Biokinetics of Ag-110m in Baltic shrimp Palaemon adspersus under elevated pCO(2)


Sezer N., KILIÇ Ö., Sıkdokur E., BELİVERMİŞ M.

JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, vol.538, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 538
  • Publication Date: 2021
  • Doi Number: 10.1016/j.jembe.2021.151528
  • Journal Name: JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, BIOSIS, CAB Abstracts, Environment Index, Pollution Abstracts, Veterinary Science Database
  • Istanbul University Affiliated: Yes

Abstract

Ocean acidification impacts the physiology of crustaceans as well as marine calcifiers although most of the hitherto studies has focused on calcifiers. Bioconcentration of elements in a marine animal depends on seawater chemistry and the animal's physiology. Here we studied biokinetics and body distribution of Ag in Baltic shrimp Palaemon adspersus for 47 days by using radiotracer method (Ag-110m). The bioconcentration of Ag-110m was assessed under three pCO(2) levels: 370, 795 and 1634 mu atm. Uptake rate constants of Ag-110m were inversely related to pH (3.1 at pH: 8.1, 4.2 at pH: 7.8 and 4.9 at pH: 7.5). A higher percentage of Ag accumulated in edible parts in the shrimps reared in acidified seawater compared to control. The moulting frequency was significantly higher in acidified seawater conditions compared to the control condition. The results of this study suggest that seawater acidification may partly modify Ag bioconcentration in Baltic shrimp Palaemon adspersus as well as energy-demanding physiological processes like moulting.