic diatoms was about 0.8 g O2 m-2 d-1. The colonies of Cladophora, which grew on the bottom of the central parts of the lake were locally very abundant and reached densities of 1.8 .times. 105 m-2 in 1973 (approximately 50 g m-2 ash-free dry weight). They were well adapted to the low illumination intensities of the deeper parts of the lake. The daily O2 balance of the sandy bottom marginal areas of the lake was negative with an O2 uptake rate of approximately 1.3 g O2 m-2 d-1. Normally, the daily O2 balance of the southern basin of the lake was positive. However, storms greatly increase the O2 uptake of this shallow lake by resuspending sedimented particles into the surface waters. sedimented particles into the surface waters.This publication has 3 references indexed in Scilit:
- Phytoplankton Production in Shallow Eutrophic Lake Mývatn, IcelandOikos, 1979
- Phytoplankton Dynamics in an Arctic LakeJournal of the Fisheries Research Board of Canada, 1967
- Oxygen Uptake as Related to Body Size in OrganismsThe Quarterly Review of Biology, 1953