PMID- 20385405
OWN - NLM
STAT- MEDLINE
DCOM- 20100617
LR  - 20131121
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 408
IP  - 13
DP  - 2010 Jun 1
TI  - A comparison of PCB bioaccumulation factors between an arctic and a temperate 
      marine food web.
PG  - 2753-60
LID - 10.1016/j.scitotenv.2010.03.013 [doi]
AB  - To test how environmental conditions in the Arctic and the resulting ecological 
      adaptations affect accumulation of persistent organic pollutants (POPs) in the 
      marine food web, bioaccumulation of four polychlorinated biphenyls (PCBs) in an 
      arctic (Barents Sea 77 degrees N-82 degrees N) and a temperate marine (Baltic Sea 
      54 degrees N-62 degrees N) food web were compared. Three different trophic levels 
      were studied (zooplankton, fish, and seal), representing the span from 
      first-level consumer to top predator. Previously published high-quality data on 
      PCB water concentrations in the two areas were used for calculation of 
      bioaccumulation factors (BAF). BAF was calculated as the ratio of the PCB 
      concentration in the organism ([PCB](org); pg/kg lipid) to the dissolved water 
      concentration (C(w); pg/L). The BAF(Arctic):BAF(Temperate) ratios were above 1 
      for all four PCB congeners in zooplankton (6.4-13.8) and planktivorous fish 
      (2.9-5.0)), whereas the ratios were below 1 in seal. The mean ratio between 
      arctic and temperate BAFs for all trophic levels and congeners 
      (BAF(Arcti):BAF(Temperate)) was 4.8. When the data were corrected for the 
      seawater temperature difference between the two ecosystems, the ratio was 2.0. We 
      conclude that bioaccumulation differences caused by ecological or physiological 
      adaptations of organisms between the two ecosystems were well within a water 
      concentration variability of 50%. Further, our data support the hypothesis that 
      lower seawater temperature lead to a thermodynamically favoured passive 
      partitioning to organic matrices and thus elevated ambient BAFs in the Arctic 
      compared to the Baltic Sea. This would imply that bioaccumulation in the Arctic 
      may be described in the same way as bioaccumulation in temperate regions, e.g. by 
      the use of mechanistic models parameterised for the Arctic.
CI  - Copyright (c) 2010. Published by Elsevier B.V.
FAU - Sobek, Anna
AU  - Sobek A
AD  - Department of Applied Environmental Science (ITM), Stockholm University, Svante 
      Arrhenius Vag 8c, Stockholm, Sweden.
FAU - McLachlan, Michael S
AU  - McLachlan MS
FAU - Borga, Katrine
AU  - Borga K
FAU - Asplund, Lillemor
AU  - Asplund L
FAU - Lundstedt-Enkel, Katrin
AU  - Lundstedt-Enkel K
FAU - Polder, Anuschka
AU  - Polder A
FAU - Gustafsson, Orjan
AU  - Gustafsson O
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100411
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Water Pollutants, Chemical)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Animals
MH  - Arctic Regions
MH  - Climate
MH  - Environmental Monitoring
MH  - Fishes/growth & development/metabolism
MH  - *Food Chain
MH  - Polychlorinated Biphenyls/analysis/*metabolism
MH  - Seals, Earless/metabolism
MH  - Seawater/chemistry
MH  - Water Pollutants, Chemical/analysis/*metabolism
MH  - Zooplankton/metabolism
EDAT- 2010/04/14 06:00
MHDA- 2010/06/18 06:00
CRDT- 2010/04/14 06:00
PHST- 2009/12/02 00:00 [received]
PHST- 2010/03/04 00:00 [revised]
PHST- 2010/03/08 00:00 [accepted]
PHST- 2010/04/14 06:00 [entrez]
PHST- 2010/04/14 06:00 [pubmed]
PHST- 2010/06/18 06:00 [medline]
AID - S0048-9697(10)00260-3 [pii]
AID - 10.1016/j.scitotenv.2010.03.013 [doi]
PST - ppublish
SO  - Sci Total Environ. 2010 Jun 1;408(13):2753-60. doi: 
      10.1016/j.scitotenv.2010.03.013. Epub 2010 Apr 11.