Items where Author is "Lavik, Gaute"

Pratihary, A, Lavik, G, Naqvi, SWA, Shirodkar, G, Sarkar, A, Marchant, H, Ohde, T, Shenoy, D, Kurian, S, Uskaikar, H and Kuypers, MMM (2023) Chemolithoautotrophic denitrification intensifies nitrogen loss in the Eastern Arabian Sea Shelf waters during sulphidic events. Progress in Oceanography, 217. 103075. doi:10.1016/j.pocean.2023.103075

Bourceau, OM, Ferdelman, T, Lavik, G, Mussmann, M, Kuypers, MMM and Marchant, HK (2023) Simultaneous sulfate and nitrate reduction in coastal sediments. ISME Communications, 3(1). doi:10.1038/s43705-023-00222-y

Karthäuser, C, Ahmerkamp, S, Marchant, HK, Bristow, LA, Hauss, H, Iversen, MH, Kiko, R, Maerz, J, Lavik, G and Kuypers, MMM (2021) Small sinking particles control anammox rates in the Peruvian oxygen minimum zone. Nature Communications, 12(1). doi:10.1038/s41467-021-23340-4

Hach, PF, Marchant, HK, Krupke, A, Riedel, T, Meier, DV, Lavik, G, Holtappels, M, Dittmar, T and Kuypers, MMM (2020) Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration. Scientific Reports, 10(1). doi:10.1038/s41598-020-69930-y

Klatt, JM, Gomez-Saez, GV, Meyer, S, Pop Ristova, P, Yilmaz, P, Granitsiotis, MS, Macalady, JL, Lavik, G, Polerecky, L and Bühring, SI (2020) Versatile cyanobacteria control the timing and extent of sulfide production in a Proterozoic analog microbial mat. The ISME Journal. doi:10.1038/s41396-020-0734-z

Braeckman, U, Janssen, F, Lavik, G, Elvert, M, Marchant, H, Buckner, C, Bienhold, C and Wenzhöfer, F (2018) Carbon and nitrogen turnover in the Arctic deep sea: in situ benthic community response to diatom and coccolithophorid phytodetritus. Biogeosciences, 15(21). 6537-6557. doi:10.5194/bg-15-6537-2018

Callbeck, CM, Lavik, G, Ferdelman, TG, Fuchs, B, Gruber-Vodicka, HR, Hach, PF, Littmann, S, Schoffelen, NJ, Kalvelage, T, Thomsen, S, Schunck, H, Löscher, CR, Schmitz, RA and Kuypers, MMM (2018) Oxygen minimum zone cryptic sulfur cycling sustained by offshore transport of key sulfur oxidizing bacteria. Nature Communications, 9(1). doi:10.1038/s41467-018-04041-x

Marchant, HK, Ahmerkamp, S, Lavik, G, Tegetmeyer, HE, Graf, J, Klatt, JM, Holtappels, M, Walpersdorf, E and Kuypers, MMM (2017) Denitrifying community in coastal sediments performs aerobic and anaerobic respiration simultaneously. The ISME Journal, 11(8). 1799-1812. doi:10.1038/ismej.2017.51

Marchant, HK, Holtappels, M, Lavik, G, Ahmerkamp, S, Winter, C and Kuypers, MMM (2016) Coupled nitrification-denitrification leads to extensive N loss in subtidal permeable sediments. Limnology and Oceanography, 61(3). 1033-1048. doi:10.1002/lno.10271

Sokoll, S, Lavik, G, Sommer, S, Goldhammer, T, Kuypers, MMM and Holtappels, M (2016) Extensive nitrogen loss from permeable sediments off North-West Africa. Journal of Geophysical Research: Biogeosciences, 121(4). 1144-1157. doi:10.1002/2015JG003298

Kalvelage, T, Lavik, G, Jensen, MM, Revsbech, NP, Löscher, CR, Schunck, H, Desai, DK, Hauss, H, Kiko, R, Holtappels, M, LaRoche, J, Schmitz, RA, Graco, MI and Kuypers, MMM (2015) Aerobic microbial respiration in oceanic oxygen minimum zones. PLOS ONE, 10(7). e0133526. doi:10.1371/journal.pone.0133526

Holtappels, M, Tiano, L, Kalvelage, T, Lavik, G, Revsbech, NP and Kuypers, MMM (2014) Aquatic respiration rate measurements at low oxygen concentrations. PLoS ONE, 9(2). e89369. doi:10.1371/journal.pone.0089369

Krupke, A, Lavik, G, Halm, H, Fuchs, BM, Amann, RI and Kuypers, MMM (2014) Distribution of a consortium between unicellular algae and the N2 fixing cyanobacterium UCYN-A in the North Atlantic Ocean. Environmental Microbiology, 16(10). 3153-3167. doi:10.1111/1462-2920.12431

Loescher, CR, Großkopf, T, Desai, FD, Gill, D, Schunck, H, Croot, PL, Schlosser, C, Neulinger, SC, Pinnow, N, Lavik, G, Kuypers, MMM, LaRoche, J and Schmitz, RA (2014) Facets of diazotrophy in the oxygen minimum zone waters off Peru. The ISME Journal, 8(11). 2180-2192. doi:10.1038/ismej.2014.71

Canion, A, Overholt, WA, Kostka, JE, Huettel, M, Lavik, G and Kuypers, MMM (2014) Temperature response of denitrification and anaerobic ammonium oxidation rates and microbial community structure in Arctic fjord sediments. Environmental Microbiology, 16(10). 3331-3344. doi:10.1111/1462-2920.12593

Canion, A, Kostka, JE, Gihring, TM, Huettel, M, van Beusekom, JEE, Gao, H, Lavik, G and Kuypers, MMM (2014) Temperature response of denitrification and anammox reveals the adaptation of microbial communities to in situ temperatures in permeable marine sediments that span 50° in latitude. Biogeosciences, 11(2). 309-320. doi:10.5194/bg-11-309-2014

Marchant, HK, Lavik, G, Holtappels, M and Kuypers, MMM (2014) The fate of nitrate in intertidal permeable sediments. PLoS ONE, 9(8). e104517. doi:10.1371/journal.pone.0104517

Song, GD, Liu, SM, Marchant, H, Kuypers, MMM and Lavik, G (2013) Anammox, denitrification and dissimilatory nitrate reduction to ammonium in the East China Sea sediment. Biogeosciences, 10(11). 6851-6864. doi:10.5194/bg-10-6851-2013

Winkel, M, de Beer, D, Lavik, G, Peplies, J and Mußmann, M (2013) Close association of active nitrifiers withBeggiatoamats covering deep-sea hydrothermal sediments. Environmental Microbiology, 16(6). 1612-1626. doi:10.1111/1462-2920.12316

Gutknecht, E, Dadou, I, Le Vu, B, Cambon, G, Sudre, J, Garçon, V, Machu, E, Rixen, T, Kock, A, Flohr, A, Paulmier, A and Lavik, G (2013) Coupled physical/biogeochemical modeling including O2-dependent processes in the Eastern Boundary Upwelling Systems: application in the Benguela. Biogeosciences, 10(6). 3559-3591. doi:10.5194/bg-10-3559-2013

Schunck, H, Lavik, G, Desai, DK, Großkopf, T, Kalvelage, T, Löscher, CR, Paulmier, A, Contreras, S, Siegel, H, Holtappels, M, Rosenstiel, P, Schilhabel, MB, Graco, M, Schmitz, RA, Kuypers, MMM and LaRoche, J (2013) Giant hydrogen sulfide plume in the oxygen minimum zone off Peru supports chemolithoautotrophy. PLoS ONE, 8(8). e68661. doi:10.1371/journal.pone.0068661

Niemann, H, Linke, P, Knittel, K, MacPherson, E, Boetius, A, Brückmann, W, Lavik, G, Wallmann, K, Schacht, U, Omoregie, E, Hilton, D, Brown, K and Rehder, G (2013) Methane-carbon flow into the benthic food web at cold seeps - a case study from the Costa Rica subduction zone. PLoS ONE, 8(10). e74894. doi:10.1371/journal.pone.0074894

Brunner, B, Contreras, S, Lehmann, MF, Matantseva, O, Rollog, M, Kalvelage, T, Klockgether, G, Lavik, G, Jetten, MSM, Kartal, B and Kuypers, MMM (2013) Nitrogen isotope effects induced by anammox bacteria. Proceedings of the National Academy of Sciences, 110(47). 18994-18999. doi:10.1073/pnas.1310488110

Gutknecht, E, Dadou, I, Marchesiello, P, Cambon, G, Le Vu, B, Sudre, J, Garçon, V, Machu, E, Rixen, T, Kock, A, Flohr, A, Paulmier, A and Lavik, G (2013) Nitrogen transfers off Walvis Bay: a 3-D coupled physical/biogeochemical modeling approach in the Namibian upwelling system. Biogeosciences, 10(6). 4117-4135. doi:10.5194/bg-10-4117-2013

Gao, H, Matyka, M, Liu, B, Khalili, A, Kostka, JE, Collins, G, Jansen, S, Holtappels, M, Jensen, MM, Badewien, TH, Beck, M, Grunwald, M, de Beer, D, Lavik, G and Kuypers, MMM (2012) Intensive and extensive nitrogen loss from intertidal permeable sediments of the Wadden Sea. Limnology and Oceanography, 57(1). 185-198. doi:10.4319/lo.2012.57.1.0185

Füssel, J, Lavik, G, Jensen, MM, Holtappels, M, Günter, M and Kuypers, MMM (2012) Nitrite oxidation in the Namibian oxygen minimum zone. Isme Journal, 6(6). 1200-12090. doi:10.1038/ismej.2011.178

Ploug, H, Adam, B, Musat, N, Kalvelage, T, Lavik, G, Wolf-Gladrow, D and Kuypers, MMM (2011) Carbon, nitrogen and O(2) fluxes associated with the cyanobacterium Nodularia spumigena in the Baltic Sea. Isme Journal, 5(9). 1549-1558. doi:10.1038/ismej.2011.20

Kamp, A, de Beer, D, Nitsch, JL, Lavik, G and Stief, P (2011) Diatoms respire nitrate to survive dark and anoxic conditions. Proceedings of the National Academy of Sciences of the United States of America, 108(14). 5649-5654. doi:10.1073/pnas.1015744108

Lam, P, Jensen, MM, Kock, A, Lettmann, K, Plancherel, Y, Lavik, G, Bange, HW and Kuypers, MMM (2011) Origin and fate of the secondary nitrite maximum in the Arabian Sea. Biogeosciences, 8(6). 1565-1577. doi:10.5194/bg-8-1565-2011

Kalvelage, T, Jensen, MM, Contreras, S, Revsbech, NP, Lam, P, Günter, M, LaRoche, J, Lavik, G and Kuypers, MMM (2011) Oxygen sensitivity of Anammox and coupled N-cycle processes in oxygen minimum zones. PLoS ONE, 6(12). doi:10.1371/journal.pone.0029299

Enge, AJ, Nomaki, H, Ogawa, NO, Witte, U, Moeseneder, MM, Lavik, G, Ohkouchi, N, Kitazato, H, Kucera, M and Heinz, P (2011) Response of the benthic foraminiferal community to a simulated short-term phytodetritus pulse in the abyssal North Pacific. Marine Ecology Progress Series, 438. 129-142. doi:10.3354/meps09298

Ploug, H, Musat, N, Adam, B, Moraru, CL, Lavik, G, Vagner, T, Bergman, B and Kuypers, MMM (2010) Carbon and nitrogen fluxes associated with the cyanobacterium Aphanizomenon sp. in the Baltic Sea. Isme Journal, 4(9). 1215-1223. doi:10.1038/ismej.2010.53

Stief, P, Behrendt, A, Lavik, G and de Beer, D (2010) Combined Gel Probe and Isotope Labeling Technique for Measuring Dissimilatory Nitrate Reduction to Ammonium in Sediments at Millimeter-Level Resolution. Applied and Environmental Microbiology, 76(18). 6239-6247. doi:10.1128/AEM.01104-10

Contreras, S, Lange, CB, Pantoja, S, Lavik, G, Rincón-Martínez, D and Kuypers, MMM (2010) A rainy northern Atacama Desert during the last interglacial. Geophysical Research Letters, 37. L23612. doi:10.1029/2010GL045728

Stuut, JB, Zabel, M, Ratmeyer, V, Helmke, P, Schefuß, E, Lavik, G and Schneider, RR (2005) Provenance of present-day eolian dust collected off NW Africa. Journal of Geophysical Research-Atmospheres, 110. D04202. doi:10.1029/2004JD005161

Holmes, ME, Lavik, G, Fischer, G and Wefer, G (2004) Nitrogen isotopes in sinking particles and surface sediments in the Central and Southern Atlantic. In: Wefer, G, Mulitza, S and Ratmeyer, V (eds.) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, 143-165. doi:10.1007/978-3-642-18917-3_8

Romero, OE, Boeckel, B, Donner, B, Lavik, G, Fischer, G and Wefer, G (2002) Seasonal productivity dynamics in the pelagic central Benguela System inferred from the flux of carbonate and silicate organisms. Journal of Marine Systems, 37(4). 259-278. doi:10.1016/S0924-7963(02)00189-6

Holmes, ME, Lavik, G, Fischer, G, Segl, M, Ruhland, G and Wefer, G (2002) Seasonal variability of d15N in sinking particles in the Benguela upwelling region. Deep Sea Research Part I: Oceanographic Research Papers, 49(2). 377-394. doi:10.1016/S0967-0637(01)00055-3

Lavik, G (2001) Nitrogen isotopes of sinking matter and sediments in the South Atlantic. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 169. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000102935

Hebbeln, D, Arntz, WE, Böning, P, Bohlmann, H, Contardo, X, Dezileau, L, Ferdelman, TG, Figueroa, S, Fleming, J, Gallardo, VA, Gerdes, D, Giglio, S, Gonzales, P, Gonzáles, R, Gutièrrez, D, Hayn, C, Kallmeyer, J, Klockgether, G, Lambers, K, Lamy, F, Langer, J, Lavik, G, Löbner, H, Marchant, M, Meyer-Schack, B, Mohtadi, M, Montiel, A, Niggemann, J, Quiroga, E, Romero, OE, Rondanelli, M, Scheurle, C, Schewe, F, Schneider, RR, Schubert, CJ, Sellanes, J, Serrano, W, Stregel, S, Teixidó, N, Toffin, L, Treude, T, Villa, R, Villagrán, C, Walpersdorf, E, Wintersteller, P and Wulf, J (2001) PUCK: Report and preliminary results of R/V Sonne Cruise SO156, Valparaiso (Chile) - Talcahuano (Chile). March 29 - May 14, 2001. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 182. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000103106