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Trophic fractionation of carbon and nitrogen stable isotopes in Chironomus riparius reared on food of aquatic and terrestrial origin
Summary 1. Trophic fractionation was studied in short-term laboratory feeding experiments with larvae of the deposit-feeding midge Chironomus riparius. Larvae were fed food of terrestrial (oats,… Expand
Fatty Acid Ratios in Freshwater Fish, Zooplankton and Zoobenthos – Are There Specific Optima?
Two groups of polyunsaturated fatty acids (PUFA), termed omega-3 and omega-6 in food (or here as n-3 and n-6 PUFA, respectively), are essential for all vertebrates and probably also for nearly all… Expand
Effects of pesticides on community composition and activity of sediment microbes--responses at various levels of microbial community organization.
- A. Widenfalk, S. Bertilsson, I. Sundh, W. Goedkoop
- Biology, Medicine
- Environmental pollution
- 1 April 2008
A freshwater sediment was exposed to the pesticides captan, glyphosate, isoproturon, and pirimicarb at environmentally relevant and high concentrations. Effects on sediment microorganisms were… Expand
Fatty acids in profundal benthic invertebrates and their major food resources in Lake Erken, Sweden: seasonal variation and trophic indications.
Fatty acid (FA) concentrations and their seasonal variations were quantified for profundal benthic invertebrates, surficial sediment, and sedimenting matter from Lake Erken, Sweden. Food quality for… Expand
Seasonal variations in food quality for pelagic and benthic invertebrates in Lake Erken - the role of fatty acids
1. Plankton net samples and sedimenting matter in traps from mesotrophic Lake Erken, Sweden, were analysed for carbon (C), nitrogen (N) phosphorus (P), total lipids and fatty acid (FA) content to… Expand
Fatty acid composition of consumers in boreal lakes – variation across species, space and time
Summary 1. Fatty acids (FAs) have been widely applied as trophic biomarkers in aquatic food web studies. However, current knowledge of inter- and intraspecific variation in consumer FA… Expand
Spatial scale and ecological relationships between the macroinvertebrate communities of stony habitats of streams and lakes
Summary 1. Comparative studies of distinct, but not ecologically isolated, systems such as lakes and streams may improve our understanding of the importance of ecological linkages in aquatic… Expand
Evaluation of pesticide monitoring strategies in agricultural streams based on the toxic-unit concept--experiences from long-term measurements.
- M. Bundschuh, W. Goedkoop, J. Kreuger
- Environmental Science, Medicine
- The Science of the total environment
- 15 June 2014
The European Water Framework Directive requires surface water bodies to have a good chemical and ecological status. Although relatively few pesticides are included in the list of priority pollutants,… Expand
Linkages between Aquatic Sediment Biota and Life Above Sediments as Potential Drivers of Biodiversity and Ecological Processes
A deal of attention has been given to declining species diversity in terrestrial systems, and certainly the rate of species loss in tropical forests is staggering. Recently, increasing attention has… Expand
Global Change and the Biodiversity of Freshwater Ecosystems: Impacts on Linkages between Above-Sediment and Sediment Biota
disturbances varying in strength, frequency, predictability, duration, and spatial scale. Such disturbances can deplete the biota, disrupt ecological processes, and redistribute resources (Giller… Expand