The fate of terrestrial organic matter in two Scottish sea lochs |
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| Authors: | PS Loh AD Reeves SM Harvey J Overnell AEJ Miller |
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| Institution: | 1. UHI Millennium Institute, Scottish Association for Marine Science, Dunstaffnage Marine Laboratory, Oban, PA37 1QA, Scotland, UK;2. Environmental Systems Research Group, Geography Department, University of Dundee, Dundee, DD1 4HN, Scotland, UK;3. Scottish Association for Marine Science, Dunstaffnage Marine Laboratory, Oban, PA37 1QA, Scotland, UK |
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| Abstract: | Sea lochs are zones of rapid organic matter (OM) turnover. Most of this OM is of allochthonous origin, being introduced into the lochs via freshwater input. In this study the behaviour of terrestrially derived OM was elucidated using a combination of parameters which indicate OM diagenesis in the near surface sediments from two Scottish sea lochs, Loch Creran and Loch Etive. Alkaline CuO oxidation was used to determine lignin phenols which serve as biomarkers for terrestrial OM in sediments. Stable carbon isotope, total carbon and nitrogen and total OM (including the labile and refractory fractions) compositions were also determined. |
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| Keywords: | lignin terrestrial organic matter Scottish sea lochs diagenesis |
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