Articles | Volume 15, issue 16
https://doi.org/10.5194/bg-15-5093-2018
https://doi.org/10.5194/bg-15-5093-2018
Research article
 | 
27 Aug 2018
Research article |  | 27 Aug 2018

Modulation of the vertical particle transfer efficiency in the oxygen minimum zone off Peru

Marine Bretagnon, Aurélien Paulmier, Véronique Garçon, Boris Dewitte, Séréna Illig, Nathalie Leblond, Laurent Coppola, Fernando Campos, Federico Velazco, Christos Panagiotopoulos, Andreas Oschlies, J. Martin Hernandez-Ayon, Helmut Maske, Oscar Vergara, Ivonne Montes, Philippe Martinez, Edgardo Carrasco, Jacques Grelet, Olivier Desprez-De-Gesincourt, Christophe Maes, and Lionel Scouarnec

Related authors

Complex interplay of forcings drives Indian vegetation and summer monsoon variability during MIS 11
Dulce Oliveira, Stéphanie Desprat, Qiuzhen Yin, Coralie Zorzi, Zhipeng Wu, Krishnamurthy Anupama, Srinivasan Prasad, Montserrat Alonso-García, and Philippe Martinez
EGUsphere, https://doi.org/10.5194/egusphere-2024-3341,https://doi.org/10.5194/egusphere-2024-3341, 2024
Short summary
Riverine nutrient impact on global ocean nitrogen cycle feedbacks and marine primary production in an Earth system model
Miriam Tivig, David P. Keller, and Andreas Oschlies
Biogeosciences, 21, 4469–4493, https://doi.org/10.5194/bg-21-4469-2024,https://doi.org/10.5194/bg-21-4469-2024, 2024
Short summary
Global impact of benthic denitrification on marine N2 fixation and primary production simulated by a variable-stoichiometry Earth system model
Na Li, Christopher J. Somes, Angela Landolfi, Chia-Te Chien, Markus Pahlow, and Andreas Oschlies
Biogeosciences, 21, 4361–4380, https://doi.org/10.5194/bg-21-4361-2024,https://doi.org/10.5194/bg-21-4361-2024, 2024
Short summary
Pathways for avoiding ocean biogeochemical damage: Mitigation limits, mitigation options, and projections
Timothée Bourgeois, Olivier Torres, Friederike Fröb, Aurich Jeltsch-Thömmes, Giang T. Tran, Jörg Schwinger, Thomas L. Frölicher, Jean Negrel, David Keller, Andreas Oschlies, Laurent Bopp, and Fortunat Joos
EGUsphere, https://doi.org/10.5194/egusphere-2024-2768,https://doi.org/10.5194/egusphere-2024-2768, 2024
Short summary
Dual-tracer constraints on the Inverse-Gaussian Transit-time distribution improve the estimation of watermass ages and their temporal trends in the tropical thermocline
Haichao Guo, Wolfgang Koeve, Andreas Oschlies, Yan-Chun He, Tronje Peer Kemena, Lennart Gerke, and Iris Kriest
EGUsphere, https://doi.org/10.5194/egusphere-2024-2552,https://doi.org/10.5194/egusphere-2024-2552, 2024
Short summary

Related subject area

Biogeochemistry: Coastal Ocean
Ocean alkalinity enhancement (OAE) does not cause cellular stress in a phytoplankton community of the subtropical Atlantic Ocean
Librada Ramírez, Leonardo J. Pozzo-Pirotta, Aja Trebec, Víctor Manzanares-Vázquez, José L. Díez, Javier Arístegui, Ulf Riebesell, Stephen D. Archer, and María Segovia
Biogeosciences, 22, 1865–1886, https://doi.org/10.5194/bg-22-1865-2025,https://doi.org/10.5194/bg-22-1865-2025, 2025
Short summary
Reviews and syntheses: On increasing hypoxia in eastern boundary upwelling systems – zooplankton under metabolic stress
Leissing Frederick, Mauricio A. Urbina, and Ruben Escribano
Biogeosciences, 22, 1839–1852, https://doi.org/10.5194/bg-22-1839-2025,https://doi.org/10.5194/bg-22-1839-2025, 2025
Short summary
Technical note: Testing a new approach for the determination of N2 fixation rates by coupling a membrane equilibrator to a mass spectrometer for long-term observations
Sören Iwe, Oliver Schmale, and Bernd Schneider
Biogeosciences, 22, 1767–1779, https://doi.org/10.5194/bg-22-1767-2025,https://doi.org/10.5194/bg-22-1767-2025, 2025
Short summary
Long-term variations in pH in coastal waters along the Korean Peninsula
Yong-Woo Lee, Mi-Ok Park, Seong-Gil Kim, Tae-Hoon Kim, Yong Hwa Oh, Sang Heon Lee, and DongJoo Joung
Biogeosciences, 22, 675–690, https://doi.org/10.5194/bg-22-675-2025,https://doi.org/10.5194/bg-22-675-2025, 2025
Short summary
The effect of carbonate mineral additions on biogeochemical conditions in surface sediments and benthic–pelagic exchange fluxes
Kadir Biçe, Tristen Myers Stewart, George G. Waldbusser, and Christof Meile
Biogeosciences, 22, 641–657, https://doi.org/10.5194/bg-22-641-2025,https://doi.org/10.5194/bg-22-641-2025, 2025
Short summary

Cited articles

Azam, F., Steward, G. F., Smith, D. C., and Ducklow, H. W.: Significance of bacteria in carbon fluxes in the Arabian Sea, Earth Planet. Sci., 103, 341–351, 1994. 
Baker, E. T., Milburn, H. B., and Tennant, D. A.: Field assessment of sediment trap efficiency under varying flow conditions, J. Mar. Res., 46, 573–592, 1988. 
Bardhan, P., Karapurkar, S. G., Shenoy, D. M., Kurian, S., Sarkar, A., Maya, M. V., Naik, H., Varik, S., and Naqvi, S. W. A.: Carbon and nitrogen isotopic composition of suspended particulate organic matter in Zuari Estuary, west coast of India, J. Marine Syst., 141, 90–97, 2015. 
Berelson, W. M.: The flux of particulate organic carbon into the ocean interior: A comparison of four U.S. JGOFS regional studies, Oceanography, 14, 59–67, 2001. 
Böning, P., Brumsack, H. J., Böttcher, M. E., Schnetger, B., Kriete, C., Kallmeyer, J., and Borchers, S. L.: Geochemistry of Peruvian near-surface sediments, Geochim. Cosmochim. Ac., 68, 4429–4451 2004. 
Download
Short summary
In oxygen minimum zone, the fate of the organic matter is a key question as the low oxygen condition would preserve the OM and thus enhance the biological carbon pump while the high microbial activity would foster the remineralisation and the greenhouse gases emission. To investigate this paradigm, sediment traps were deployed off Peru. We pointed out the influence of the oxygenation as well as the organic matter quantity and quality on the carbon transfer efficiency in the oxygen minimum zone.
Share
Altmetrics
Final-revised paper
Preprint