Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1186/s12302-022-00644-w
Lizenz creative commons licence
Titel (primär) Exploring the partitioning of hydrophobic organic compounds between water, suspended particulate matter and diverse fish species in a German river ecosystem
Autor Wernicke, T.; Rojo-Nieto, E.; Paschke, A.; Nogueira Tavares, C.; Brauns, M.; Jahnke, A. ORCID logo
Journal / Serie Environmental Sciences Europe
Erscheinungsjahr 2022
Department OEC; FLOEK; NSF
Band/Volume 34
Seite von art. 66
Sprache englisch
Topic T5 Future Landscapes
T9 Healthy Planet
Keywords Suspended particulate matter (SPM); Freshwater; Passive sampling devices (PSDs); Bioaccumulation; Hydrophobic organic compounds (HOCs); Fish; Proxy; Monitoring
Abstract Background
Bioaccumulation of hydrophobic organic compounds (HOCs) along freshwater food chains is a major environmental concern as top predators in food webs are relevant for human consumption. To characterize and manage the associated risks, considerable numbers of organisms are sampled regularly for monitoring purposes. However, ethical and financial issues call for an alternative, more generic and more robust approach for assessing the internal exposure of fish that circumvents large variability in biota sampling due to interindividual differences. Passive sampling devices (PSDs) offer a fugacity-based approach for pollutant enrichment from different abiotic environmental compartments with a subsequent estimation of bioaccumulation in fish which we explored and compared to HOC concentrations in fish as determined using traditional approaches.
In this study, concentrations in silicone-based PSDs applied to the water phase and suspended particulate matter (SPM) of a river polluted with HOCs were used to estimate the concentration in model lipids at thermodynamic equilibrium with either environmental compartment. For comparison, muscle tissue of seven fish species (trophic level 1.8 to 2.8) was extracted using traditional exhaustive solvent extraction, and the lipid-normalized concentrations of HOCs were determined. The PSD-based data from SPM proved to be a more conservative estimator for HOCs accumulated in fish than those from water. Body length of the fish was found to be more suitable to describe increasing accumulation of HOCs than their trophic level as derived from stable isotope analysis and might offer a suitable alternative for future studies.
By combining fugacity-based sampling in the abiotic environment, translation into corresponding concentrations in model lipids and body length as an indicator for increasing bioaccumulation in fish, we present a suggestion for a robust approach that may be a meaningful addition to conventional monitoring methods. This approach potentially increases the efficiency of existing monitoring programs without the need to regularly sacrifice vertebrate species.
dauerhafte UFZ-Verlinkung
Wernicke, T., Rojo-Nieto, E., Paschke, A., Nogueira Tavares, C., Brauns, M., Jahnke, A. (2022):
Exploring the partitioning of hydrophobic organic compounds between water, suspended particulate matter and diverse fish species in a German river ecosystem
Environ. Sci. Eur. 34 , art. 66