Environmental forcing of nitrogen fixation in the eastern tropical and sub-tropical North Atlantic Ocean.

Autor: Micha J A Rijkenberg, Rebecca J Langlois, Matthew M Mills, Matthew D Patey, Polly G Hill, Maria C Nielsdóttir, Tanya J Compton, Julie Laroche, Eric P Achterberg

Publikováno v: PLoS ONE, Vol 6, Iss 12, p e28989 (2011)

During the winter of 2006 we measured nifH gene abundances, dinitrogen (N(2)) fixation rates and carbon fixation rates in the eastern tropical and sub-tropical North Atlantic Ocean. The dominant diazotrophic phylotypes were filamentous cyanobacteria,

Externí odkaz: https://doaj.org/article/f6bb7d039cb24241b25c7df914209733

Spatial and temporal development of phytoplankton iron stress in relation to bloom dynamics in the high-latitude North Atlantic Ocean

Autor: Thomas S. Bibby, Eric P. Achterberg, C. Mark Moore, Thomas J. Ryan-Keogh, Mike Lucas, Sebastian Steigenberger, Mark C. Stinchcombe, Anna I. Macey, Maria C. Nielsdóttir

Publikováno v: Limnology and Oceanography, 58 (2). pp. 533-545.

The high-latitude North Atlantic (HLNA) is characterized by a marked seasonal phytoplankton bloom, which removes the majority of surface macronutrients. However, incomplete nitrate depletion is frequently observed during summer in the region, potenti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d4053da5fbb449938127771013eb5ff
https://doi.org/10.4319/lo.2013.58.2.0533

Responses of microplankton community structure to iron addition in the Scotia Sea

Autor: Rebecca E. Korb, Eric P. Achterberg, Daria J. Hinz, Michael J. Whitehouse, Alex J. Poulton, Thomas S. Bibby, C. M. Moore, Maria C. Nielsdóttir

Publikováno v: Deep Sea Research Part II: Topical Studies in Oceanography. :36-46

The Southern Ocean is largely a High Nutrient Low Chlorophyll (HNLC) region where macronutrient concentrations are high and phytoplankton productivity is low. However, there are productive 'hot spots' that sustain large phytoplankton blooms. These ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa8ebd6eb4d90c625740bbdac30148e4
https://doi.org/10.1016/j.dsr2.2011.08.006

Changes in iron speciation following a Saharan dust event in the tropical North Atlantic Ocean

Autor: Micha J.A. Rijkenberg, Maria C. Nielsdóttir, Tim Jickells, Polly G. Hill, Eric P. Achterberg, Claire F. Powell, Matthew D. Patey, Manuel Dall'Osto, Roy M. Harrison, Alex R. Baker

Publikováno v: Marine Chemistry. 110:56-67

Concentrations of dissolved iron (DFe) and Fe-binding ligands were determined in the tropical Northeast Atlantic Ocean (12–30°N, 21–29°W) as part of the UK-SOLAS (Surface Ocean Lower Atmosphere Study) cruise Poseidon 332 (P332) in January–Feb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26e8da0372718ce7810673ff3da12825
https://doi.org/10.1016/j.marchem.2008.02.006

Sedimentary and atmospheric sources of iron around South Georgia, Southern Ocean : a modelling perspective

Autor: Olivier Aumont, Ines Borrione, Reiner Schlitzer, Maria C. Nielsdóttir

Publikováno v: Biogeosciences
Biogeosciences, European Geosciences Union, 2014, 11 (7), pp.1981-2001. ⟨10.5194/bg-11-1981-2014⟩
EPIC3Biogeosciences, COPERNICUS GESELLSCHAFT MBH, 11, pp. 1981-2001, ISSN: 1726-4170
Biogeosciences, Vol 11, Iss 7, Pp 1981-2001 (2014)
EPIC3Biogeosciences, COPERNICUS GESELLSCHAFT MBH, 11(7), pp. 1981-2001, ISSN: 1726-4170

In high-nutrient low-chlorophyll waters of the western Atlantic sector of the Southern Ocean, an intense phytoplankton bloom is observed annually north of South Georgia, most likely due to an enhanced supply of the limiting micronutrient iron. Shallo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5337e67ee4d8185767e2fa0275663359
http://www.documentation.ird.fr/hor/fdi:010061959