Effect of Intensity and Mode of Artificial Upwelling on Particle Flux and Carbon Export

Autor: Moritz Baumann, Jan Taucher, Allanah J. Paul, Malte Heinemann, Mari Vanharanta, Lennart T. Bach, Kristian Spilling, Joaquin Ortiz, Javier Arístegui, Nauzet Hernández-Hernández, Isabel Baños, Ulf Riebesell

Publikováno v: Frontiers in Marine Science, Vol 8 (2021)

Reduction of anthropogenic CO2 emissions alone will not sufficiently restrict global warming and enable the 1.5°C goal of the Paris agreement to be met. To effectively counteract climate change, measures to actively remove carbon dioxide from the at

Externí odkaz: https://doaj.org/article/db44904cc8344f7f8e89338d82755d2b

Impact of increasing carbon dioxide on dinitrogen and carbon fixation rates under oligotrophic conditions and simulated upwelling

Autor: Arvind Singh, Lennart T. Bach, Carolin R. Löscher, Narendra Ojha, Allanah J. Paul, Ulf Riebesell

Publikováno v: Singh, A, Bach, L T, Löscher, C R, Paul, A J, Ojha, N & Riebesell, U 2021, ' Impact of increasing carbon dioxide on dinitrogen and carbon fixation rates under oligotrophic conditions and simulated upwelling ', Limnology and Oceanography, vol. 66, no. 7, pp. 2855-2867 . https://doi.org/10.1002/lno.11795

Dinitrogen (N2) fixation is a major source of bioavailable nitrogen to oligotrophic ocean communities. Yet, we have limited understanding how ongoing climate change could alter N2 fixation. Most of our understanding is based on short-term laboratory

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bef229b5b65c4a28e19c30f819cd429
https://oceanrep.geomar.de/id/eprint/52716/

Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification

Autor: Markus Schartau, Lennart T. Bach, Paul Stange, Jan Taucher, Allanah J. Paul, Tim Boxhammer, Ulf Riebesell

Ocean acidification (OA) will affect marine biotas from the organism to the ecosystem level. Yet, the consequences for the biological carbon pump and thereby the oceanic sink for atmospheric CO2 are still unclear. Here we show that OA considerably al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c2e777a0ed9f3abf7e33a2fd527324b

Universal response pattern of phytoplankton growth rates to increasing CO

Autor: Allanah J, Paul, Lennart T, Bach

Publikováno v: The New phytologistReferences. 228(6)

Phytoplankton growth rate is a key variable controlling species succession and ecosystem structure throughout the surface ocean. Carbonate chemistry conditions are known to influence phytoplankton growth rates but there is no conceptual framework all

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::424940efd845fe17970e52825a62bff5
https://pubmed.ncbi.nlm.nih.gov/32654139

Niche construction by non-diazotrophs for N2fixers in the eastern tropical North Atlantic Ocean

Autor: Allanah J. Paul, Rainer Kiko, Pieter Vandromme, Arvind Singh, Lennart T. Bach, Tim Fischer, Helena Hauss, Paul Stange, Ulf Riebesell

Publikováno v: Geophysical Research Letters. 44:6904-6913

Diazotrophic dinitrogen (N2) fixation contributes ~76% to "new" nitrogen inputs to the sunlit open ocean, but environmental factors determining N2 fixation rates are not well constrained. Excess phosphate (phosphate-nitrate/16 > 0) and iron availabil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1fd5b50a3b33f559ba3e416118e2fe3
https://doi.org/10.1002/2017gl074218