Sökning: "Aquatic ecosystems"
Visar resultat 1 - 5 av 139 uppsatser innehållade orden Aquatic ecosystems.
1. Headfirst into shallow water - Wetland restoration and its contribution to the Habitats Directive
Master-uppsats, Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Located in the borderland between aquatic and terrestrial environments, the wetlands cover a wide spectrum of habitats and enable living standards for a great variety of organisms. Although important habitats, a great extent of the original wetlands have disappeared in Europe and Sweden due to anthropogenic disturbances. LÄS MER
2. The importance of bacterial functional diversity for mixotrophic flagellate function
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : This project examined the role of functional diversity of bacterial prey organisms on a mixotrophic flagellate’s function. The concept of functional diversity and its role for ecosystem functioning is a subject of ongoing research and controversially discussed. Mixotrophy is the combination of different modes of nutrition in one organism. LÄS MER
3. Potential migration routes for the alien species, pink salmon (Oncorhynchus gorbuscha) : investigating access in west and south coast rivers of Sweden
Kandidat-uppsats, SLU/Dept. Of Aquatic ResourcesSammanfattning : Invasive alien species are one of the main drivers of ecosystem change globally, presenting challenges to biodiversity that take many forms Pink salmon, Oncorhynchus gorbuscha, has recently been observed on the Swedish west coast where its presence is the result of secondary spreading from populations introduced to the White and Barents Seas in northwestern Russia. In Sweden, O. LÄS MER
4. En jämförande studie av vattenfiltreringsegenskaper mellan musslor inom olika habitat
Kandidat-uppsats, Karlstads universitetSammanfattning : Denna studie handlar om den vanliga sötvattensmusselarten Unio tumidus (U. tumidus), som har en viktig roll i vattenrening genom att filtrera organiskt material. LÄS MER
5. Ecological impacts of dam removal in Swedish inland waters : Effects on water chemistry and fish demography
Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Sammanfattning : Dams play an important role in our society, but their negative impacts on aquatic ecosystems have led to a need for conservation efforts to mitigate the negative effects. In some instances, dam removal has been suggested to be the most economically and ecologically beneficial restoration method to improve longitudinal connectivity. LÄS MER
