J 2018

First data on uranium uptake in three nototheniid fishes from Antarctica (James Ross Island)

ROCHE, Kevin Francis, Jan KUTA, Ivo SEDLÁČEK, Rostislav ČERVENKA, Kateřina TOMANOVÁ et. al.

Basic information

Original name

First data on uranium uptake in three nototheniid fishes from Antarctica (James Ross Island)

Authors

ROCHE, Kevin Francis (826 United Kingdom of Great Britain and Northern Ireland), Jan KUTA (203 Czech Republic, guarantor, belonging to the institution), Ivo SEDLÁČEK (203 Czech Republic, belonging to the institution), Rostislav ČERVENKA (203 Czech Republic, belonging to the institution), Kateřina TOMANOVÁ (203 Czech Republic, belonging to the institution) and Pavel JURAJDA (203 Czech Republic)

Edition

Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2018, 0045-6535

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.108

RIV identification code

RIV/00216224:14310/18:00101519

Organization unit

Faculty of Science

UT WoS

000446149600054

Keywords in English

Antarctic Peninsula; Bioaccumulation; Czech Antarctic station; Notothenioidei; Radioactive contaminants; Shallow coastal waters

Tags

Tags

International impact, Reviewed
Změněno: 8/4/2020 12:20, Mgr. Marie Šípková, DiS.

Abstract

V originále

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 mu g g(-1) +/- 0.01, T bernacchii 0.17 mu g g(-1) +/- 0.10; G. gibberifrons 0.11 mu g g(-1) +/- 0.04), linear regressions against standard length indicated bioaccumulation in T. bernacchii (ANOVA, F = 7.8349, P = 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.

Links

EF16_013/0001761, research and development project
Name: RECETOX RI
GBP505/12/G112, research and development project
Name: ECIP - Evropské centrum ichtyoparazitologie
Investor: Czech Science Foundation
LM2015078, research and development project
Name: Česká polární výzkumná infrastruktura (Acronym: CzechPolar2)
Investor: Ministry of Education, Youth and Sports of the CR