The geochemical role of phyto- and zooplankton in the extraction of chemical elements from water

Chebotina, M. Ya.; Polyakov, E. V.; Guseva, V. P.; Khlebnikov, N. A.; Суриков, В. Т.

doi:10.1134/s1028334x11080113

Cited by 3 publications

(2 citation statements)

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“…There are few data on Nb and Ta concentrations in marine organisms, although there is some evidence of a high accumulation coefficient for these elements by zooplankton in aquatic systems (Chebotina et al, 2011). Sánchez-Rodríguez et al (2001) reported Ta concentrations ranging from 5 to 350 ng/g in different seaweed species collected in Loreto Bay (Gulf of California, Mexico).…”

Section: Concentrations and Uptake By Marine Organismsmentioning

confidence: 99%

Less-Studied Technology-Critical Elements (Nb, Ta, Ga, In, Ge, Te) in the Marine Environment: Review on Their Concentrations in Water and Organisms

et al. 2019

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The development in recent years of new technological and energy-related applications has increased the use and demand of a specific group of trace elements (Technology-Critical Elements, TCEs). Among the TCEs, there are a number of elements (Nb, Ta, Ga, In, Ge, Te) for which their biogeochemical cycles and their ecotoxicology and uptake by biota has been scarcely studied; they are known as Less-Studied TCEs (LSTCEs). Here we present a review on the concentrations of LSTCEs in marine waters and biota. We show that whereas oceanic profiles have been reported for all LSTCEs, and their geochemical behavior is well-constrained for some of them (e.g., Ga, In, Ge), only very few studies are available on the concentrations and behavior of these elements in estuarine and coastal waters which makes impossible the assessment of their status in environmentally impacted coastal areas. In marine biota, despite of the fact that concentrations have been reported in several organisms, information on the factors controlling the LSTCEs uptake or their potential to be biomagnified through the food web is mostly missing. It is therefore encouraged further research in order to have a better assessment on the impact of the uses of these metals on the concentrations of LSTCEs in such sensitive coastal zones, including their concentrations, bioavailability, thresholds for non-lethal endpoints and their capability of biomagnification.

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Section: Concentrations and Uptake By Marine Organismsmentioning

confidence: 99%

Less-Studied Technology-Critical Elements (Nb, Ta, Ga, In, Ge, Te) in the Marine Environment: Review on Their Concentrations in Water and Organisms

et al. 2019

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“…Ascidians (Styela plicata) from Japanese waters had 100−410 μg g −1 dw Ta 8 (dw: dry weight) whereas marine organisms from coastal areas of southern England ranged from 0.009 in mollusks to 2.3 μg g −1 dw in crustaceans. 9 Chebotina et al 10 reported the bioconcentration of Ta from water to phytoplankton (>10 1 ) and zooplankton (>10 7 ). Despite evidence of Ta bioaccumulation in aquatic organisms, the factors affecting its concentrations in different species have not been examined.…”

Section: ■ Introductionmentioning

confidence: 99%

Biomagnification of Tantalum through Diverse Aquatic Food Webs

Espejo

Kitamura

Kidd

et al. 2018

Environ. Sci. Technol. Lett.

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Tantalum (Ta) is a technology-critical element (TCE) that is growing in global demand because of its use in electronic and medical devices, capacitors, aircraft, and hybrid cars. Despite its economic relevance, little is known about its environmental concentrations and the trophodynamics of Ta in aquatic food webs have not been studied. Invertebrates and fishes from coastal marine food webs representing different climatic zones in northwestern Chile, western Chilean Patagonia, and the Antarctic Peninsula were sampled and analyzed for Ta. The trophic level (TL) of species was assessed with nitrogen stable isotopes (δ 15 N), and carbon stable isotopes (δ 13 C) were used to trace energy flow in the food webs. Levels of Ta varied among taxa and sites, with the highest values found in fishes (0.53−44.48 ng g −1 dry weight) and the lowest values found in invertebrates (0.11−7.80 n ng g −1 dry weight). The values of δ 13 C ranged from −11.79 to −25.66 ‰. Ta biomagnified in all four aquatic food webs, with slopes of log Ta versus TL ranging from 0.16 to 0.60. This has important implications as little is known about its potential toxicity and there may be increased demand for TCEs such as Ta in the future.

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