Bioaccumulation of gamma emitting radionuclides in red algae from the Baltic Sea under laboratory conditions

• Autorzy: Zalewska T. , Saniewski M.
• Języki publikacji: EN

Abstrakty

EN

The bioaccumulation ability of radionuclides 51Cr, 54Mn, 57Co, 60Co, 65Zn, 85Sr, 109Cd, 110mAg, 113Sn, 137Cs and 241Am in two red algae species from the southern Baltic Sea – Polysiphonia fucoides and Furcellaria lumbricalis – was determined under laboratory conditions. P. fucoides demonstrated better bioaccumulative properties towards most of the investigated radionuclides. As a result, P. fucoides can be recommended as a good bioindicator of radioactive environmental pollution. The bioaccumulation of radionuclides in F. lumbricalis was studied during an extended laboratory experiment. The initial extensive uptake of radioisotopes was followed by the rapid removal of cations; in general, concentrations tended to decrease with time. 137Cs displayed a different behaviour, its concentration in the algae increasing over time mainly due to its large ion radius; this is a factor that could be responsible for the stronger mechanical and chemical bonding of Cs+ and that could hamper the movement of ions in both directions.

Słowa kluczowe

EN

Baltic Sea; bioaccumulation; environment pollution; Furcellaria lumbricalis; heavy metal; laboratory condition; macroalga; marine alga; marine organism; Polysiphonia fucoides; radionuclide; red alga

• Wydawca: -
• Czasopismo: Oceanologia
• Rocznik: 2011
• Tom: 53
• Numer: 2
• Opis fizyczny: p.631-650,fig.,ref.

Twórcy

autor

Zalewska T.

• Maritime Branch, Institute of Meteorology and Water Management, Waszyngtona 42, 81-342 Gdynia, Poland

autor

Saniewski M.