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 328516
Title Trace metal availability and effects on benthic community structure in floodplain lakes
Author(s) Griethuysen, C. van; Baren, J. van; Peeters, E.T.H.M.; Koelmans, A.A.
Source Environmental Toxicology and Chemistry 23 (2004)3. - ISSN 0730-7268 - p. 668 - 681.
Department(s) Aquatic Ecology and Water Quality Management
Publication type Refereed Article in a scientific journal
Publication year 2004
Keyword(s) meren - stroomvlakten - sporenelementen - waterorganismen - waterverontreiniging - rijn - waal - ijssel - aquatic organisms - water pollution - lakes - floodplains - trace elements - river rhine - river waal - river ijssel - acid-volatile sulfide - simultaneously extracted metals - macroinvertebrate community - contaminated sediments - cadmium accumulation - in-situ - invertebrates - toxicity - avs - bioavailability
Categories Soil Pollution
Abstract Effects of contaminants on communities are difficult to assess and poorly understood. We analyzed in situ effects of trace metals and common environmental variables on benthic macroinvertebrate communities in floodplain lakes. Alternative measures of trace metal availability were evaluated, including total metals, metals normalized on organic carbon (OC) or clay, simultaneously extracted metals (SEM), combinations of SEM and acid-volatile sulfide (AVS), and metals accumulated by detritivore invertebrates (Oligochaeta). Accumulated metal concentrations correlated positively with sediment trace metals and negatively with surface water dissolved OC. Sixty-eight percent of the variation in benthic community composition was explained by a combination of 11 environmental variables, including sediment, water, and morphological characteristics with trace metals. Metals explained 2 to 6% of the community composition when SEM — AVS or individual SEM concentrations were regarded. In contrast, total, normalized, and accumulated metals were not significantly linked to community composition. We conclude that examination of SEM or SEM — AVS concentrations is useful for risk assessment of trace metals on the community level.
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