DNA adducts and polycyclic aromatic hydrocarbon (PAH) tissue levels in blue mussels (Mytilus spp.) from Nordic coastal sites

Halldóra Skarphédinsdóttir, Gunilla Ericson, Jörundur Svavarsson, Kristoffer Næs

Rannsóknarafurð: Framlag til fræðitímaritsGreinritrýni

28 Tilvitnanir (Scopus)

Útdráttur

DNA adducts in gills and digestive gland, as well as polycyclic aromatic hydrocarbon (PAH) tissue levels were analysed in blue mussels (Mytilus spp.) from Nordic coastal areas (Iceland, Norway and Sweden) with diffuse or point sources of PAHs of various origins. Both DNA adduct and PAH tissue levels were generally low, indicating low PAH exposure to the mussels in the areas studied. DNA adducts were found to be higher in gills than in digestive gland of the mussels at all sites studied. Elevated DNA adduct levels in gills were found at 6 sites out of 18 compared to reference sites in respective coastal zones. Adduct levels ranged from 0.5 to 10 nmol adducts/mol normal nucleotides, being highest in mussels from Reykjavík harbour, Iceland (intertidal mussels), and from Fiskaatangen, Norway (subtidal mussels). Total PAH tissue levels in the mussels ranged between 40 and 11,670 ng/g dry wt., and were significantly correlated with DNA adduct levels (r2 = 0.73, p < 0.001). PAH ratio values indicated that the PAHs were in most cases of pyrolytic origin, but with petrogenic input near harbours and an oil refinery.

Upprunalegt tungumálEnska
Síður (frá-til)479-491
Síðufjöldi13
FræðitímaritMarine Environmental Research
Bindi64
Númer tölublaðs4
DOI
ÚtgáfustaðaÚtgefið - okt. 2007

Athugasemd

Funding Information:
We thank Lise Tveiten at the Norwegian Institute for Water Research for collection of mussels and dissection of tissues for DNA adduct analyses at the Norwegian sampling sites, and Jón Sólmundson and Hjalti Karlsson for assisting with sampling of mussels at Ísafjörður and Ólafsvík in Iceland. We also thank three anonym referees for valuable comments that helped to improve this paper. This project was supported by grants from the Nordic Council of Ministers.

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