Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Maria C. Nielsdóttir"'
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
Publikováno v:
Marine Chemistry
Marine Chemistry, Elsevier, 2018, 201, pp.77-89. ⟨10.1016/j.marchem.2018.01.003⟩
Marine Chemistry, Elsevier, 2018, 201, pp.77-89. ⟨10.1016/j.marchem.2018.01.003⟩
Oxygen minimum zones (OMZs), where the concentrations of oxygen are at analytical detection limits, but sulfate reduction is not occurring, are termed suboxic and typically nitrate serves as the terminal electron acceptor for heterotrophic respiratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c829fcd40564b80ac292c609fbd96ea9
https://hal.archives-ouvertes.fr/hal-02510973/document
https://hal.archives-ouvertes.fr/hal-02510973/document
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
Autor:
Rebecca E. Korb, Daria J. Hinz, Michael J. Whitehouse, C. Mark Moore, Richard Sanders, Maria C. Nielsdóttir, Thomas S. Bibby, Eric P. Achterberg
Publikováno v:
Marine Chemistry. :62-72
The Southern Ocean is the world's largest high nutrient low chlorophyll (HNLC) region. However, satellite images highlight several areas associated with island chains and shallow topographic features which display high phytoplankton biomass. Here we
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
Autor:
Martha Gledhill, Khairul Nizam Mohamed, Maria C. Nielsdóttir, Eric P. Achterberg, Sebastian Steigenberger
Publikováno v:
Deep Sea Research Part I: Oceanographic Research Papers. 58:1049-1059
On voyages in the Iceland Basin in 2007 and 2009, we observed low (ca. 0.1nM) total dissolved iron concentrations dFe in surface waters ( 99%). The ratio of LT/dFe was used to analyse trends in Fe speciation. Enhanced and variable LT/dFe ratios rangi
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
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 54:2174-2190
Marine productivity is often higher downstream than upstream of islands. This so-called island mass effect was tested and quantified with respect to biological carbon uptake and air–sea exchange of carbon dioxide (CO2) at the Crozet Plateau between
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
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
http://www.documentation.ird.fr/hor/fdi:010061959
Autor:
Maria C. Nielsdóttir, Eric P. Achterberg, Micha J. A. Rijkenberg, David J. Honey, Martha Gledhill
Publikováno v:
Global Biogeochemical Cycles, 27 (4). pp. 1072-1082.
Concentrations of heme b, the iron-containing component of b-type hemoproteins, ranged from? 500). High chl a:heme b ratios resulted from relative decreases in heme b, suggesting proteins such as cytochrome b6f, the core complex of photosystem II, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f21f4c395bdbccb0a6a01e3be876632
https://eprints.soton.ac.uk/361693/
https://eprints.soton.ac.uk/361693/