Organochlorine Contaminants in Blubber from Stranded Marine Mammals Collected from the Northern Oregon and Southern Washington Coasts: Implications for Re-introducing California Condors, Gymnogyps californianus, in Oregon
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Re-introduction of California Condors into Oregon is currently being considered, but there are concerns about the safety of potential food sources of this species. Condors are opportunistic feeders and a largely available food source for this species will be stranded marine mammal carcasses. We analyzed 37 blubber samples from 7 different marine mammal species collected from the Oregon and Southern Washington coasts for 18 organochlorine (OC) pesticides and 16 polychlorinated biphenyls (PCBs). Dichlorodiphenyldichloroethylene (DDE) was the most prevalent OC contaminant, making up more than 58 % of the total OC concentration measured. There were no significant differences in OC content between species or sexes.
KeywordsMarine mammals DDE PCBs
Funding for this research was provided by a Future of Wildlife grant, provided by Oregon Zoo, Portland, OR.
- Burnett LJ, Sorenson KJ, Brandt J, Sandhaus EA, Ciana D, Clark M, David C, Theule J, Kasielke S, Risebrough R (in press) Eggshell thinning and depressed hatching success of California Condors reintroduced to central California. CondorGoogle Scholar
- de Swart RL, Ross PS, Vos JG, Osterhaus ADME (1996) Impaired immunity in harbour seals (Phoca vitulina) exposed to bioaccumulated environmental contaminants: review of a long-term feeding study. Environ Health Perspect 104:823–828Google Scholar
- Feist GW, Webb MAH, Gundersen DT, Foster EP, Schreck CB, Maule AG, Fitzpatrick MS (2005) Evidence of detrimental effects of environmental contaminants on growth and reproductive physiology of white sturgeon in impounded areas of the columbia river. Environ Health Perspect 113:1675–1682CrossRefGoogle Scholar
- Finkelstein ME, Doak DF, George D, Burnett J, Brandt J, Church M, Grantham J, Smith DR (2012) Lead poisoning and the deceptive recovery of the critically endangered California condor. Proc Natl Acad of Sci USA (online early edition): 6Google Scholar
- Walters JR, Derrickson SR, Fry DM, Haig SM, Marzluff JM, Wunderle JM (2008) Status of the California condor and efforts to achieve its recovery. Joint initiative of the American ornithologists’ union and Audubon CaliforniaGoogle Scholar