Latest Holocene dinoflagellate cyst records from the west coast of Sweden and their impact on the interpretation of environmental change
Published:January 01, 2013
R. Harland, K. Nordberg, A. Robijn, 2013. "Latest Holocene dinoflagellate cyst records from the west coast of Sweden and their impact on the interpretation of environmental change", Biological and Geological Perspectives of Dinoflagellates, J. M. Lewis, F. Marret, L. R. Bradley
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The fjords along the west coast of Sweden have attracted attention for a number of unfortunate reasons, including the development of enhanced primary production and the presence of oxygen deﬁciency in bottom waters with its consequential benthic mortality. These difﬁculties have impacted local ﬁsheries, mariculture and leisure activities along the coast. In the early 1990s a research programme, using the fjord sediments as an archive, was initiated to understand the various environmental processes at play. Included were studies on the foraminifera to access bottom water environments, and dinoﬂagellate cyst analysis for the interpretation of surface water conditions. In addition the sedimentary history within several of the fjords was constructed using 210Pb dating and a constant rate of supply model together with heavy metal analysis. Several fjords were analysed for their dinoﬂagellate cyst record including Koljöfjord, Gullmarsfjord and Havstensfjord. This contribution adds to the published information with the inclusion of Sannäsfjord and Dynekilen. All the dinoﬂagellate cyst records are consistent with modern cyst ﬂoras of the area, and include Lingulodinium polyedrum, Protoceratium reticulatum, Spiniferites bentorii and Pentapharsodinium dalei. It is however apparent that the temporal cyst record from Gullmarsfjord differs from the other fjords and is reacting differently to environmental change. Ultra-high-resolution dinoﬂagellate cyst analysis has a particular impact on the interpretation of environmental change within the marine realm.
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Biological and Geological Perspectives of Dinoflagellates
This volume provides an overview of current research on fossil and modern dinoflagellates, as well as highlighting research areas for future collaboration, following the DINO9 International Conference in Liverpool. The volume is organized into four themes, with a review paper for each theme written by the key-note speaker. Each theme also includes a future research foci note following discussion during the conference. The contributions are organized into the following sections: environmental change, ecology/palaeoecology, life cycles and diversity, and stratigraphy and evolution. Also included are notes from two workshops: culture experiments and dinocysts as palaeoceanographic tracers. This volume will be of interest to both the biological and Micropalaeontological communities.