PMID- 12099454
OWN - NLM
STAT- MEDLINE
DCOM- 20021217
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 36
IP  - 12
DP  - 2002 Jun 15
TI  - Food web magnificaton of persistent organic pollutants in poikilotherms and 
      homeotherms.
PG  - 2589-97
AB  - Food web magnification of persistent organic pollutants (POPs) was determined for 
      the Barents Sea food web using 615N as a continuous variable for assessing 
      trophic levels (TL). The food web investigated comprised zooplankton, ice fauna 
      and fish (poikilotherms, TL 1.7-3.3), and seabirds and seals (homeotherms, TL 
      3.3-4.2), with zooplankton representing the lowest and glaucous gull the highest 
      trophic level. Concentrations of lipophilic and persistent organochlorines were 
      orders of magnitude higher in homeotherms than in poikilotherms. These compounds 
      had significantly higher rates of increase per trophic level in homeotherms 
      relative to poikilotherms, with the highest food web magnification factors 
      (FWMFs) for cischlordane and p,p'-DDE. Some compounds, such as transnonachlor and 
      HCB, had similar rates of increase throughout the food web, whereas compounds 
      that are more readily eliminated (gamma-HCH) showed no relationship with trophic 
      level. It is preferable to calculate FWMFs with regard to thermal groups, because 
      the different energy requirements and biotransformation abilities between 
      poikilotherms and homeotherms may give different rates of contaminant increase 
      with trophic level. When biomagnification is compared between ecosystems, FWMFs 
      are preferable to single predator-prey biomagnification factors. FWMFs represent 
      a trophic level increase of contaminants that is average for the food chain 
      rather than an increase for a specific predator-prey relationship. The Barents 
      Sea FWMFs were generally comparable to those determined for marine food webs with 
      similar food chain lengths in the Canadian Arctic.
FAU - Hop, Haakon
AU  - Hop H
AD  - Norwegian Polar Institute, Tromso. Haakon.Hop@npolar.no
FAU - Borga, Katrine
AU  - Borga K
FAU - Gabrielsen, Geir Wing
AU  - Gabrielsen GW
FAU - Kleivane, Lars
AU  - Kleivane L
FAU - Skaare, Janneche Utne
AU  - Skaare JU
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Insecticides)
RN  - 0 (Organic Chemicals)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Animals
MH  - Arctic Regions
MH  - Biological Availability
MH  - Biotransformation
MH  - Birds
MH  - Body Temperature
MH  - Canada
MH  - Fishes
MH  - *Food Chain
MH  - Insecticides/analysis/*pharmacokinetics
MH  - Organic Chemicals/analysis/pharmacokinetics
MH  - Seals, Earless
MH  - Tissue Distribution
MH  - Water Pollutants, Chemical/analysis/*pharmacokinetics
MH  - Zooplankton
EDAT- 2002/07/09 10:00
MHDA- 2002/12/18 04:00
CRDT- 2002/07/09 10:00
PHST- 2002/07/09 10:00 [pubmed]
PHST- 2002/12/18 04:00 [medline]
PHST- 2002/07/09 10:00 [entrez]
AID - 10.1021/es010231l [doi]
PST - ppublish
SO  - Environ Sci Technol. 2002 Jun 15;36(12):2589-97. doi: 10.1021/es010231l.