<abstract xmlns="http://www.w3.org/1999/xhtml">

90Sr activity was determined in <italic>Zostera marina</italic> collected in the Gulf of Gdańsk in 2008-2013. 90Sr activity in <italic>Z. marina</italic> from Jama Kuźnicka and Klif Orłowski range from 0.83 Bq kg−1 d.w. to 3.78 Bq kg−1 d.w. and from 0.68 Bq kg−1 d.w. to 4.95 Bq kg−1 d.w., respectively. The plants collected in spring-summer showed significant differences between 90Sr content in blades - 1.55 Bq kg−1 d.w. in 2011 and 2.18 Bq kg−1 d.w. in 2013, and in roots - 7.75 Bq kg−1 d.w. and 11.44 Bq kg−1 d.w., respectively. The reduction in 90Sr concentrations in <italic>Z. marina</italic> roots to 1-2 Bq kg−1 d.w. in summer resulted from the transport of this element to the young parts of the plant. In autumn and winter, the 90Sr content in the blades of <italic>Z. marina</italic> was increasing and reached the maximum of 3.77 Bq kg−1 d.w. This could be explained by the process opposite to dilution, related to the biomass reduction and strontium concentration in the plant tissues. Changes in 90Sr concentration in <italic>Z. marina</italic> tissues are affected by isotope concentration in seawater as well as by salinity, which affects the concentration of Ca2+ - for which Sr2+ is a chemical analogue.
</abstract>

90Sr activity was determined in Zostera marina collected in the Gulf of Gdańsk in 2008-2013. 90Sr activity in Z. marina from Jama Kuźnicka and Klif Orłowski range from 0.83 Bq kg−1 d.w. to 3.78 Bq kg−1 d.w. and from 0.68 Bq kg−1 d.w. to 4.95 Bq kg−1 d.w., respectively. The plants collected in spring-summer showed significant differences between 90Sr content in blades - 1.55 Bq kg−1 d.w. in 2011 and 2.18 Bq kg−1 d.w. in 2013, and in roots - 7.75 Bq kg−1 d.w. and 11.44 Bq kg−1 d.w., respectively. The reduction in 90Sr concentrations in Z. marina roots to 1-2 Bq kg−1 d.w. in summer resulted from the transport of this element to the young parts of the plant. In autumn and winter, the 90Sr content in the blades of Z. marina was increasing and reached the maximum of 3.77 Bq kg−1 d.w. This could be explained by the process opposite to dilution, related to the biomass reduction and strontium concentration in the plant tissues. Changes in 90Sr concentration in Z. marina tissues are affected by isotope concentration in seawater as well as by salinity, which affects the concentration of Ca2+ - for which Sr2+ is a chemical analogue.

90Sr in <italic>Zostera marina</italic> from the Gulf of Gdańsk (southern Baltic Sea)

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Sr in  from the Gulf of Gdańsk (southern Baltic Sea)

90Sr activity was determined in Zostera marina collected in the Gulf of Gdańsk in 2008-2013. 90Sr activity in Z. marina from Jama Kuźnicka and Klif Orłowski...

⁹⁰Sr in Zostera marina from the Gulf of Gdańsk (southern Baltic Sea)

Article Category: Original research paper

Publié en ligne: 06 mars 2017

Pages: 24 - 29

Reçu: 22 mars 2016

Accepté: 16 mai 2016

DOI: https://doi.org/10.1515/ohs-2017-0003

© Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Figure 2

Figure 3

Evaluation results for 90Sr in HELCOM-IAEA-446 Proficiency Test on the Determination of Radionuclides in Marine Fucus Sample - Laboratory No7. Institute of Meteorology and Water Management, Gdynia, Poland (IAEA 2013)

90Sr in Zostera marina from the Gulf of Gdańsk (southern Baltic Sea)

Article Category: Original research paper

Publié en ligne: 06 mars 2017

Pages: 24 - 29

Reçu: 22 mars 2016

Accepté: 16 mai 2016

DOI: https://doi.org/10.1515/ohs-2017-0003

© Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Figure 2

Figure 3

Evaluation results for 90Sr in HELCOM-IAEA-446 Proficiency Test on the Determination of Radionuclides in Marine Fucus Sample - Laboratory No7. Institute of Meteorology and Water Management, Gdynia, Poland (IAEA 2013)

⁹⁰Sr in Zostera marina from the Gulf of Gdańsk (southern Baltic Sea)