Levels of essential and potentially toxic trace metals in Antarctic macro algae

Farías, Silvia; Arisnabarreta, Sebastián Pérez; Vodopívez, Cristian; Smichowski, Patricia

doi:10.1016/s0584-8547(02)00183-0

Cited by 80 publications

(40 citation statements)

References 11 publications

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“…in dry or cold weather and in extremely polluted areas. Algae present in the investigated lakes, instead, are unicellular cyanobacteria living in less severe conditions; they assimilate nutrients and elements directly from water (Farias et al, 2002). As already observed for waters, means in both algae and mosses are almost always higher than median values, indicating the presence of samples with concentrations higher than the majority of the other specimens.…”

Section: Algae and Moss Samplessupporting

confidence: 56%

Element variability in lacustrine systems of Terra Nova Bay (Antarctica) and concentration evolution in surface waters

et al. 2017

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Section: Algae and Moss Samplessupporting

confidence: 56%

Element variability in lacustrine systems of Terra Nova Bay (Antarctica) and concentration evolution in surface waters

et al. 2017

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“….`~B B~ ³ ³ê ê j jL L References: 1: this study; 2: Netten et al (2000); 3: Phaneuf et al (1999);4: Caliceti et al (2002); 5: Moreno et al (1997);6: Farias et al (2002);7: Bohn (1979);8: Giusti (2001 (Bohn 1979;Markham et al 1980;Bryan 1983;Forsberg et al 1988;Moreno et al 1997;Farias et al 2002;Khristoforova and Kozhenkova 2002). §" j §öBº Fucus spp.& aeR«b ÏB : ® (Bohn 1979;Forsberg et al 1988) ÎöB º Desmarestia spp., Adenocystis spp.~ 7.³ ³»ö & & ® (Moreno et al 1997;Farias et al 2002). Bryan(1983)f Fucus vesiculosus& >Ï &Ë ; >ö Ò~º As, Cd, Cu, Pb, Zn~ ³ê¢ >'~º ' aeR«¢ : ®.…”

Section: òò 5 O»mentioning

confidence: 88%

Metal Concentrations in some Brown Seaweeds from Kongsfjorden on Spitsbergen, Svalbard Islands

Ahn¹,

Choi²,

Ji³

et al. 2004

Ocean and Polar Research

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: Concentrations of Al, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn were determined in four arctic brown algae (Laminaria saccharina, L. digitata, Alaria esculenta, Desmarestia aculeata) in an attempt to examine for their metal accumulation capacity and also to assess their contamination levels. Macroalgae were collected from shallow subtidal waters (<20 m) of Kongsfjorden (Kings Bay) on Spitsbergen during the period of the late July to early August 2003. Metal concentrations highly varied between sampling sites, species and tissue parts. Input of melt-water laden with terrigenous sediment particles seemed to have a large influence on baseline accumulations of some metals (Al, Fe, Mn, Pb etc.) in the macroalgae, causing a significant spatial variation. There were also significant concentration differences between the young and old tissue parts in L. saccharina, L. digitata and A. esculenta. While Al, Fe, Mn, Pb were higher in the perennial parts below meristematic region (excluding holdfast), Cd and As concentrations were significantly higher in the young blades above the meristematic region. Zn and Cr, on the other hand, showed little differences between the tissue parts. The highest metal concentrations were found in D. aculeata, which seems to be due to its filamentous fine branches leading to high surface/volume ratios. The lowest concentrations were found in the two Laminaria spp., the blades of which are thicker than D. aculeata and A. esculenta. No distinct signs of contamination were detected in the brown algal species analyzed. Added to this, the results of the present studies suggest the potential utility of L. saccharina, L. digitata and A. esculenta as biomonitors for metal pollution monitoring in this area.

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“…Pucci et al [5] studied the role of a fairy shrimp, namely, Chirocephalus diaphanus in the early recognition of environmental pollution by trace elements. Arsenic was one of the elements considered and it was measured by ICP-MS. Levels of 14 essential and potentially toxic trace elements in 11 species of Antarctic macro algae have been determined by inductively coupled plasma-optical emission spectrometry (ICP-OES) [12]. The information obtained in this investigation supported the assumption on the selectivity of macro algae to accumulate inorganic contaminants from Antarctic sea water.…”

Section: Introductionmentioning

confidence: 55%

“…According to our previous studies on algae material [12], the MW procedure used was chosen as optimum for achieving complete dissolution of the samples.…”

Section: Optimization Of the Etaas Conditionsmentioning

confidence: 99%

Total arsenic content of nine species of Antarctic macro algae as determined by electrothermal atomic absorption spectrometry

Smichowski¹,

Farías²,

Valiente³

et al. 2004

Analytical and Bioanalytical Chemistry

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Total arsenic in nine species Antarctic macro algae has been measured, by electrothermal atomic absorption spectrometry using a Pd/Mg(NO3)2 matrix modifier, to determine their capacity to accumulate the element. Macro algae were collected in February during the 2000 austral summer season at Jubany Station (Argentinean scientific station) around Potter Cove, King George Island. An optimized two-step microwave (MW) program was used to digest the samples. Dried samples were treated with HNO3, H2O2, and HF, left overnight, then subjected to the first MW cycle. After cooling HNO3 and HClO4 were added and samples were subjected to the second MW cycle of digestion treatment. The effect of power and time on As recovery was examined. The analytical features of the method were: detection limit, 0.24 microg g(-1) (dry mass); precision (RSD), 4.2-5.7%; recovery 91-105%. A wide range of As-retention capacity (41.0-447 microg g(-1) dry mass) was observed among the different species. The highest levels of As were found in Phaeurus antarcticus (447 microg g(-1) dry mass). This organism satisfies several prerequisites to be considered for consideration as a biomonitor in future studies.

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Levels of essential and potentially toxic trace metals in Antarctic macro algae

Cited by 80 publications

References 11 publications

Element variability in lacustrine systems of Terra Nova Bay (Antarctica) and concentration evolution in surface waters

Element variability in lacustrine systems of Terra Nova Bay (Antarctica) and concentration evolution in surface waters

Metal Concentrations in some Brown Seaweeds from Kongsfjorden on Spitsbergen, Svalbard Islands

Total arsenic content of nine species of Antarctic macro algae as determined by electrothermal atomic absorption spectrometry

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