Evaluation of spatial and temporal models to assess the bioaccumulation of trace metals in marine invertebrates

This thesis aims at providing concepts and information necessary for the assessment of data from monitoring programmes. Therefore, the applicability of further species for biomonitoring was investigated, e.g. of the cockle Cerastoderma edule and the brown shrimp Crangon crangon as important representatives of the benthic communities in the Wadden Sea in the Wadden Sea and the southern North Sea with substantial economic impact. For both species the problem of spatial dependence was addressed on two different scales. In either case the goal of the studies was to quantify the range of spatial dependence and to obtain information from which distance on data of samples will be stochastically independent. In addition, relationships between metal concentrations in organisms and other variables were analysed. Additionally, bioaccumulation of the dissolved heavy metals Cd, Cu, Pb and Zn was investigated for C. crangon in laboratory experiments and analysed by means of two-compartment models. The model parameters obtained were verified with independent experimental data and interpreted in terms of the accumulation strategies. In a final step the sensitivity of C. crangon for biomonitoring purposes was evaluated by means of model simulations.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Oldenburg

Year

2007

Author dc:creator

• Jung, Kristine Renate

• [Keine Schlagwörter von Autor/in vergeben.]

Repository record source_url

http://oops.uni-oldenburg.de/738

OAI identifier oai:identifier

oai:oops.uni-oldenburg.de:738