Distribution of Transparent Exopolymer Particles (TEP) in the World Ocean.

Dreshchinskii, Alexander (2011) Distribution of Transparent Exopolymer Particles (TEP) in the World Ocean. (Master thesis), St. Petersburg State University ; University of Hamburg, St. Petersburg, Russia ; Hamburg, 42 pp.

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The study focuses on transparent exopolymer particles, called TEP, the most investigated type of marine gels which, are suggested, play a significant role in the biogeochemical cycling of organic carbon in the World Ocean. The goal of this study is to check up the extent of coupling between exopolymers and phytoplankton related to the scale of the World Ocean. To reach it, all the literature data on TEP were collected and transformed to uniform appearance. The calculations were made with the help of the existing empirical relationships that have got the development in the present study. Based on the designed database, the map of the TEP distribution in the World Ocean was created. The data analysis conducted in this study has revealed low and very similar concentrations of TEP in different oligotrophic parts of the ocean which coincide with the concentrations pattern of exopolymers in certain coastal regions during winter periods. The data have shown low correlation 0.33-0.31 between TEP and chlorophyll a that allows suggesting more complex temporal and spatial relationships of gel particles with the surrounding media.
The results of this study demonstrate that further investigations on TEP abundance are necessary, especially in the open ocean, to obtain detailed temporal information that, generally, is not available nowadays.

Document Type: Thesis (Master thesis)
Keywords: Carbon cycle; TEP abundance; Transparent Exopolymer Particles; Ocean research
Projects: POMOR
Date Deposited: 10 Mar 2015 09:09
Last Modified: 10 Mar 2015 09:09
URI: https://oceanrep.geomar.de/id/eprint/27964

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