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First data on uranium uptake in three nototheniid fishes from Antarctica (James Ross Island)
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SYSNO ASEP 0491989 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název First data on uranium uptake in three nototheniid fishes from Antarctica (James Ross Island) Tvůrce(i) Roche, Kevin Francis (UBO-W) RID, SAI
Kuta, J. (CZ)
Sedláček, I. (CZ)
Červenka, R. (CZ)
Tomanová, K. (CZ)
Jurajda, Pavel (UBO-W) RID, SAI, ORCIDCelkový počet autorů 6 Zdroj.dok. Chemosphere. - : Elsevier - ISSN 0045-6535
Roč. 211, November (2018), s. 510-514Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Antarctic Peninsula ; Bioaccumulation ; Czech Antarctic station ; Notothenioidei ; Radioactive contaminants ; Shallow coastal waters Vědní obor RIV EH - Ekologie - společenstva Obor OECD Environmental sciences (social aspects to be 5.7) CEP GBP505/12/G112 GA ČR - Grantová agentura ČR Institucionální podpora UBO-W - RVO:68081766 UT WOS 000446149600054 EID SCOPUS 85053209112 DOI 10.1016/j.chemosphere.2018.07.195 Anotace Recent studies have confirmed historic atmospheric deposition of uranium in Antarctica, with a steep and significant increase in levels deposited since the 1980s in Antarctic Peninsula ice core samples. To date, however, there has been little or no attention paid to uranium in the Antarctic food web. Here, we present results for uranium content in scales of three common nototheniid species (Trematomus bernacchii, Gobionotothen gibberifrons, Notothenia coriiceps) from coastal waters off James Ross Island (Antarctic Peninsula). While mean total uranium levels (mean ± SD) were low and similar between species (N. coriiceps 0.08 mg g 1 ± 0.01, T. bernacchii 0.17 mg g 1 ± 0.10, G. gibberifrons 0.11 mg g 1 ± 0.04), linear regressions against standard length indicated bioaccumulation in T. bernacchii (ANOVA, F ¼ 7.8349, P ¼ 0.0076). We suggest this may be the result of dietary specialisation on prey with calcareous shells that accumulate uranium. To the best of our knowledge, this paper provides the first quantitative baseline data on uranium levels in coastal Antarctic nototheniids. While the low levels recorded are unlikely to represent a threat within the food chain, we suggest that further long-term trophic studies (including stable isotope analysis) are needed, recognising that the feeding ecology of individual species (and even individuals) can have a strong effect on overall trends. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2019
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