Sediments of Deep Canadian Shield Lakes: Observations of Gross Structure and Biological Significance
- 17 August 1973
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 181 (4100) , 655-657
- https://doi.org/10.1126/science.181.4100.655
Abstract
Sediments of deep Canadian shield lakes have a firm mud-water interface and an intricately structured, oxygenated surface. Surface relief is not uniform, but is broken by small ridges and upright chironomid tubes. The sedimentary material behaves like a weak jelly and becomes flocculent only when violently disturbed. Sculpins were observed to rest on and, when startled, to hide in the oxygenated layers. Sequestering of nutrients in the bottom sediments is enhanced by the structuring of the substrate surface below 10 meters, and may inhibit nutrient recycling at overturn.Keywords
This publication has 3 references indexed in Scilit:
- Lake Opeongo: Effects of Exploitation and Introductions on the Salmonid CommunityJournal of the Fisheries Research Board of Canada, 1972
- The Exchange of Dissolved Substances between Mud and Water in LakesJournal of Ecology, 1942
- The Exchange of Dissolved Substances Between Mud and Water in LakesJournal of Ecology, 1941