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Dead zone (ecology)

Dead zones are hypoxic (low-oxygen) areas in the world's oceans and large lakes. Hypoxia occurs when dissolved oxygen (DO) concentration falls to or below 2 mg of O2/liter. When a body of water experiences hypoxic conditions, aquatic flora and fauna begin to change behavior in order to reach sections of water with higher oxygen levels. Once DO declines…

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Energy Independence and Security Act of 2007

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Dead zone (ecology)

Nodes132
Edges131
Triples14
Avg. degree1.98
Density0.015152
Components1

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Important terminology

dead water hypoxic zone zones hypoxia oxygen nitrogen seagrass gulf conditions mexico eutrophication river sea bay area runoff phosphorus marine

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
nitrateinstance ofresulting in an increased abundance of anaerobic organisms as aerobic microbes decrease in number and switch energy sources for oxidation0.80text
sulfateinstance ofresulting in an increased abundance of anaerobic organisms as aerobic microbes decrease in number and switch energy sources for oxidation0.80text
or iron reductioninstance ofresulting in an increased abundance of anaerobic organisms as aerobic microbes decrease in number and switch energy sources for oxidation0.80text
oysters both lead to losses in revenueinstance ofIndirect factors such as increased success by invasive species and increased pandemic intensity in stressed species0.80text
ecological stability in affected regions.Coral reefsThere has been a severe increase in mass mortality events associated with low oxygen causing mass hypoxia with the majority having been in the last 2 decadesinstance ofIndirect factors such as increased success by invasive species and increased pandemic intensity in stressed species0.80text
ecological stability in affected regionsinstance ofIndirect factors such as increased success by invasive species and increased pandemic intensity in stressed species0.80text
urbaninstance ofThe superabundance of phosphorus in the lake has been linked to nonpoint source pollution0.80text
agricultural runoff as well as point source pollution that includes sewageinstance ofThe superabundance of phosphorus in the lake has been linked to nonpoint source pollution0.80text
wastewater treatment plantsinstance ofThe superabundance of phosphorus in the lake has been linked to nonpoint source pollution0.80text
crabsinstance ofThe dead zone has resulted in sea organisms0.80text
fish relocatinginstance ofThe dead zone has resulted in sea organisms0.80text
an interference with commercial fishinginstance ofThe dead zone has resulted in sea organisms0.80text

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