The utilization of the Antarctic environmental specimen bank (BCAA) in monitoring Cd and Hg in an Antarctic coastal area in Terra Nova Bay (Ross Sea––Northern Victoria Land)

Riva, Simona Dalla; Abelmoschi, Maria Luisa; Magi, Emanuele; Soggia, Francesco

doi:10.1016/j.chemosphere.2003.12.026

Cited by 55 publications

(27 citation statements)

References 18 publications

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“…n-Alkanes (dissolved+particulate) values trend is also well correlated with ɛ 0 values. The trend of ɛ 0 values, which is the result of the variation of surface tension in relation to the surface concentration, is also in agreement with the movement of particulate matter from the surface to the bottom of water column (typical process for the period here considered) [61], and the mixing of surface water column by rough sea condition. For SSW samples the range of ɛ 0 values goes from 0.7 to 18.0 mN m − 1 , and a trend was not present, either for n-alkanes, and or for FA.…”

Section: Gas Bubble Extractionsupporting

confidence: 57%

n-Alkanes, PAHs and surfactants in the sea surface microlayer and sea water samples of the Gerlache Inlet sea (Antarctica)

Stortini

Martellini

Bubba

et al. 2009

Microchemical Journal

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a b s t r a c t a r t i c l e i n f oSea surface microlayer (SML) and sea water samples (SSW) collected in the Gerlache Inlet Sea (Antarctica) were analysed for n-alkanes and polycyclic aromatic hydrocarbons (PAHs). The SML is a potential enrichment site of hydrophobic organic compounds compared to the underlying water column. Total concentration ranges of n-alkanes and PAHs (dissolved and particulate) in subsurface water (− 0.5 m depth) were 272-553 ng l − 1 (mean: 448 ng l − 1 ) and 5.27-9.43 ng l − 1 (mean: 7.06 ng l − 1 ), respectively. In the SML, the concentration ranges of n-alkanes and PAHs were 353-968 ng l − 1 (mean: 611 ng l − 1 ) and 7.32-23.94 ng l − 1 (mean: 13.22 ng l − 1 ), respectively. To evaluate possible PAH contamination sources, specific PAH ratios were calculated. The ratios reflected a predominant petrogenic input. A characterisation of surface active substances was also performed on SML and SSW samples, both by gas bubble extraction, and by dynamic surface tension measurements. Results showed a good correlation between n-alkanes, PAHs and refractory organic matter.

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Section: Gas Bubble Extractionsupporting

confidence: 57%

n-Alkanes, PAHs and surfactants in the sea surface microlayer and sea water samples of the Gerlache Inlet sea (Antarctica)

Stortini

Martellini

Bubba

et al. 2009

Microchemical Journal

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“…For instance, the As concentration for H. grandifolius in Admiralty Bay was only 13% (112 µg g -1 ) of those observed by Farías et al (2002) for samples from the Argentinian base at Potter Cove (King George Island), and 16% (91 µg g -1 ) for those obtained by Runcie & Riddle (2004) for Casey Station, East Antarctica. e same pattern was observed when comparing Cd concentration for S. neumayeri and P. corrugatus from Terra Nova Bay (Ross Sea-Northern Victoria Land), with our estimates being only 14 and 23%, respectively, of those observed by Dalla Riva et al (2004). Only for Zn, and in this case in a closer sampling point (in front of EACF), our concentrations were slightly smaller than those observed by Santos et al (2006) for B. gigantea, G. antarctica and N. concinna.…”

Section: Discussionsupporting

confidence: 87%

Bioaccumulation of Potentially Toxic Trace Elements in Benthic Organisms from Admiralty Bay, King George Island, Antarctica

Majer¹,

Petti²,

Corbisier³

et al. 2012

INCT-APA

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e bioaccumulation of trace elements is de ned as the uptake of a chemical by an organism from the abiotic and/or biotic (food) environment, and is a widely observed and very important process considering the impact assessment of anthropogenic activities. In Antarctica the main local source of metal and metalloid is related to the activities of research stations. In order to verify the contribution of the Comandante Ferraz Brazilian Antarctica Station (EACF-Portuguese acronym, in continuity) in the accumulation of these elements, and to supply baseline values to allow future monitoring, the concentration of Ag, As, Cd, Cu, Ni, Pb and Zn was measured in twelve benthic Antarctic species (Desmarestia sp, Himantothallus grandifolius, Laternula elliptica, Yoldia eightsi, Amphioplus acutus, Bovalia gigantea, Gondogeneia antarctica, Sterechinus neumayeri, Nacella concinna, Paraserolis polita, Parborlasia corrugatus and Glyptonotus antarcticus). A wide variation in metal content was observed depending on the species and the element. ese concentrations were usually lower than those of other Antarctic areas, not indicating relevant anthropogenic impacts of EACF. However, considering the serious re incident that occurred at the end of last summer (February/2012), and that relevant measures of heavy metals (such as Pb, Cd, and Zn) are released in this kind of event, this data, and the associated methodology, attains particular importance, due to their potential to enlighten the extension of this impact, as well as, the success of any recuperation strategy.

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“…Cerrano et al 2000;2001;Chiantore et al, 1998;2001;Guidetti et al, 2006;Schiaparelli and Linse, 2006;Dell'Acqua et al 2017, Moro et al, in press). This species was also proposed as a candidate for a 'Southern Ocean mussel-watch program' (Berkman and Nigro, 1992;Nigro et al, 1997;Dalla Riva et al, 2004).…”

Section: Fouling Characterization and Molecular Analysesmentioning

confidence: 99%

Peer Review #2 of "Oceanographic moorings as year-round laboratories for investigating growth performance and settlement dynamics in the Antarctic scallop Adamussium colbecki (E. A. Smith, 1902) (v0.2)"

Kobayashi¹

2019

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Background. Oceanographic Moorings (OMs) are standard marine platforms composed of wires, buoys, weights and instruments, and are used as in situobservatories to record water column properties. However, OMs are also comprised of hard substrates on which a variety of invertebrates can settle when they encounter these structures along their dispersal routes. In this contribution, we studied the fouling communities found on two OMs deployed in the Ross Sea (Antarctica). Furthermore, a cage containing the Antarctic scallop Adamussium colbecki (Smith, 1902) was incorporated in the OM. The growth of the caged A. colbecki were evaluated after one year and their shells used as biological proxy for seawater temperature and salinity. Methods. A variety of settlers were collected from two different OMs deployed in the Ross Sea (Antarctica) and species identified using a combination of morphological and genetic (mainly through DNA barcoding) characteristics. Caged scallops were individually marked with permanent tags and their growth studied in terms of Size-Increment Data (SID). Cages were specifically designed to prevent damage to individuals due to water drag during OM deployment and retrieval. Growth parameters from the caged individuals were applied to the Adamussium juveniles that had settled on the mooring, to trace the likely settlement period. Results. The growth performance of caged A. colbecki was similar to that from previous growth studies of this species. The remarkable survival rate of caged specimens (96.6%) supports the feasibility of caging experiments, even for a species with a fragile shell such as the Antarctic scallop. Some of the new recruits found on the mooring were the Antarctic scallop A. colbecki, the same species we put into special cages fixed to it. The settlement of the Adamussium juveniles started during the Austral spring with a peak in summer months and, remarkably, coincided with seasonal changes in water temperature and flow direction, which were recorded by the mooring's instruments. Genetic data from other settlers provided new information about their larval ecology and connectivity. Discussion. OMs are expensive and complex experimental platforms that, at present, are strictly used for the acquisition of physical and biogeochemical data. Their use for in situ ecological experiments on model organisms suitable for caging and to study fouling species has yet to be fully explored. We present the outcomes of a study, which represents a baseline for the characterization of Antarctic fouling biodiversity. We hope that in the near future an internationally coordinated systematic study of settlers could be initiated around the Antarctic continent. This could utilise 'new generation OMs' equipped with standardized settlement structures and agreed sampling protocols for the study of fouling communities.

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The utilization of the Antarctic environmental specimen bank (BCAA) in monitoring Cd and Hg in an Antarctic coastal area in Terra Nova Bay (Ross Sea––Northern Victoria Land)

Cited by 55 publications

References 18 publications

n-Alkanes, PAHs and surfactants in the sea surface microlayer and sea water samples of the Gerlache Inlet sea (Antarctica)

n-Alkanes, PAHs and surfactants in the sea surface microlayer and sea water samples of the Gerlache Inlet sea (Antarctica)

Bioaccumulation of Potentially Toxic Trace Elements in Benthic Organisms from Admiralty Bay, King George Island, Antarctica

Peer Review #2 of "Oceanographic moorings as year-round laboratories for investigating growth performance and settlement dynamics in the Antarctic scallop Adamussium colbecki (E. A. Smith, 1902) (v0.2)"

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