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Multidecadal field data support intimate links between phytoplankton dynamics and PCB concentrations in marine sediments and biota

Gert Everaert (UGent) , Frederik De Laender (UGent) , Peter Goethals (UGent) and Colin Janssen (UGent)
(2015) ENVIRONMENTAL SCIENCE & TECHNOLOGY. 49(14). p.8704-8711
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Abstract
We analyzed three decades of field observations in the North Sea with additive models to infer spatiotemporal trends of chlorophyll a concentration, sediment organic carbon content, and polychlorinated biphenyls (PCBs) concentrations in mussels and sediments. By doing so, we separated long-term changes in PCB concentrations from seasonal variability. Using the inferred seasonal variability, we demonstrated that phytoplankton blooms in spring and autumn correspond to the annual maxima of the organic carbon content (r = 0.56; p = 0.004) and the PCB concentrations in sediments (r = 0.57; p = 0.004). Furthermore, we found a negative correlation between the PCB concentrations in sediments and in blue mussels (Mytilus edulis; r = −0.33, p = 0.012), which is probably related to the cleansing of the dissolved PCB phase driven by sinking organic matter during phytoplankton blooms and the filter-feeding behavior of the blue mussel. The present research demonstrates the role of seasonal phytoplankton dynamics in the environmental fate of PCBs at large spatiotemporal scales.
Keywords
NORTH-ATLANTIC OSCILLATION, PERSISTENT ORGANIC POLLUTANTS, POLYCHLORINATED-BIPHENYLS, TEMPORAL TRENDS, MYTILUS-EDULIS, CARBON FLUXES, ACCUMULATION, OCEAN, WATER, SEA

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MLA
Everaert, Gert et al. “Multidecadal Field Data Support Intimate Links Between Phytoplankton Dynamics and PCB Concentrations in Marine Sediments and Biota.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 49.14 (2015): 8704–8711. Print.
APA
Everaert, Gert, De Laender, F., Goethals, P., & Janssen, C. (2015). Multidecadal field data support intimate links between phytoplankton dynamics and PCB concentrations in marine sediments and biota. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 49(14), 8704–8711.
Chicago author-date
Everaert, Gert, Frederik De Laender, Peter Goethals, and Colin Janssen. 2015. “Multidecadal Field Data Support Intimate Links Between Phytoplankton Dynamics and PCB Concentrations in Marine Sediments and Biota.” Environmental Science & Technology 49 (14): 8704–8711.
Chicago author-date (all authors)
Everaert, Gert, Frederik De Laender, Peter Goethals, and Colin Janssen. 2015. “Multidecadal Field Data Support Intimate Links Between Phytoplankton Dynamics and PCB Concentrations in Marine Sediments and Biota.” Environmental Science & Technology 49 (14): 8704–8711.
Vancouver
1.
Everaert G, De Laender F, Goethals P, Janssen C. Multidecadal field data support intimate links between phytoplankton dynamics and PCB concentrations in marine sediments and biota. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 2015;49(14):8704–11.
IEEE
[1]
G. Everaert, F. De Laender, P. Goethals, and C. Janssen, “Multidecadal field data support intimate links between phytoplankton dynamics and PCB concentrations in marine sediments and biota,” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 49, no. 14, pp. 8704–8711, 2015.
@article{6887745,
  abstract     = {We analyzed three decades of field observations in the North Sea with additive models to infer spatiotemporal trends of chlorophyll a concentration, sediment organic carbon content, and polychlorinated biphenyls (PCBs) concentrations in mussels and sediments. By doing so, we separated long-term changes in PCB concentrations from seasonal variability. Using the inferred seasonal variability, we demonstrated that phytoplankton blooms in spring and autumn correspond to the annual maxima of the organic carbon content (r = 0.56; p = 0.004) and the PCB concentrations in sediments (r = 0.57; p = 0.004). Furthermore, we found a negative correlation between the PCB concentrations in sediments and in blue mussels (Mytilus edulis; r = −0.33, p = 0.012), which is probably related to the cleansing of the dissolved PCB phase driven by sinking organic matter during phytoplankton blooms and the filter-feeding behavior of the blue mussel. The present research demonstrates the role of seasonal phytoplankton dynamics in the environmental fate of PCBs at large spatiotemporal scales.},
  author       = {Everaert, Gert and De Laender, Frederik and Goethals, Peter and Janssen, Colin},
  issn         = {0013-936X},
  journal      = {ENVIRONMENTAL SCIENCE & TECHNOLOGY},
  keywords     = {NORTH-ATLANTIC OSCILLATION,PERSISTENT ORGANIC POLLUTANTS,POLYCHLORINATED-BIPHENYLS,TEMPORAL TRENDS,MYTILUS-EDULIS,CARBON FLUXES,ACCUMULATION,OCEAN,WATER,SEA},
  language     = {eng},
  number       = {14},
  pages        = {8704--8711},
  title        = {Multidecadal field data support intimate links between phytoplankton dynamics and PCB concentrations in marine sediments and biota},
  url          = {http://dx.doi.org/10.1021/acs.est.5b01159},
  volume       = {49},
  year         = {2015},
}

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