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- Title
Spatial variability of recent sedimentation in Lake Ohrid (Albania/Macedonia) - a complex interplay of natural and anthropogenic factors and their possible impact on biodiversity patterns.
- Authors
Vogel, H.; Wessels, M.; Albrecht, C.; Stich, H.-B.; Wagner, B.
- Abstract
Lake Ohrid is likely of Pliocene age and thus commonly referred to as the oldest existing lake in Europe. In this study spatial variability of recent sediment composition is assessed using >50 basin wide distributed surface sediment samples. Analysis of biogeochemical bulk parameters, selected metals, pigment concentrations as well as grain size distributions revealed a significant spatial heterogeneity in surface sediment composition. It implies that sedimentation in Lake Ohrid is controlled by an interaction of multiple natural and anthropogenic factors and processes. Major factors controlling surface sediment composition are related to differences in geological catchment characteristics, anthropogenic land use, and a counter-clockwise rotating surface water current. In some instances processes controlling sediment composition also seem to impact distribution patterns of biodiversity, which suggests a common interaction of processes responsible for both patterns.
- Subjects
LAKE Ohrid (Macedonia &; Albania); EUROPE; SEDIMENTATION &; deposition; PLIOCENE Epoch; BIOGEOCHEMICAL cycles; ANTHROPOGENIC soils
- Publication
Biogeosciences Discussions, 2010, Vol 7, Issue 3, p3911
- ISSN
1810-6277
- Publication type
Article
- DOI
10.5194/bgd-7-3911-2010