Staff View: Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean

Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean

A phytoplankton bloom shown to be naturally iron (Fe) induced occurs north of the Crozet Islands (Southern Ocean) every year, providing an ideal opportunity to study dissolved trace metal distributions within an island system located in a high nutrient low chlorophyll (HNLC) region. We present water...

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Main Authors:	Castrillejo, Maxi, Statham, Peter J., Fones, Gary R, Planquette, H�ele`ne, Farah Akmal, Binti Idrus, Roberts, Keiron
Format:	Article
Language:	English
Published:	American Geophysical Union 2013
Subjects:	G Geography (General) GC Oceanography Q Science (General)
Online Access:	http://ir.unimas.my/id/eprint/21436/1/Maxi%20Castrillejo.pdf http://ir.unimas.my/id/eprint/21436/ https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/jgrc.20359
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spelling	my.unimas.ir.214362022-01-24T07:47:13Z http://ir.unimas.my/id/eprint/21436/ Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean Castrillejo, Maxi Statham, Peter J. Fones, Gary R Planquette, H�ele`ne Farah Akmal, Binti Idrus Roberts, Keiron G Geography (General) GC Oceanography Q Science (General) A phytoplankton bloom shown to be naturally iron (Fe) induced occurs north of the Crozet Islands (Southern Ocean) every year, providing an ideal opportunity to study dissolved trace metal distributions within an island system located in a high nutrient low chlorophyll (HNLC) region. We present water column proﬁles of dissolved nickel (Ni), zinc (Zn), cobalt (Co), cadmium (Cd), lead (Pb), aluminium (Al), and manganese (Mn) obtained as part of the NERC CROZEX program during austral summer (2004–2005). Two stations (M3 and M1) were sampled downstream (north) of Crozet in the bloom area and near the islands, along with a control station (M2) in the HNLC zone upstream (south) of the islands. The general range found was for Ni, 4.64–6.31 nM; Zn, 1.59–7.75 nM; Co, 24–49 pM; Cd, 135–673 pM; Pb, 6–22 pM; Al, 0.13–2.15 nM; and Mn, 0.07–0.64 nM. Vertical proﬁles indicate little island inﬂuence to the south with values in the range of other trace metal deprived regions of the Southern Ocean. Signiﬁcant removal of Ni and Cd was observed in the bloom and Zn was moderately correlated with reactive silicate (Si) indicating diatom control over the internal cycling of this metal. Higher concentrations of Zn and Cd were observed near the islands. Pb, Al, and Mn distributions also suggest small but signiﬁcant atmospheric dust supply particularly in the northern region. American Geophysical Union 2013 Article PeerReviewed text en http://ir.unimas.my/id/eprint/21436/1/Maxi%20Castrillejo.pdf Castrillejo, Maxi and Statham, Peter J. and Fones, Gary R and Planquette, H�ele`ne and Farah Akmal, Binti Idrus and Roberts, Keiron (2013) Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean. Journal of Geophysical Research, 118 (10). pp. 5188-5201. ISSN 2156-2202 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/jgrc.20359 DOI:https://doi.org/10.1002/jgrc.20359
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	G Geography (General) GC Oceanography Q Science (General)
spellingShingle	G Geography (General) GC Oceanography Q Science (General) Castrillejo, Maxi Statham, Peter J. Fones, Gary R Planquette, H�ele`ne Farah Akmal, Binti Idrus Roberts, Keiron Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean
description	A phytoplankton bloom shown to be naturally iron (Fe) induced occurs north of the Crozet Islands (Southern Ocean) every year, providing an ideal opportunity to study dissolved trace metal distributions within an island system located in a high nutrient low chlorophyll (HNLC) region. We present water column proﬁles of dissolved nickel (Ni), zinc (Zn), cobalt (Co), cadmium (Cd), lead (Pb), aluminium (Al), and manganese (Mn) obtained as part of the NERC CROZEX program during austral summer (2004–2005). Two stations (M3 and M1) were sampled downstream (north) of Crozet in the bloom area and near the islands, along with a control station (M2) in the HNLC zone upstream (south) of the islands. The general range found was for Ni, 4.64–6.31 nM; Zn, 1.59–7.75 nM; Co, 24–49 pM; Cd, 135–673 pM; Pb, 6–22 pM; Al, 0.13–2.15 nM; and Mn, 0.07–0.64 nM. Vertical proﬁles indicate little island inﬂuence to the south with values in the range of other trace metal deprived regions of the Southern Ocean. Signiﬁcant removal of Ni and Cd was observed in the bloom and Zn was moderately correlated with reactive silicate (Si) indicating diatom control over the internal cycling of this metal. Higher concentrations of Zn and Cd were observed near the islands. Pb, Al, and Mn distributions also suggest small but signiﬁcant atmospheric dust supply particularly in the northern region.
format	Article
author	Castrillejo, Maxi Statham, Peter J. Fones, Gary R Planquette, H�ele`ne Farah Akmal, Binti Idrus Roberts, Keiron
author_facet	Castrillejo, Maxi Statham, Peter J. Fones, Gary R Planquette, H�ele`ne Farah Akmal, Binti Idrus Roberts, Keiron
author_sort	Castrillejo, Maxi
title	Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean
title_short	Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean
title_full	Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean
title_fullStr	Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean
title_full_unstemmed	Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean
title_sort	dissolved trace metals (ni, zn, co, cd, pb, al, and mn) around the crozet islands, southern ocean
publisher	American Geophysical Union
publishDate	2013
url	http://ir.unimas.my/id/eprint/21436/1/Maxi%20Castrillejo.pdf http://ir.unimas.my/id/eprint/21436/ https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/jgrc.20359
_version_	1724078510021017600
score	13.211869

Dissolved trace metals (Ni, Zn, Co, Cd, Pb, Al, and Mn) around the Crozet Islands, Southern Ocean

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