Zobrazeno 1 - 10
of 148
pro vyhledávání: '"J. Thomalla"'
Autor:
E. K. Mai, U. Bertsch, R. Fenk, D. Tichy, B. Besemer, J. Dürig, R. Schroers, I. von Metzler, M. Hänel, C. Mann, A. M. Asemissen, B. Heilmeier, E. Nievergall, S. Huhn, K. Kriegsmann, N. Weinhold, S. Luntz, T. A. W. Holderrried, K. Trautmann-Grill, D. Gezer, M. Klaiber-Hakimi, M. Müller, C. Khandanpour, W. Knauf, C. Scheid, M. Munder, T. Geer, H. Riesenberg, J. Thomalla, M. Hoffmann, M. S. Raab, H. J. Salwender, K. C. Weisel, H. Goldschmidt
Publikováno v:
HemaSphere, Vol 6, Pp 820-821 (2022)
Externí odkaz:
https://doaj.org/article/9aac9ed478d6480097aa69a48a10c93f
Publikováno v:
Earth System Science Data, Vol 15, Pp 4829-4848 (2023)
Net primary production of the oceans contributes approximately half of the total global net primary production, and long-term observational records are required to assess any climate-driven changes. The Ocean Colour Climate Change Initiative (OC-CCI)
Externí odkaz:
https://doaj.org/article/8f897c63bdb8465799ba4c67337ce537
Autor:
A. Singh, S. Fietz, S. J. Thomalla, N. Sanchez, M. V. Ardelan, S. Moreau, H. M. Kauko, A. Fransson, M. Chierici, S. Samanta, T. N. Mtshali, A. N. Roychoudhury, T. J. Ryan-Keogh
Publikováno v:
Biogeosciences, Vol 20, Pp 3073-3091 (2023)
The high nutrient–low chlorophyll condition of the Southern Ocean is generally thought to be caused by the low bioavailability of micronutrients, particularly iron, which plays an integral role in phytoplankton photosynthesis. Nevertheless, the Sou
Externí odkaz:
https://doaj.org/article/35f5ef9338d84dc691bc729c17e484fb
Autor:
Sebastien Moreau, Tore Hattermann, Laura de Steur, Hanna M. Kauko, Heidi Ahonen, Murat Ardelan, Philipp Assmy, Melissa Chierici, Sebastien Descamps, Tilman Dinter, Tone Falkenhaug, Agneta Fransson, Eirik Grønningsæter, Elvar H. Hallfredsson, Oliver Huhn, Anais Lebrun, Andrew Lowther, Nico Lübcker, Pedro Monteiro, Ilka Peeken, Alakendra Roychoudhury, Magdalena Różańska, Thomas Ryan-Keogh, Nicolas Sanchez, Asmita Singh, Jan Henrik Simonsen, Nadine Steiger, Sandy J. Thomalla, Andre van Tonder, Jozef M. Wiktor, Harald Steen
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
This study reports a dense, late summer phytoplankton bloom in the Southern Ocean that accumulated unusually high levels of organic matter and supported feeding hot spots for birds and whales. The authors show that this recurring open ocean bloom is
Externí odkaz:
https://doaj.org/article/c4c9e6ae595d4b25bde3046024c97c18
Autor:
Tebatso M. Moloto, Sandy J. Thomalla, Marie E. Smith, Bettina Martin, Deon C. Louw, Rolf Koppelmann
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Marine phytoplankton in the northern Benguela upwelling system (nBUS) serve as a food and energy source fuelling marine food webs at higher trophic levels and thereby support a lucrative fisheries industry that sustain local economies in Namibia. Mic
Externí odkaz:
https://doaj.org/article/cf26a2b1229c418aa67ff8a5286050ec
Publikováno v:
Biogeosciences, Vol 19, Pp 3425-3444 (2022)
Across the Southern Ocean in winter, nitrification is the dominant mixed-layer nitrogen cycle process, with some of the nitrate produced therefrom persisting to fuel productivity during the subsequent growing season. Because this nitrate constitutes
Externí odkaz:
https://doaj.org/article/5cba833591344ed29bfcf1914e9f1a14
Autor:
Choaro D. Dithugoe, Oliver K. I. Bezuidt, Emma L. Cavan, William P. Froneman, Sandy J. Thomalla, Thulani P. Makhalanyane
Publikováno v:
mSphere, Vol 8, Iss 3 (2023)
ABSTRACT The biological carbon pump (BCP) in the Southern Ocean is driven by phytoplankton productivity and is a significant organic matter sink. However, the role of particle-attached (PA) and free-living (FL) prokaryotes (bacteria and archaea) and
Externí odkaz:
https://doaj.org/article/3ee221cc6e6543eba8716701bb657867
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Active chlorophyll-a fluorescence was measured during five summer research cruises (2008 – 2016), spanning the Atlantic sector of the Southern Ocean. This unique data set provides information for assessing zonal, inter-annual and intra-seasonal var
Externí odkaz:
https://doaj.org/article/5e51e0e0b53840c28e356da363b684b2
Publikováno v:
Science. 379:834-840
Southern Ocean primary productivity is principally controlled by adjustments in light and iron limitation, but the spatial and temporal determinants of iron availability, accessibility, and demand are poorly constrained, which hinders accurate long-t
Autor:
Thomas James Ryan‐Keogh, Emma Lewis Bone, Sandy J. Thomalla, Lisl Lain, Marie E. Smith, Stewart Bernard, Marcello Vichi
Publikováno v:
Limnology and Oceanography. 68:569-582