PMID- 16110985
OWN - NLM
STAT- MEDLINE
DCOM- 20051202
LR  - 20190917
IS  - 0730-7268 (Print)
IS  - 0730-7268 (Linking)
VI  - 24
IP  - 5
DP  - 2005 May
TI  - Factors influencing persistent organic pollutant concentrations in the Atlantic 
      white-sided dolphin (Lagenorhynchus acutus).
PG  - 1079-87
AB  - Assessing the trends of persistent organic pollutants (POPs) in cetaceans is 
      difficult because of age and gender influences on accumulation. Persistent 
      organic pollutants bioaccumulate and are poorly metabolized; hence, 
      concentrations may increase with age in males while females reduce their POP 
      burden through parturition and lactation. Age and gender effects on contaminant 
      concentrations are species specific because of life history and reproductive 
      strategies. These influences must be understood in order to elucidate and assess 
      lifetime POP exposure. The objectives of this study were to determine baseline 
      POP concentrations in blubber samples from the Atlantic white-sided dolphin 
      (Lagenorhynchus acutus) and to investigate life history and other influences, 
      such as metabolism, on these concentrations. Forty-seven L. acutus blubber 
      samples collected from mass stranding events in Massachusetts, USA (1993-2000), 
      and archived in the National Marine Mammal Tissue Bank at the National Institute 
      of Standards and Technology (Gaithersburg, MD, USA) were analyzed for 55 
      polychlorinated biphenyl congeners (PCB; 55 congeners), five polybrominated 
      diphenyl ether (PBDE) congeners, and organochlorine pesticides (toxaphene, DDT 
      and metabolites, mirex, dieldrin, chlordanes, hexachlorocyclohexanes, 
      hexachlorobenzene, and endosulfans) by gas chromatography/mass spectrometry 
      (GC-MS). Ages for 19 animals were determined from growth layer groups on 
      decalcified, stained thin tooth sections. Total PCBs (sigmaPCB; sum of 55 
      congeners) were the contaminants present in the highest concentrations in all age 
      classes (0.5-63 microg/g wet mass) followed by sum of DDTs (0.50-43 microg/g wet 
      mass), toxaphene (0.055-31 microg/g wet mass), chlordanes (0.30-24 microg/g wet 
      mass), and PBDEs (0.12-4.0 microg/g wet mass). Body length had a greater 
      statistical influence than age on contaminant burdens in L. acutus. Contaminant 
      burdens decreased with length in both male and female L. acutus, suggesting 
      metabolic elimination and/or growth dilution in males and off-loading via 
      lactation in females.
FAU - Tuerk, Karen J S
AU  - Tuerk KJ
AD  - Department of Environmental Health and Sciences, University of South Carolina, 
      Columbia, South Carolina 29205, USA.
FAU - Kucklick, John R
AU  - Kucklick JR
FAU - McFee, Wayne E
AU  - McFee WE
FAU - Pugh, Rebecca S
AU  - Pugh RS
FAU - Becker, Paul R
AU  - Becker PR
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Environ Toxicol Chem
JT  - Environmental toxicology and chemistry
JID - 8308958
RN  - 0 (Environmental Pollutants)
RN  - 0 (Polybrominated Biphenyls)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Adipose Tissue/chemistry
MH  - Animals
MH  - Atlantic Ocean
MH  - *Dolphins
MH  - Environmental Monitoring
MH  - Environmental Pollutants/*analysis/toxicity
MH  - Female
MH  - Male
MH  - Massachusetts
MH  - Polybrominated Biphenyls/*analysis
MH  - Polychlorinated Biphenyls/*analysis
MH  - Tissue Distribution
EDAT- 2005/08/23 09:00
MHDA- 2005/12/13 09:00
CRDT- 2005/08/23 09:00
PHST- 2005/08/23 09:00 [pubmed]
PHST- 2005/12/13 09:00 [medline]
PHST- 2005/08/23 09:00 [entrez]
AID - 10.1897/04-120r.1 [doi]
PST - ppublish
SO  - Environ Toxicol Chem. 2005 May;24(5):1079-87. doi: 10.1897/04-120r.1.