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Found 2 essays matching the above criteria.

1. 1. 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. 2. Rapid Changes in Salinity and Cyanobacterial Exposure Influence condition of Young of the Year (YOY) Perch (Perca fluviatilis) : A Field Study in the Curonian Lagoon(Lithuania)

   University essay from Institutionen för naturvetenskap, NV

   Author : Kristofer Bergström; [2010]
   Keywords : perch; cyanobacteria; curonian lagoon;

   Abstract : Two decades ago the recruitment of YOY perch (Perca fluviatilis) started to decline along the Swedish east cost of the Baltic Sea. Factors that influence recruitment are e.g. eutrophication that causes habitat losses and overfishing of cod (Gadus morhua) which causes cascading effects in the food web. READ MORE