PMID- 15757328
OWN - NLM
STAT- MEDLINE
DCOM- 20050630
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 39
IP  - 3
DP  - 2005 Feb 1
TI  - Persistent organic pollutants in two dolphin species with focus on toxaphene and 
      polybrominated diphenyl ethers.
PG  - 692-8
AB  - Assessing trends of persistent organic pollutants (POPs) in marine mammals is 
      difficult due to age, gender, and metabolism influences on accumulation. To help 
      elucidate these effects in dolphins, POP concentrations were determined in the 
      Atlantic white-sided dolphin, Lagenorhynchus acutus, a pelagic delphinid 
      inhabiting North Atlantic waters, and in the rough-toothed dolphin, Steno 
      bredanensis, a pelagic delphinid inhabiting tropical and subtropical waters. The 
      specific objectives of this study were to determine baseline POP concentrations 
      in L. acutus and S. bredanensis blubber samples and to examine the effects of 
      age, gender, and metabolism on POP concentrations in dolphin blubber. Focus was 
      aimed at contaminants of emerging concern, specifically, toxaphene and 
      polybrominated diphenyl ethers (PBDEs). Samples collected from L. acutus (n = 47) 
      stranding events in Massachusetts (1993--2000) and S. bredanensis samples (n = 
      15) were analyzed for PCBs, toxaphene, and other organic pesticides by gas 
      chromatography/mass spectrometry (GC/MS). Age and gender influences were similar 
      between the two species, with adult females having significantly lower POP 
      concentrations as compared to adult males and juveniles. Mean sigma toxaphene 
      concentrations were highest in juvenile L. acutus, 13.0 (6.7) microg/g wet mass 
      (1 SD), and lowest in adult female S. bredanensis, 1.49 (1.4) microg/g wet mass. 
      sigma PBDE (sum of congeners 47, 99, 100, 153, and 154) concentrations were 
      highest in juvenile L. acutus, 2.41 (1.2) microg/g wet mass, and lowest in adult 
      female S. bredanensis, 0.51 (0.6) microg/g wet mass. POP concentrations did not 
      significantly differ between adult males and juveniles, suggesting metabolism of 
      congeners and/or dilution with growth. PBDE concentrations in juvenile 
      white-sided dolphins were not significantly related to collection year, 
      suggesting that there may be a lag period for higher concentrations to be 
      detected in pelagic marine mammals such as L. acutus or that concentrations have 
      already peaked in this species prior to the first collection in 1993.
FAU - Tuerk, Karen J S
AU  - Tuerk KJ
AD  - National Institute of Standards and Technology, Hollings Marine Laboratory, 
      Charleston, South Carolina 29412, USA.
FAU - Kucklick, John R
AU  - Kucklick JR
FAU - Becker, Paul R
AU  - Becker PR
FAU - Stapleton, Heather M
AU  - Stapleton HM
FAU - Baker, Joel E
AU  - Baker JE
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Environmental Pollutants)
RN  - 0 (Insecticides)
RN  - 0 (Polybrominated Biphenyls)
RN  - 8001-35-2 (Toxaphene)
SB  - IM
MH  - Adipose Tissue/chemistry
MH  - Animals
MH  - *Dolphins
MH  - Environmental Pollutants
MH  - Female
MH  - Insecticides/analysis/*pharmacokinetics
MH  - Male
MH  - Polybrominated Biphenyls/analysis/*pharmacokinetics
MH  - Tissue Distribution
MH  - Toxaphene/analysis/*pharmacokinetics
EDAT- 2005/03/11 09:00
MHDA- 2005/07/01 09:00
CRDT- 2005/03/11 09:00
PHST- 2005/03/11 09:00 [pubmed]
PHST- 2005/07/01 09:00 [medline]
PHST- 2005/03/11 09:00 [entrez]
AID - 10.1021/es0487675 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2005 Feb 1;39(3):692-8. doi: 10.1021/es0487675.