Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 499227
Title Dynamics and recovery of a sediment exposed Chironomus riparius population: A modelling approach
Author(s) Diepens, N.J.; Beltman, W.H.J.; Koelmans, A.A.; Brink, P.J. van den; Baveco, Hans
Source Environmental Pollution 213 (2016). - ISSN 0269-7491 - p. 741 - 750.
Department(s) Aquatic Ecology and Water Quality Management
Alterra - Environmental risk assessment
IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract Models can be used to assess long-term risks of sediment-bound contaminants at the population level. However, these models usually lack the coupling between chemical fate in the sediment, toxicokinetic-toxicodynamic processes in individuals and propagation of individual-level effects to the population. We developed a population model that includes all these processes, and used it to assess the importance of chemical uptake routes on a Chironomus riparius population after pulsed exposure to the pesticide chlorpyrifos. We show that particle ingestion is an important additional exposure pathway affecting C. riparius population dynamics and recovery. Models ignoring particle ingestion underestimate the impact and the required recovery times, which implies that they underestimate risks of sediment-bound chemicals. Additional scenario studies showed the importance of selecting the biologically relevant sediment layer and showed population effects in the long term.
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