How does ocean acidification affect oxygen production and role of carbon dioxide in ocean acidification?
This is an interesting question.
How does ocean acidification affect oxygen production?
1. Oxygen production in the ocean (the coastal shelf is somewhat different) is conducted by microorganisms, as of today, we see a shift in the communities of microorganisms, I don't think that today or in any other time this will cause a reduction in oceanic oxygen production because different taxa will be the producers.
2. We also have to remember that the fertilizer industry causes increased fertilization of the ocean, which leads to increased oxygen production.
3. We have to remember that the amount of dissolved Oxygen in the ocean is reduced because warmer water has less gas solution capacity
4. This is a different story in the deep ocean, warmer surface water reduces water (and dissolved Oxygen) sinking to the deep water. Also, higher oxygen production in the surface water means higher particulate organic matter (POC) production. this POC then sinks into the deep water, is consumed there and that way reduces deep water ocean.
5. CO@ is an acid in seawater so the reduced deep water Oxygen means higher CO@ and acidification
So to make things short, Oxygen production will increase (not directly related to acidification) but ocean concentration will be somewhat reduced in the warmer surface water and significantly reduced in the deep water.
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1, which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic. As carbon dioxide dissolves into oceans and makes them more acidic, less oxygen is dissolving into warming waters. The research showed that these two chemical consequences of climate change could conspire to affect the surface-breathing behavior of some fish. Ocean acidification occurs when carbon dioxide (CO2) is absorbed rapidly into the ocean. It reacts with water molecules (H2O) to form carbonic acid (H2CO3). This compound then breaks down into a hydrogen ion (H+) and bicarbonate (HCO3-). These hydrogen ions decrease seawater pH. Ocean acidification is sometimes called “osteoporosis of the sea.” Ocean acidification can create conditions that eat away at the minerals used by oysters, clams, lobsters, shrimp, coral reefs, and other marine life to build their shells and skeletons. Human health is also a concern. Ocean acidification is sometimes called “osteoporosis of the sea.” Ocean acidification can create conditions that eat away at the minerals used by oysters, clams, lobsters, shrimp, coral reefs, and other marine life to build their shells and skeletons. Human health is also a concern. When we burn fossil fuels, carbon (C) combines with oxygen molecules (O2) to make carbon dioxide (CO2), which is a greenhouse gas that is the main contributor to climate change. This process traps the oxygen molecules that are in our air into the CO2–which means there's less oxygen for life to breathe. The equation itself is CO2 + H2O -> (H+) + (HCO3-). Ocean acidification is a process that results from too much carbon dioxide being absorbed into the water. Factors associated with increased peripheral tissue metabolism, such as reduced pH, increased CO2, and increased temperature, shift the curve to the right. This reduces hemoglobin's affinity for oxygen and thus improves oxygen unloading. When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops.