Sökning: "brackish"
Visar resultat 11 - 15 av 89 avhandlingar innehållade ordet brackish.
11. Mercury species transformations in marine and biological systems studied by isotope dilution mass spectrometry and stable isotope tracers
Sammanfattning : This thesis focuses on the implementation of species-specific isotope dilution (SSID) methodology and stable isotope tracers to determine mercury species occurrence and transformation processes in-situ and during sample treatment. Isotope enriched tracers of methyl-, ethyl- and inorganic mercury were synthesised and applied in different combinations to marine and biological samples. LÄS MER
12. Trace metal speciation in fresh and brackish waters using ultrafiltration, DGT and transplanted aquatic moss
Sammanfattning : Distribution, mobility, and toxicity of metals in natural waters are strongly related to their aqueous speciation. To understand the behaviour of an aqueous element and the transformation between chemical species, there is a need for reliable methods that enable measurements of specific fractions of metals. LÄS MER
13. Experimental investigations of limiting nutrients for phytoplankton production in the brackish-water Öresund, SW Sweden
Sammanfattning : .... LÄS MER
14. From geography to genes: evolutionary perspectives on salinity tolerance in the brackish water barnacle Balanus improvisus
Sammanfattning : How species respond to changes in their environment is a fundamental question in biology. This has become an increasingly important issue as anthropogenic effects of climate change and biological invasions have major impacts on marine ecosystems worldwide. LÄS MER
15. Hazard Identification of Anti-fouling Paints and Contaminated Sediments by the Use of Biological Tests in Brackish Water
Sammanfattning : Ecotoxicological test methods are important tools in environmental risk assessment to investigate possible adverse effects that chemical substances may cause to aquatic ecosystems. The main aim of this doctoral thesis was to identify potential toxicity (hazard) of anti-fouling compounds and paints as well as contaminated sediments. LÄS MER