Essays about: "freshwater eutrophication"

Showing result 21 - 25 of 25 essays containing the words freshwater eutrophication.

  1. 21. The effects of population growth on Ecosystem services in lake Ekoln : A multi-proxy data analysis of a lake core and historical records.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Douglas Kilpatrick; [2016]
    Keywords : Ecosystem services; Population growth; Species diversity; Water quality; Environmental reconstruction.;

    Abstract : Throughout human history man has utilized the environment to varying degrees, depending on technology and population. These ¨ecosystem services¨ have suffered sustained degradation over the centuries, resulting in large investments having to be made to prevent and reverse further changes to the environment. READ MORE

  3. 22. Frigörelse av fosfor från färskt, fryst och torkat växtmaterial : ett laboratorieförsök för att öka förståelsen för fosfordynamiken inom växtodlingen

    University essay from SLU/Dept. of Soil and Environment

    Author : Jon Wessling; [2015]
    Keywords : fosforförluster; fosforutlakning; frysning; tining; ytavrinning; freezing; losses; phosphorus; plant material; residue; thawing;

    Abstract : Phosphorus is the single most potent contributor to eutrophication of freshwater and has also been shown to contribute to the toxic algae blooms in the Baltic sea. The dynamics and paths of losses of phosphorus from arable lands are not fully understood. It is known that phosphorus can be lost directly from plant material to water. READ MORE

  4. 23. Host - parasite interactions: : the relationship between encystment load of the freshwater pearl mussel (Margaritifera margaritifera) and genetic diversity of its host (Salmo trutta)

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper

    Author : Helena Winser; [2015]
    Keywords : ;

    Abstract : The freshwater pearl mussel (FPM, Margaritifera margaritifera) is an endangered bivalve mollusc with an obligatory larval parasitic phase on brown trout (Salmo trutta). The FPM has declined throughout its entire range due to causes such as habitat degradation, eutrophication, acidification, changed hydrology and lack of host fish. READ MORE

  5. 24. Freshwater pearl mussel as indicators of Swedish streams - a comparison between freshwater pearl mussel and biological quality elements

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Kristin Forsell; [2014]
    Keywords : flodpärlmussla; biologiska kvalitetsfaktorer; freshwater pearl mussel; biological quality elements;

    Abstract : The freshwater pearl mussel (Margaritifera margaritifera) is a large freshwater mussel. Because of its sensitivity to human impact, such as eutrophication, acidification and alterations of hydromorphology, the species is considered as a robust indicator of stream water quality and biodiversity. READ MORE

  6. 25. Modeling of the Nitrogen Cyclein the Sediments of the Western Gotland Basin, Baltic Sea

    University essay from KTH/Industriell ekologi

    Author : Kamilia Muhanova; [2009]
    Keywords : eutrophication; the Baltic Sea; the Western Gotland Basin; environmental modeling; sediment; nitrogen cycle;

    Abstract : Modeling of the nitrogen cycling in the sediments of the Baltic Sea is the major objective of thepresent study. A model of the nitrogen cycling in the sediment of the Western Gotland Basinwas developed. READ MORE