Essays about: "anoxia"

Showing result 11 - 13 of 13 essays containing the word anoxia.

  1. 11. Impact of Using Macroalgae from the Baltic Sea in Biogas Production : A Review with Special Emphasis on Heavy Metals

    University essay from Linnéuniversitetet/Institutionen för naturvetenskap, NV

    Author : Kristofer Bergström; [2012]
    Keywords : biogas; macroalgae; heavymetals; Trelleborg;

    Abstract : A consequence of eutrophication in the Baltic Sea is growth of algae that accumulates in the coastal areas and beaches. Dense algal mats may cause anoxia or hypoxia and greatly reduce the recreational value of the area. Algae also functions as hyper accumulators of heavy metals and their metal levels may become toxic to higher trophic levels. READ MORE

  3. 12. Dynamics of internal nutrient sources in the Baltic Sea - A comparative modelling study of the Gulf of Finland.

    University essay from KTH/Vattenvårdsteknik

    Author : Benoît Dessirier; Safeyeh Soltani; [2011]
    Keywords : Eutrophication models; Nutrients; Biogeochemical cycles; Hydrodynamics; Gulf of Finland; Baltic Sea;

    Abstract : For decades the Baltic Sea has been subject to eutrophication due to heavy anthropogenic nutrient loads on the aquatic ecosystem. Quantitative projections of its effects require an understanding of its driving mechanisms, i.e. READ MORE

  4. 13. The effects of water chemistry on fish species distribution : a comparison between isolated and connected lakes in northern Sweden

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Johanna Öhman; [2004]
    Keywords : fish; water chemistry; isolation; anoxia; dissolved oxygen; DO; acidity; pH; pike; perch; roach; crucian carp; stickleback; bream; bleak; ide; ruffe; Västerbotten; northern Sweden; ice; winter; lake;

    Abstract : The correlation between water chemistry and fish species distribution was examined in forty small, coastal lakes in northern Sweden. Lakes were fished in summer and water chemistry sampled mainly in late winter. Twenty out of the forty lakes were isolated from other water bodies and twenty had a direct connection to the sea. READ MORE