10 Salinity and Carbon 8

10 Salinity and Carbon 8 - Mid-west flooding and its...

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CO 2 Water Acid CO 2 + H 2 O H 2 CO 3 H 2 CO 3 H + + HCO 3 - H + is acid Acids (H + ) are reactive and dissolve a number of substances Dissolution of Carbon Dioxide
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Copper and Silver Cleaning: CuO + 2HCl → CuCl 2 + H 2 O Ag 2 O + 2 HCl → 2 AgCl + H 2 O CaCO 3 + H + Ca 2+ + HCO 3 - Fe 2 O 3 + 6 H + 2Fe 3+ + 3H 2 O Fe 2 O 3 CaCO 3
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Invertebrate shells and skeletons largely CaCO 3 Corals, “lithic” plankton, clams, oysters
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http://www.npr.org/templates/story/story.php?storyId=17243164 CaCO 3 + H + Ca 2+ + HCO 3 - CO 2 Water H + Acidification of the oceans Inhibits the calcification and growth of invertebrates Analysis of coral cores shows a steady drop in calcification over the last 20 years pH change: 8.179 to 8.104
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Coral Reef Bleaching Corals live in very nutrient poor waters and have certain zones of tolerance to water temperature, salinity, UV radiation, opacity, and nutrient quantities.
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Anthropogenic Inputs
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Homework II Oceanic Dead Zones This is an excerpt from a news story from June 21 by the AP concerning recent
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Unformatted text preview: Mid-west flooding and its potential impact on the dead zone in the Gulf of Mexico. Flood, size of gulf dead zone linked Extra farm runoff in the Mississippi to increase area with no oxygen Associated Press June 21, 2008 WASHINGTON - Floodwaters loaded with farm runoff are heading down the Mississippi River, and scientists fear that the deluge will sharply increase the expected dead zone this summer in the Gulf of Mexico, covering an area the size of Maryland. The dead zone is a region of the gulf that becomes starved for oxygen during much of the summer and cannot support fish or other sea life. There are hundreds of dead zones around the world that wreak havoc on marine ecology and cut off vast areas for commercial fishing. The zone in the gulf is the largest in the Western Hemisphere....
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This note was uploaded on 02/10/2011 for the course SWS 2007 taught by Professor bonczek during the Fall '09 term at University of Florida.

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10 Salinity and Carbon 8 - Mid-west flooding and its...

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