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Statements

Subject Item
dbr:Meromictic_lake
dbo:wikiPageWikiLink
dbr:Baltic_Sea_hypoxia
Subject Item
dbr:Baltic_Sea_hypoxia
rdfs:label
Baltic Sea hypoxia
rdfs:comment
Baltic Sea hypoxia refers to low levels of oxygen in bottom waters, also known as hypoxia, occurring regularly in the Baltic Sea. As of 2009 the total area of bottom covered with hypoxic waters with oxygen concentrations less than 2 mg/L in the Baltic Sea has averaged 49,000 km2 over the last 40 years. The ultimate cause of hypoxia is excess nutrient loading from human activities causing algal blooms. The blooms sink to the bottom and use oxygen to decompose at a rate faster than it can be added back into the system through the physical processes of mixing. The lack of oxygen (anoxia) kills bottom-living organisms and creates dead zones.
foaf:depiction
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dbc:Baltic_Sea dbc:Algal_blooms
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dbo:wikiPageRevisionID
1117704008
dbo:wikiPageWikiLink
dbr:Eutrophication dbc:Baltic_Sea dbr:Littorina_Sea dbr:Nitrogen dbr:North_Sea dbr:Cod dbr:Oxygen dbr:Nutrient dbr:Hypoxia_(environmental) dbr:Baltic_Sea dbr:HELCOM dbr:Dead_zone_(ecology) dbr:Brackish_water dbr:Algal_bloom dbr:Mastogloia_Sea dbr:Anoxic_waters n19:Baltic_blooms_ESA21514635.jpeg dbr:Cyanobacteria dbr:Phosphorus dbr:Before_Present dbc:Algal_blooms dbr:Lamination_(geology)
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dbo:thumbnail
n11:Baltic_blooms_ESA21514635.jpeg?width=300
dbo:abstract
Baltic Sea hypoxia refers to low levels of oxygen in bottom waters, also known as hypoxia, occurring regularly in the Baltic Sea. As of 2009 the total area of bottom covered with hypoxic waters with oxygen concentrations less than 2 mg/L in the Baltic Sea has averaged 49,000 km2 over the last 40 years. The ultimate cause of hypoxia is excess nutrient loading from human activities causing algal blooms. The blooms sink to the bottom and use oxygen to decompose at a rate faster than it can be added back into the system through the physical processes of mixing. The lack of oxygen (anoxia) kills bottom-living organisms and creates dead zones.
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Subject Item
dbr:Eutrophication
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dbr:Baltic_Sea_hypoxia
Subject Item
wikipedia-en:Baltic_Sea_hypoxia
foaf:primaryTopic
dbr:Baltic_Sea_hypoxia