Bioaccumulation of microcystins in invasive bivalves: a case study from the boreal lagoon ecosystem

• Autorzy: Paldavičienė A. , Zaiko A. , Mazur-Marzec H. , Razinkovas-Baziukas A.

Identyfikatory

DOI

10.1016/j.oceano.2014.10.001

• Języki publikacji: EN

Abstrakty

EN

In the current study we present the first report on the bioaccumulation of microcystins (MC) in zebra mussel Dreissena polymorpha from the eutrophic brackish water Curonian Lagoon. The bioaccumulation capacity was related to age structure of mussels and ambient environmental conditions. We also discuss the relevant implications of these findings for biomonitoring of toxic cyanobacteria blooms in the Curonian Lagoon and potential consequences for D. polymorpha cultivation activities considered for the futures as remediation measure. Samples for the analysis were collected twice per year, in June and September, in 2006, 2007 and 2008, from two sites within the littoral zone of the lagoon. The highest microcystin concentrations were measured in mussels larger than 30 mm length and sampled in 2006 (when a severe toxic cyanobacteria bloom occurred). In the following years, a consistent reduction in bioaccumulated MC concentration was noticed. However, certain amount of microcystin was recorded in mussel tissues in 2007 and 2008, when no cyanotoxins were reported in the phytoplankton. Considering high depuration rates and presence of cyanotoxins in the bottom sediments well after the recorded toxic blooms, we assume mechanism of secondary contamination when microcystin residuals could be uptaken by mussels with resuspended sediment particles.

Słowa kluczowe

EN

microcystins; bioaccumulation; Dreissena polymorpha; Baltic Sea; Curonian Lagoon

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2015
• Tom: No. 57 (1)
• Strony: 93--101
• Opis fizyczny: Bibliogr. 95 poz., rys., tab., wykr., mapy

Twórcy

autor

Paldavičienė A.

• Coastal Research and Planning Institute, University of Klaipėda, H. Manto 84, LT 92294 Klaipeda, Lithuania

autor

Zaiko A.

• Department of Marine Biology and Ecology, Institute of Oceanografy, University of Gdańsk, Gdynia, Poland

autor

Mazur-Marzec H.

• Coastal Research and Planning Institute, University of Klaipėda, H. Manto 84, LT 92294 Klaipeda, Lithuania

autor

Razinkovas-Baziukas A.

• Coastal Research and Planning Institute, University of Klaipėda, H. Manto 84, LT 92294 Klaipeda, Lithuania

Bibliografia

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