Bioaccumulation of trace metals in mussel (Mytilus galloprovincialis) from Mali Ston Bay during DSP toxicity episodes

Ivana Ujević; Nenad Vuletić; Jelena Lušić; Nikša Nazlić; Grozdan Kušpilić

doi:10.3390/molecules200713031

Bioaccumulation of trace metals in mussel (Mytilus galloprovincialis) from Mali Ston Bay during DSP toxicity episodes

Molecules. 2015 Jul 17;20(7):13031-40. doi: 10.3390/molecules200713031.

Authors

Ivana Ujević¹, Nenad Vuletić², Jelena Lušić³, Nikša Nazlić⁴, Grozdan Kušpilić⁵

Affiliations

¹ Laboratory of Plankton and Shellfish Toxicity, Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, P.O. Box 500, 21000 Split, Croatia. ujevic@izor.hr.
² Faculty of Sciences, University of Split, Teslina 12, 21000 Split, Croatia. nenov@net.hr.
³ Laboratory of Chemical Oceanography and Sedimentology of the Sea, Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, P.O. Box 500, 21000 Split, Croatia. lusic@izor.hr.
⁴ Laboratory of Plankton and Shellfish Toxicity, Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, P.O. Box 500, 21000 Split, Croatia. nazlic@izor.hr.
⁵ Laboratory of Chemical Oceanography and Sedimentology of the Sea, Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, P.O. Box 500, 21000 Split, Croatia. kuspe@izor.hr.

Abstract

The Croatian National Monitoring Program revealed the presence of Diarrhetic Shellfish Poisoning (DSP) toxicity in Mediterranean blue mussel (Mytilus galloprovincialis) from breeding farms in southern Adriatic Sea through January to June 2011. The mouse bioassay tests (MBA; at the time the official method for DSP toxins) were accompanied by atypical symptomatology in the animals and this caused doubts about the assay results. Consequently, in parallel studies reported here, the concentration of Cd, Cr, Cu, Ni, Pb and Zn in soft tissue of DSP positive and negative mussels samples was determined. Cd, Cr, Zn and Ni show higher values in approximately 75% of the DSP positive samples, whereas for Pb and Cr the values were 26% and 34%, respectively. This trend was unchanged during the whole observation period.

Keywords: bioaccumulation; diarrhetic shellfish poisoning; mussel, DSP; shellfish toxicity; trace metals.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Aquaculture
Environmental Monitoring / methods
Mali
Mytilus / chemistry
Mytilus / metabolism*
Shellfish Poisoning / etiology
Tissue Distribution
Trace Elements / pharmacokinetics*
Trace Elements / poisoning

Substances

Trace Elements