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Bioaccumulation of C-14-PCB 101 and C-14-PBDE 99 in the marine planktonic copepod Calanus finmarchicus under different food regimes

Artikel i vetenskaplig tidskrift
Författare Kerstin Magnusson
M. Magnusson
P. Ostberg
M. Granberg
Peter Tiselius
Publicerad i Marine Environmental Research
Volym 63
Nummer/häfte 1
Sidor 67-81
ISSN 0141-1136
Publiceringsår 2007
Publicerad vid Institutionen för marin ekologi
Sidor 67-81
Språk en
Länkar <Go to ISI>://000243643200005
Ämnesord bioaccumulation, zooplankton, phytoplankton, organic pollutants, pcb, pbde, brominated flame retardants, nonionic organic-chemicals, polychlorinated-biphenyls, acartia-tonsa, partition-coefficients, carbon, phytoplankton, zooplankton, pcbs, equilibrium
Ämneskategorier Biologiska vetenskaper, Ekologi

Sammanfattning

Bioaccumulation factors (BAFs) were determined for C-14-PCB 101 and C-14-PBDE 99 in the pelagic copepod Calanus finmarchicus after exposure to either contaminated water or after being fed contaminated phytoplankton (the dinoflagellate Prorocentrum minimum or the diatom Thalassiosira weissflogii). BAFs in algae range from 7.6 to 8.0 for PCB 101 and from 8.5 to 8.6 for PBDE 99. BAFs in copepods were significantly lower, 6.3-6.8 for PCB 101 and 7.6 for PBDE 99. For each compound, the BAFs in copepods were independent of what algal species they had consumed, even though the bioaccumulation of both compounds were higher in P. minimum than in T. weissflogii. The ratios between BAF and the K-ow for PCB 101 and PBDE 99 were similar within each of the three species, but varied between species. For copepods the ratios were 2-4, for T weissfloggii 15-22 and for P. minimum 32-40. The data strongly suggest that the two compounds bioaccumulate in a similar manner and that there is no biomagnification in the transfer between phytoplankton and herbivorous copepods. (c) 2006 Elsevier Ltd. All rights reserved.

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