Items where Author is "Witt, Matthias"

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Number of items: 23.

Article

Article
Underwood, G. J. , Michel, C. , Meisterhans, G. , Niemi, A. , Belzile, C. , Witt, M. , Dumbrell, A. J. and Koch, B. P. (2019)
Organic matter from Arctic sea-ice loss alters bacterial community structure and function ,
Nature Climate Change, 9 (2), pp. 170-176 .
doi:https://www.doi.org/10.1038/s41558-018-0391-7 , hdl:10013/epic.9f1909ba-f74b-4308-9816-08db1e9e6706
[thumbnail of Underwood_et_al_2019.pdf]
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Article
Guillemette, R. , Kaneko, R. , Blanton, J. , Tan, J. , Witt, M. , Hamilton, S. , Allen, E. E. , Medina, M. , Hamasaki, K. , Koch, B. P. and Azam, F. (2018)
Bacterioplankton drawdown of coral mass-spawned organic matter ,
The ISME Journal, 12 (9), pp. 2238-2251 .
doi:https://www.doi.org/10.1038/s41396-018-0197-7 , hdl:10013/epic.384752eb-c604-4b50-a4bf-a6e0d4f61353
[thumbnail of Guillemette2018.pdf]
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Article
Tillmann, U. , Jaén, D. , Fernández, L. , Gottschling, M. , Witt, M. , Blanco, J. and Krock, B. (2017)
Amphidoma languida (Amphidomatacea, Dinophyceae) with a novel azaspiracid toxin profile identified as the cause of molluscan contamination at the Atlantic coast of southern Spain ,
Harmful Algae, 62 , pp. 113-126 .
doi:https://www.doi.org/10.1016/j.hal.2016.12.001 , hdl:10013/epic.49684
[thumbnail of 2017_Tillman_HA_Amphidoma.pdf]
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Article
LaRowe, D. E. , Koch, B. P. , Robador, A. , Witt, M. , Ksionzek, K. and Amend, J. P. (2017)
Identification of organic compounds in ocean basement fluids ,
Organic Geochemistry, 113 , pp. 124-127 .
doi:https://www.doi.org/10.1016/j.orggeochem.2017.07.017 , hdl:10013/epic.51611

Article
Krock, B. , Busch, J. , Tillmann, U. , García-Camacho, F. , Sánchez-Mirón, A. , Gallardo-Rodríguez, J. , López-Rosales, L. , Andree, K. , Fernández-Tejedor, M. , Witt, M. , Cembella, A. and Place, A. (2017)
LC-MS/MS Detection of Karlotoxins Reveals New Variants in Strains of the Marine Dinoflagellate Karlodinium veneficum from the Ebro Delta (NW Mediterranean) ,
Marine Drugs, 15 (12), p. 391 .
doi:https://www.doi.org/10.3390/md15120391 , hdl:10013/epic.13b3934b-7551-4fd1-8c15-7ba25a036944
[thumbnail of Krock_2017.pdf]
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Article
Lin, Y. S. , Koch, B. P. , Feseker, T. , Ziervogel, K. , Goldhammer, T. , Schmidt, F. , Witt, M. , Kellermann, M. Y. , Zabel, M. , Teske, A. and Hinrichs, K. U. (2017)
Near-surface Heating of Young Rift Sediment Causes Mass Production and Discharge of Reactive Dissolved Organic Matter ,
Scientific Reports, 7 (1), 44864- .
doi:https://www.doi.org/10.1038/srep44864 , hdl:10013/epic.50671

Article
Schmidt, F. , Koch, B. P. , Goldhammer, T. , Elvert, M. , Witt, M. , Lin, Y. S. , Wendt, J. , Zabel, M. , Heuer, V. B. and Hinrichs, K. U. (2017)
Unraveling signatures of biogeochemical processes and the depositional setting in the molecular composition of pore water DOM across different marine environments ,
Geochimica et Cosmochimica Acta, 207 , pp. 57-80 .
doi:https://www.doi.org/10.1016/j.gca.2017.03.005 , hdl:10013/epic.50723

Article
Tillmann, U. , Borel, C. M. , Barrera, F. , Lara, R. , Krock, B. , Almandoz, G. O. , Witt, M. and Trefault, N. (2016)
Azadinium poporum from the Argentine Continental Shelf, Southwestern Atlantic, produces azaspiracid-2 and azaspiracid-2 phosphate ,
Harmful Algae, 51 , pp. 40-55 .
doi:https://www.doi.org/10.1016/j.hal.2015.11.001 , hdl:10013/epic.46494
[thumbnail of 2016_Tillmann_HA_AZA.pdf]
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Article
Oni, O. E. , Schmidt, F. , Miyatake, T. , Kasten, S. , Witt, M. , Hinrichs, K. U. and Friedrich, M. W. (2015)
Microbial Communities and Organic Matter Composition in Surface and Subsurface Sediments of the Helgoland Mud Area, North Sea ,
Frontiers in Microbiology, 6 (NOV), 1290- .
doi:https://www.doi.org/10.3389/fmicb.2015.01290 , hdl:10013/epic.46428
[thumbnail of Oni_et_al_2015_organic_matter.pdf]
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Article
Schmidt, F. , Koch, B. P. , Witt, M. and Hinrichs, K. U. (2014)
Extending the analytical window for water-soluble organic matter in sediments by aqueous Soxhlet extraction ,
Geochimica et Cosmochimica Acta, 141 , pp. 83-96 .
doi:https://www.doi.org/10.1016/j.gca.2014.06.009 , hdl:10013/epic.43853
[thumbnail of Schmidt_et_al_2014.pdf]
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Article
Krock, B. , Tillmann, U. , Witt, M. and Gu, H. (2014)
Azaspiracid variability of Azadinium poporum (Dinophyceae) from the China Sea ,
Harmful Algae, 36 , pp. 22-28 .
doi:https://www.doi.org/10.1016/j.hal.2014.04.012 , hdl:10013/epic.43512
[thumbnail of Krock_2014.pdf]
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Article
Lechtenfeld, O. J. , Koch, B. P. , Gašparović, B. , Frka, S. , Witt, M. and Kattner, G. (2013)
The influence of salinity on the molecular and optical properties of surface microlayers in a karstic estuary ,
Marine Chemistry, 150 , pp. 25-38 .
doi:https://www.doi.org/10.1016/j.marchem.2013.01.006 , hdl:10013/epic.41194

Article
Krock, B. , Tillmann, U. , Voß, D. , Koch, B. P. , Salas, R. , Witt, M. , Potvin, É. and Jeong, H. J. (2012)
New azaspiracids in Amphidomataceae (Dinophyceae) ,
Toxicon, 60 (5), pp. 830-839 .
doi:https://www.doi.org/10.1016/j.toxicon.2012.05.007 , hdl:10013/epic.39789

Article
Schmidt, F. , Koch, B. P. , Elvert, M. , Schmidt, G. , Witt, M. and Hinrichs, K. U. (2011)
Diagenetic Transformation of Dissolved Organic Nitrogen Compounds under Contrasting Sedimentary Redox Conditions in the Black Sea ,
Environmental Science & Technology, 45 (12), pp. 5223-5229 .
doi:https://www.doi.org/10.1021/es2003414 , hdl:10013/epic.37636

Article
Flerus, R. , Koch, B. P. , Schmitt-Kopplin, P. , Witt, M. and Kattner, G. (2011)
Molecular level investigation of reactions between dissolved organic matter and extraction solvents using FT-ICR MS ,
Marine Chemistry, 124 (1-4), pp. 100-107 .
doi:https://www.doi.org/10.1016/j.marchem.2010.12.006 , hdl:10013/epic.37284

Article
Witt, M. , Fuchser, J. and Koch, B. P. (2009)
Fragmentation Studies of Fulvic Acids Using Collision Induced Dissociation Fourier Transform Ion Cyclotron Resonance Mass Spectrometry ,
Analytical Chemistry, 81 (7), pp. 2688-2694 .
doi:https://www.doi.org/10.1021/ac802624s , hdl:10013/epic.32452

Article
Schmidt, F. , Elvert, M. , Koch, B. P. , Witt, M. and Hinrichs, K. U. (2009)
Molecular characterization of dissolved organic matter in pore water of continental shelf sediments ,
Geochimica et Cosmochimica Acta, 73 (11), pp. 3337-3358 .
doi:https://www.doi.org/10.1016/j.gca.2009.03.008 , hdl:10013/epic.32659

Article
Koch, B. P. , Ludwichowski, K. U. , Kattner, G. , Dittmar, T. and Witt, M. (2008)
Advanced characterization of marine dissolved organic matter by combining reversed-phase liquid chromatography and FT-ICR-MS ,
Marine Chemistry, 111 (3-4), pp. 233-241 .
doi:https://www.doi.org/10.1016/j.marchem.2008.05.008 , hdl:10013/epic.31136

Article
Khanna, R. , Witt, M. , Khalid Anwer, M. , Agarwal, S. P. and Koch, B. P. (2008)
Spectroscopic characterization of fulvic acids extracted from the rock exudate Shilajit ,
Organic Geochemistry, 39 (12), pp. 1719-1724 .
doi:https://www.doi.org/10.1016/j.orggeochem.2008.08.009 , hdl:10013/epic.31630

Article
Koch, B. P. , Dittmar, T. , Witt, M. and Kattner, G. (2007)
Fundamentals of Molecular Formula Assignment to Ultrahigh Resolution Mass Data of Natural Organic Matter ,
Analytical Chemistry, 79 (4), pp. 1758-1763 .
doi:https://www.doi.org/10.1021/ac061949s , hdl:10013/epic.25849

Article
Koch, B. P. , Witt, M. , Engbrodt, R. , Dittmar, T. and Kattner, G. (2005)
Molecular formulae of marine and terrigenous dissolved organic matter detected by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry ,
Geochimica et Cosmochimica Acta, 69 (13), pp. 3299-3308 .
doi:https://www.doi.org/10.1016/j.gca.2005.02.027 , hdl:10013/epic.21218

Conference

Conference -Talk
Lechtenfeld, O. , Koch, B. ORCID: https://orcid.org/0000-0002-8453-731X, Geibert, W. ORCID: https://orcid.org/0000-0001-8646-2334, Witt, M. , Ludwichowski, K. U. and Kattner, G. (2012)
Inorganics in organics: quantification of organic phosphorus and sulfur and trace element speciation in natural organic matter using HPLC-ICP-MS ,
2012 Ocean Science Meeting, Salt Lake City, Utah, USA, 20 February 2012 - 24 February 2012 .
hdl:10013/epic.38966

Conference -Poster
Koch, B. ORCID: https://orcid.org/0000-0002-8453-731X, Geibert, W. ORCID: https://orcid.org/0000-0001-8646-2334, Lechtenfeld, O. , Witt, M. and Fahl, K. ORCID: https://orcid.org/0000-0001-9317-4656 (2012)
NATURAL RADIATION MODIFIES THE STRUCTURE OF ORGANIC MATTER IN AQUEOUS SYSTEMS ,
2012 Ocean Science Meeting, Salt Lake City, Utah, USA, 20 February 2012 - 24 February 2012 .
hdl:10013/epic.39004

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