Marine Eutrophication: A Proposed Data Analysis Procedure For Assessing Spatial Trends |
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| Authors: | Dimitra Kitsiou Michael Karydis |
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| Institution: | (1) Aquatic Ecosystems Laboratory, Department of Environmental Studies, University of the Aegean, 17 Karadoni Street, Mytilene, Greece;(2) Present address: CEFREM (Centre de Formation et de Recherche sur l'Environnement Marin), Université de Perpignan, 52, Avenue de Villeneuve, Perpignan, France;(3) Aquatic Ecosystems Laboratory, Department of Environmental Studies, University of the Aegean, 17 Karadoni Street, Mytilene, Greece |
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| Abstract: | A methodology for the discrimination of the different trophic levels at a spatial scale in the marine environment is proposedusing spatial analysis methods and non-parametric statistics. Phytoplankton cell number, being a representative parameter to express trophic trends in the marine ecosystem is selected forthe methodology development; Saronicos Gulf, Greece is used for the case study. The proposed stepwise methodology includes interpolation for assessing the spatial distribution of phytoplankton cell number, division of the Gulf into a number of quadrates, development of a scale characterising trophic levels and finally characterisation of the trophic state ofeach quadrate using non-parametric statistics. The advantages of this methodology and the potential applications in coastal management studies are also discussed. |
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| Keywords: | interpolation marine eutrophication non-parametricstatistics phytoplankton cell number Saronicos Gulf spatial analysis thematic map |
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