Effects of ocean acidification on acid-base physiology, skeleton properties, and metal contamination in two echinoderms from vent sites in Deception Island, Antarctica

Giglio, Sarah Di; Agüera, Antonio; Pernet, Ph.; M’Zoudi, Saloua; Angulo‐Preckler, Carlos; Ávila, Conxita; Dubois, Ph.

doi:10.1016/j.scitotenv.2020.142669

Cited by 7 publications

(3 citation statements)

References 98 publications

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“…Cr mean content in both starfish was similar to the Cr content in Echinaster sepositus from Saronikos gulf, Greece, and half the mean value of Marthasterias glacialis collected in the same site 98 . Pb values reported in the present study for the starfishes were more than twice the Pb concentration in Odontaster validus reported by Grotti et al 97 (Table 3) and were very similar to those reported for the same species in Deception Island (South Shetland Islands) 99 and for the common starfish Asterias rubens in the Belgian coast 100 . The Hg mean levels reported in our study fell between the levels reported for Odontaster validus of Terra Nova Bay in Dalla Riva et al 101 (40.00 ng g −1 ) and Bargagli et al 84 (110.00 ng g −1 dw).…”

Section: Discussionsupporting

confidence: 91%

Distribution of trace elements in benthic infralittoral organisms from the western Antarctic Peninsula reveals no latitudinal gradient of pollution

Castro-Fernández

Cardona

Ávila

2021

Sci Rep

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Antarctica is considered one of the most pristine regions on Earth, but evidences of global and local anthropogenic pollution exist. Chromium (Cr), lead (Pb) and mercury (Hg) are bioaccumulated and sometimes biomagnified through the trophic web. We aim to determine whether a latitudinal gradient of these trace elements exists in benthic organisms along the rocky shores of the Antarctic Peninsula and the South Shetland Islands. Levels of Cr, Pb, and Hg were measured by ICP-MS in two macroalgae (Palmaria decipiens and Desmarestia anceps or Desmarestia menziesii), one gastropod (Nacella concinna), two starfishes (Odontaster validus and Diplasterias brucei), and suspended particulate organic matter (SPOM) from five sampling sites ranging in latitude from 62°11′17″S to 67°33′47″S. Levels of trace elements differed among sites and species, but no latitudinal gradient was observed for these pollutants. Levels of Hg and Pb in animals were consistent with biomagnifications along the food web, as were higher is starfish than in limpets. However, macroalgae and SPOM are unlikely to be the main primary producers supporting those consumers, as Hg levels in macroalgae and Pb levels in SPOM were much higher than in animals. The levels of trace elements detected were similar or higher than in other Antarctic places and other regions of the world, thus indicating that the Antarctic Peninsula area is as polluted as the rest of the world.

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Section: Discussionsupporting

confidence: 91%

Distribution of trace elements in benthic infralittoral organisms from the western Antarctic Peninsula reveals no latitudinal gradient of pollution

Castro-Fernández

Cardona

Ávila

2021

Sci Rep

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“…Nevertheless, regarding the chemical composition of the sediments, some ions differed in that study compared to our findings: in the case of soluble SO 4 2− , the observed concentration was one thousand times lower (1.39 ± 1.17 μg/g), and NO 3− was ten times less concentrated (0.22 ± 0.15 μg/g). The chemical analysis of several sediment samples revealed that in Whaler’s Bay some metallic elements were more concentrated than in other island locations [ 32 ]. Among all, Fe was observed as the most common element (15.814 ± 581 μg/g).…”

Section: Discussionmentioning

confidence: 99%

Microbial Communities Present in Hydrothermal Sediments from Deception Island, Antarctica

et al. 2021

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Deception Island is a geothermal location in Antarctica that presents active fumaroles, which confers unique characteristics to this habitat. Several studies about microbial communities in Antarctica have been carried out, nevertheless, Antarctic microbiota is still partially unknown. Here we present a multidisciplinary study about sediments obtained by deposition during 4 years in which several approaches have been considered for their characterization. First, a physicochemical characterization, using ionic chromatography and mass spectrometry for the determination of most abundant ions (chloride and sulphate) and elements (mainly silicon), was conducted. In addition, the total microbial community was studied using a metataxonomical approach, revealing a bacterial community dominated by Proteobacteria and Thaumarchaeota as the main archaeal genera and a fungal community mainly composed by Aspergillaceae. Culture-dependent studies showed low microbial diversity, only achieving the isolation of Bacillus-related species, some of them thermophilic, and the isolation of common fungi of Aspergillus or Penicillium spp. Furthermore, diatoms were detected in the sediment and characterized attending to their morphological characteristics using scanning electron microscopy. The study reveals a high influence of the physicochemical conditions in the microbial populations and their distribution, offering valuable data on the interaction between the island and water microbiota.

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“…Improper alkali disposal or improper design of waste control system often leads to soil pollution, and these environmental changes will have a substantial adverse impact on human life ( Vindula et al, 2020 ; Di Giglio et al, 2021 ). Accordingly, we selected proteinase without additional adjustment of pH, such as neutral proteinase and protamex proteinase, to extract PCCL by enzymatic hydrolysis-assisted organic solvent extraction.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic extraction and functional properties of phosphatidylcholine from chicken liver

Huang

et al. 2022

Poultry Science

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Effects of ocean acidification on acid-base physiology, skeleton properties, and metal contamination in two echinoderms from vent sites in Deception Island, Antarctica

Cited by 7 publications

References 98 publications

Distribution of trace elements in benthic infralittoral organisms from the western Antarctic Peninsula reveals no latitudinal gradient of pollution

Distribution of trace elements in benthic infralittoral organisms from the western Antarctic Peninsula reveals no latitudinal gradient of pollution

Microbial Communities Present in Hydrothermal Sediments from Deception Island, Antarctica

Enzymatic extraction and functional properties of phosphatidylcholine from chicken liver

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