L773:0967 0645 OR L773:1879 0100
Search: L773:0967 0645 OR L773:1879 0100 > The distribution an...
- 24 of 42
- Previous record
- Next record
- To hitlist
- Croot, P. L. (author)
The distribution and specification of iron along 6 degrees E in the Southern Ocean
- Article/chapterEnglish2004
Publisher, publication year, extent ...
- Elsevier BV,2004
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/56449
- https://gup.ub.gu.se/publication/56449URI
- https://doi.org/10.1016/j.dsr2.2003.10.012DOI
Supplementary language notes
- Language:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- The distribution and speciation of iron was determined along a transect in the eastern Atlantic sector (6degreesE) of the Southern Ocean during a collaborative Scandinavian/South African Antarctic cruise conducted in late austral summer (December 1997/January 1998). Elevated concentrations of dissolved iron (>0.4 nM) were found at 60degreesS in the vicinity of the Spring Ice Edge (SIE) in tandem with a phytoplankton bloom, chiefly dominated by Phaeocystis sp. This bloom had developed rapidly after the loss of the seasonal sea ice cover. The iron that fuelled this bloom was mostly likely derived from sea ice melt. In the Winter Ice Edge (WIE), around 55degreesS, dissolved iron concentrations were low (<0.2 nM) and corresponded to lower biological productivity, biomass. In the Antarctic Polar Front, at approximately 50degreesS, a vertical profile of dissolved iron showed low concentrations (<0.2 nM); however, a surface survey showed higher concentrations (1-3 nM), and considerable patchiness in this dynamic frontal region. The chemical speciation of iron was dominated by organic complexation throughout the study region. Organic iron-complexing ligands ([L]) ranged from 0.9 to 3.0 nM Fe equivalents, with complex stability log K'(FeL) = 21.4-23.5. Estimated concentrations of inorganic iron (Fe') ranged from 0.03 to 0.79 pM, with the highest values found in the Phaeocystis bloom in the SIE. A vertical profile of iron-complexing ligands in the WIE showed a maximum consistent with a biological source for ligand production and near surface minimum possibly consistent with loss via photodecomposition. This work further confirms the role iron that has in the Southern Ocean in limiting primary productivity. (C) 2004 Elsevier Ltd. All rights reserved.
Subject headings and genre
- NATURVETENSKAP Kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences hsv//eng
- EQUATORIAL PACIFIC-OCEAN
- CATHODIC STRIPPING VOLTAMMETRY
- ANTARCTIC
- CIRCUMPOLAR CURRENT
- NATURAL ORGANIC-LIGANDS
- PHYTOPLANKTON BLOOM
- OXIDATION-KINETICS
- CHEMILUMINESCENCE DETECTION
- KERGUELEN-ISLANDS
- FLOW-INJECTION
- DISSOLVED IRON
Added entries (persons, corporate bodies, meetings, titles ...)
- Andersson, K. (author)
- Öztürk, M. (author)
- Turner, David R.,1951Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry(Swepub:gu)xturda (author)
- Göteborgs universitetInstitutionen för kemi (creator_code:org_t)
Related titles
- In:Deep-Sea Research Part Ii-Topical Studies in Oceanography: Elsevier BV51:22-24, s. 2857-28790967-0645
Internet link
Find in a library
- Deep-Sea Research Part Ii-Topical Studies in Oceanography (Search for host publication in LIBRIS)
To the university's database
- 24 of 42
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Croot, P. L.
- Andersson, K.
- Öztürk, M.
- Turner, David R. ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- Articles in the publication
- Deep-Sea Researc ...
- By the university
- University of Gothenburg
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
