!live-aquarium-plantsBUY the centuryMake sure at some point either on!live-aquarium-plantsBUY PLANTS HERE ocean absorbs 25 percent of the CO2 released into the atmosphere every year. The CO2 changes the chemistry of the water. Called OCEAN ACIDIFICATION and seaweeds are submerged aquatic vegetation (SAV)  Flowering vascular plants16 species are found in VAProvides habitat for other sea lifeProduces oxygen Protects shorelines from erosion- absorbs wave energy dioxide dissolves into the ocean- forms carbonic acidAverage pH over the past 300 million years- 8.2Now the pH level is about- 8.1DOESN’T SEEM LIKE A LOT BUT THAT IS A 25 PERCENT INCREASE IN ACIDITY IN THE PAST TWO CENTURIESOceans absorb ? of the CO2 emitted from humans per day (22 million tons)Projected that the pH levels will decrease another .5 units by the end of the centuryMake sure at some point either on the poster/presentation/background that it is stressed that this is a problem NOW and is not to be left for later generations. the water becomes more acidic, shells and exoskeletons on crustaceans can dissolveSeagrass density increases in response to lower pHHigh rates of photosynthesis buffer the the changes in ocean chemistry temperatures decreases the efficiency of photosynthesisAs sea levels rise, the depth of the habitat increases, reducing the amount of light able to reach the plants term OCEAN ACIDIFICATION was coined in 20031- carbon dioxide dissolves in the water 2- pH levels increase, making it more acidic 3- this binds up carbonate ions making them less abundant acidification- the ocean is becoming more acidicpH- potential hydrogenCO2- Carbon dioxideFormula for forming Carbonic Acid- H2O+CO2?H2CO3 found in salty shallow and brackish waters72 different speciesNOT SEAWEEDA monocotyledons (flowering plants with one embryonic leaf)Seaweeds- use diffusion to transport nutrients, holdfast, blades, algae / Seagrasses- vascular, plants, roots, leaves, flowerReproduces by two methods- asexual/ sexualSpecies divided into four groups- Zosteraceae, Hydrocharitaceae, Posidoniaceae, and CymodoceaceaeHuman uses- fertilizer, insulation, furniture, mattresses etc…ONE OF THE MOST VALUABLE ECOSYSTEM CONTRIBUTORS IN THE WORLD”Lungs of the sea”One square meter – generates 10 L of oxygen per day CHECKLOOK UP “BLUE CARBON” to “The Blue Carbon Initiative, 83% of the carbon cycle is circulated through the ocean


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