Assessment of polychlorinated biphenyls, organochlorine pesticides, and polybrominated diphenyl ethers in the blood of humboldt penguins (Spheniscus humboldti) from the Punta San Juan Marine Protected Area, Peru

Michael J. Adkesson, Jeffrey M. Levengood, John W Scott, David J. Schaeffer, Jennifer N Langan, Susana Cárdenas-Alayza, Santiago De La Puente, Patricia Majluf, Sandra Yi

Research output: Contribution to journalArticle

Abstract

Persistent organic pollutants were assessed in Humboldt Penguins (Spheniscus humboldti) from the Punta San Juan Marine Protected Area, Peru, in the austral winter of 2009. Plasma samples from 29 penguins were evaluated for 31 polychlorinated biphenyl (PCB) congeners and 11 organochlorine pesticides (OCPs) by using gas chromatography coupled to an ion trap mass spectrometer and for 15 polybrominated diphenyl ether (PBDE) congeners by using gas chromatography coupled with high-resolution mass spectrometry. The detection rate for PCBs in the samples was 69%, with congeners 105, 118, 180, and 153 most commonly detected. The maximum ∑PCB concentration was 25 ng/g. The detection rate for DDT, DDD, and/or DDE was higher than for other OCP residues (90%; maximum concentration=10 ng/g). The detection rate for PBDEs was 86%, but most concentrations were low (maximum ∑PBDE concentration=3.81 ng/g). This crucial breeding population of S. humboldti was not exposed to contaminants at levels detrimental to health and reproductive success; however, the identified concentrations of legacy and recently emerged toxicants underscore the need for temporal monitoring and diligence to protect this endangered species in the face of regional human population and industrial growth. These results also provide key reference values for spatial comparisons throughout the range of this species.

Original languageEnglish (US)
Pages (from-to)304-314
Number of pages11
JournalJournal of Wildlife Diseases
Volume54
Issue number2
DOIs
StatePublished - Apr 2018

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polybrominated diphenyl ethers
Spheniscus
organochlorine pesticides
PBDE
polychlorinated biphenyls
penguins
Peru
protected area
PCB
conservation areas
blood
gas chromatography
DDD (pesticide)
persistent organic pollutants
DDE (pesticide)
DDD
pesticide residue
DDT (pesticide)
pesticide residues
DDE

Keywords

  • Bioaccumulation
  • DDT
  • Environmental toxicants
  • Organochlorine pesticides
  • Polybrominated diphenyl ethers
  • Polychlorinated biphenyls

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

Assessment of polychlorinated biphenyls, organochlorine pesticides, and polybrominated diphenyl ethers in the blood of humboldt penguins (Spheniscus humboldti) from the Punta San Juan Marine Protected Area, Peru. / Adkesson, Michael J.; Levengood, Jeffrey M.; Scott, John W; Schaeffer, David J.; Langan, Jennifer N; Cárdenas-Alayza, Susana; De La Puente, Santiago; Majluf, Patricia; Yi, Sandra.

In: Journal of Wildlife Diseases, Vol. 54, No. 2, 04.2018, p. 304-314.

Research output: Contribution to journalArticle

Adkesson, Michael J. ; Levengood, Jeffrey M. ; Scott, John W ; Schaeffer, David J. ; Langan, Jennifer N ; Cárdenas-Alayza, Susana ; De La Puente, Santiago ; Majluf, Patricia ; Yi, Sandra. / Assessment of polychlorinated biphenyls, organochlorine pesticides, and polybrominated diphenyl ethers in the blood of humboldt penguins (Spheniscus humboldti) from the Punta San Juan Marine Protected Area, Peru. In: Journal of Wildlife Diseases. 2018 ; Vol. 54, No. 2. pp. 304-314.
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