Asked by Daniel
State the source of Carbon IV Oxide in aquatic ecosystems
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Carbon IV Oxide (CO2) in aquatic ecosystems comes from several sources:
- Atmospheric exchange — CO2 diffuses across the air–water interface (Henry’s law).
- Respiration — respiration by fish, zooplankton, plants and especially microbes produces CO2.
- Decomposition — microbial breakdown of organic matter (detritus) releases CO2.
- River and groundwater inputs — rivers and groundwater deliver dissolved inorganic carbon (from soil respiration and carbonate weathering) into lakes and oceans.
- Upwelling and mixing — deep waters rich in CO2 are brought to the surface by upwelling or vertical mixing.
- Geologic/thermal sources — hydrothermal vents, volcanic seeps and sediment diagenesis can supply CO2.
- Anthropogenic inputs — increased atmospheric CO2 from fossil-fuel emissions dissolves into surface waters.
(Photosynthesis by aquatic plants and algae consumes CO2 and is thus a major sink.)
- Atmospheric exchange — CO2 diffuses across the air–water interface (Henry’s law).
- Respiration — respiration by fish, zooplankton, plants and especially microbes produces CO2.
- Decomposition — microbial breakdown of organic matter (detritus) releases CO2.
- River and groundwater inputs — rivers and groundwater deliver dissolved inorganic carbon (from soil respiration and carbonate weathering) into lakes and oceans.
- Upwelling and mixing — deep waters rich in CO2 are brought to the surface by upwelling or vertical mixing.
- Geologic/thermal sources — hydrothermal vents, volcanic seeps and sediment diagenesis can supply CO2.
- Anthropogenic inputs — increased atmospheric CO2 from fossil-fuel emissions dissolves into surface waters.
(Photosynthesis by aquatic plants and algae consumes CO2 and is thus a major sink.)
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