PUBLICATION

An evaluation of background levels and sources of polycyclic aromatic hydrocarbons in naturally spawned embryos of Pacific herring (Clupea pallasii) from Puget Sound, Washington, USA

Authors
West, J.E., O'Neill, S.M., Ylitalo, G.M., Incardona, J.P., Doty, D.C., Dutch, M.E.
ID
ZDB-PUB-140903-4
Date
2014
Source
The Science of the total environment   499C: 114-124 (Journal)
Registered Authors
Incardona, John P.
Keywords
Contaminants, Embryos, Herring, Maternal transfer, PAHs, Puget Sound
MeSH Terms
  • Animals
  • Ecosystem
  • Embryo, Nonmammalian/metabolism*
  • Environmental Monitoring*
  • Fishes/metabolism*
  • Polycyclic Aromatic Hydrocarbons/metabolism*
  • Polycyclic Aromatic Hydrocarbons/standards
  • Washington
  • Water Pollutants, Chemical/metabolism*
  • Water Pollutants, Chemical/standards
PubMed
25181043 Full text @ Sci. Total Environ.
Abstract
Pacific herring embryos spawned in nearshore habitats may be exposed to toxic contaminants as they develop, from exogenous sources in spawning habitats and from maternal transfer. Determining baseline concentrations of these toxic contaminants is important for evaluating the health of this species, especially during this sensitive life stage. In this study we compared concentrations of polycyclic aromatic hydrocarbons, or PAHs, in naturally spawned herring embryos from five spawning areas across Puget Sound. The summed values of 31 PAH analytes (Σ31PAH) in early- to late-stage development embryos ranged from 1.1 to 140ng/g, wet weight. Σ31PAH concentrations increased with development time in embryos from one spawning area where the greatest concentrations were observed, and the relative abundance of PAH chemicals in late-stage embryos was similar to those in nearby sediments, suggesting accumulation from local environmental sources. PAHs in both sediments and late-stage embryos appeared to exhibit a pyrogenic pattern. Although maternal transfer of PAHs appeared to be a negligible source to embryos in spawning areas with the greatest embryo PAH concentrations, maternal transfer may have been the dominant source in embryos from spawning areas where the lowest levels of embryo-PAHs occurred. Chronic embryo mortality has been reported in spawning habitats where we observed the greatest concentration of PAHs in embryos, and necrotic tissue in herring embryos from one such location was similar in description to phototoxic PAH necrosis reported elsewhere for embryonic zebrafish.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping