Your browser doesn't support javascript.
loading
Examination of contaminant exposure and reproduction of ospreys (Pandion haliaetus) nesting in Delaware Bay and River in 2015.
Rattner, Barnett A; Lazarus, Rebecca S; Bean, Thomas G; McGowan, Peter C; Callahan, Carl R; Erickson, Richard A; Hale, Robert C.
Afiliação
  • Rattner BA; U.S. Geological Survey, Patuxent Wildlife Research Center, Beltsville, MD, USA. Electronic address: brattner@usgs.gov.
  • Lazarus RS; U.S. Geological Survey, Patuxent Wildlife Research Center, Beltsville, MD, USA.
  • Bean TG; Department of Environmental Science and Technology, University of Maryland, College Park, MD, USA.
  • McGowan PC; Chesapeake Bay Field Office, U.S. Fish and Wildlife Service, Annapolis, MD, USA.
  • Callahan CR; Chesapeake Bay Field Office, U.S. Fish and Wildlife Service, Annapolis, MD, USA.
  • Erickson RA; U.S. Geological Survey, Upper Midwest Environmental Science Center, La Crosse, WI, USA.
  • Hale RC; Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, USA.
Sci Total Environ ; 639: 596-607, 2018 Oct 15.
Article em En | MEDLINE | ID: mdl-29800853
A study of ospreys (Pandion haliaetus) nesting in the coastal Inland Bays of Delaware, and the Delaware Bay and Delaware River in 2015 examined spatial and temporal trends in contaminant exposure, food web transfer and reproduction. Concentrations of organochlorine pesticides and metabolites, polychlorinated biphenyls (PCBs), coplanar PCB toxic equivalents, polybrominated diphenyl ethers (PBDEs) and other flame retardants in sample eggs were generally greatest in the Delaware River. Concentrations of legacy contaminants in 2015 Delaware Bay eggs were lower than values observed in the 1970s through early 2000s. Several alternative brominated flame retardants were rarely detected, with only TBPH [bis(2-ethylhexyl)-tetrabromophthalate)] present in 5 of 27 samples at <5 ng/g wet weight. No relation was found between p,p'-DDE, total PCBs or total PBDEs in eggs with egg hatching, eggs lost from nests, nestling loss, fledging and nest success. Osprey eggshell thickness recovered to pre-DDT era values, and productivity was adequate to sustain a stable population. Prey fish contaminant concentrations were generally less than those in osprey eggs, with detection frequencies and concentrations greatest in white perch (Morone americana) from Delaware River compared to the Bay. Biomagnification factors from fish to eggs for p,p'-DDE and total PCBs were generally similar to findings from several Chesapeake Bay tributaries. Overall, findings suggest that there have been improvements in Delaware Estuary waterbird habitat compared to the second half of the 20th century. This trend is in part associated with mitigation of some anthropogenic contaminant threats.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Monitoramento Ambiental / Falconiformes Limite: Animals País/Região como assunto: America do norte Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Monitoramento Ambiental / Falconiformes Limite: Animals País/Região como assunto: America do norte Idioma: En Ano de publicação: 2018 Tipo de documento: Article