The Effect Of Oa On Marine Biodiversity

Some of the carbon dioxide is being combined with our oceans to make up carbonic acid. Thus decreasing the PH of the oceans, and with this acidification it is known to be dangerous for many reason. Many of the large animals are losing key nutrition, it is hindering photosynthesis and is even wiping out existing ecosystems. The one key group that is harmed the most is creatures that are classified as Calcifiers. They are one of the most common animals in the sea, which means that, if the acidity of the oceans continue to rise, a significant chunk will die out or have to adapt rapidly to the environmental change. The reason they are in the most danger is because with the ocean becoming more acidic it is eroding the shells off of the sea

Currently there is no saturation level above four in the world. If current trends continue, by 2060, there will be no location above 3.5 and by 2100, no place above 3. The negative trends are extremely concerning as the changing water levels are making the reefs’ survival more unlikely. The energy required for calcification increase, and thus calcification rates decrease. Because of the lack of growth, coral diversity plunges. Over half a million species have spent their life on coral reefs. Coral reefs are intricate exchange bazaars that pass nutrients to various animals. Without the reefs, this exchange would not be possible and the abating of the reefs contributes to the disappearance of the ecosystem as a whole. While ocean acidification is not the only reason for the withering reefs, it is the most detrimental. The effect of ocean acidification extends beyond just the coral reefs. This process affects marine animals’ tightly regulated internal chemistry such as metabolism, enzyme activity, and protein function. Ocean acidification alters the presence of key nutrients such as iron and nitrogen essential to animals. It will also make the ocean noisier (Kolbert 136-141). The implications of ocean acidification are interminable. Human realization is imperative to slow the rate at which ocean saturation is declining. The less carbon emissions released in the air, the less carbon dioxide is absorbed by the ocean which will inadvertently prove beneficial to the coral reefs, but also many other species dependent on the

“Since the beginning of the industrial era, the ocean has absorbed some 525 billion tons of CO2 from the atmosphere, presently around 22 million tons per day” (Ocean Portal, n.d). This number is expected to increase forevermore as atmospheric carbon dioxide levels increase and the effects of Climate Change worsen. At first, the idea of our oceans absorbing carbon dioxide from the atmosphere may sound great, however, scientists have been quick to learn otherwise. High concentrations of carbon dioxide in oceans can have detrimental effects on the ocean chemistry and marine ecosystems (Hardt; Safina, 2008). Marine ecosystems are greatly complex and depend on every marine organism to function properly, any change can put the whole ecosystem at risk. For example, the increase of carbon dioxide in our oceans is responsible for the dissolving of “brittle star” skeletal parts, which has in effect caused food scarcity for many fish, crabs, shrimp, and other starfish (Leu, 2013). Furthermore, these marine ecosystems are very important to humans- being the primary food source for millions around the world and having an economic market worth trillions of dollars (Hardt; Safina, 2008). Part of keeping these ecosystems safe is to understand how they work and how projected changes can harm marine organisms.

Chapter Seven details ocean acidification and the extinction of coral reefs, which is entirely possible by the end of the

Presented in an informal style of writing, “What Is Ocean Exploration and Why Is It Important?” inform its readers about the importance of researching and discovering the unknown ocean. It explains how much work is needed for the documentation of the ocean in varies areas, at the same time it addresses that scientist will be able to better understand the unknown oceans. For example, the time needed to obtain and study the result, as well as answer how the change in atmosphere will cause the ocean to react and affect life. The information obtain will also provide the baseline for scientist, researcher and government agencies to make important and dangerous decisions for the future. Sometime during research amazing things happen and new resources may be revealed. Besides informing about the ocean researching, the article also has a background idea as it is trying to encourage and get its readers interested into joining the field of ocean researching by emphasizing the role the ocean plays and how it will help ensure that ocean resources are well managed for future generations to enjoy.

The ocean is a very delicate ecosystem in which the slightest change of pH or chemical composition will result in devastating results. Between 25 and 40% of anthropogenic carbon emissions have entered the marine area since the industrial age (Sabine et

Ocean Acidification is a process that occurs everyday and majorly affects our planet, but most people don’t even realize it exists. Though it can technically be argued that Ocean Acidification has some benefits for the planet, most of the time the effects of this process are very poor and negatively affect the entire world around us. Human evolution has played a major role in contributing to Ocean Acidification. Whenever humans use energy we release Carbon Dioxide into the atmosphere or also known as CO2. This can be in the form of burning fossil fuels from the ground or the removal of national forest by burning. CO2 is a greenhouse gas, which means whenever we can emit it in large quantities or unnatural amounts it can have negative effects on the atmosphere. These high levels of CO2 in the atmosphere result in climate change and more specifically Ocean Acidification. Ocean Acidification occurs when excess Carbon Dioxide is absorbed into the ocean. When this process takes place it can completely disturb the chemical balances of the water. For example, it can reduce pH levels, Biodiversity, and the abundance of calcifying species.

G., Cong-Qiang, L., WeiDong, Z., Minella, M., Vione, D., Kunshan, G., & ... Hiroshi, S. (2016). Reviews and Syntheses: Ocean acidification and its potential impacts on marine ecosystems. Biogeosciences, 13(6), 1767. doi:10.5194/bg-13-1767-2016

This increase in oceanic inorganic carbon has offset the seawater carbonate chemistry by causing increasing concentrations of CO2 and bicarbonate, while causing decreasing concentrations of carbonate and pH levels (Dedmer 2013). Rost and colleagues (2008) express that emissions of fossil fuel have caused an immense increase in the levels of atmospheric CO2, which are then deposited into the surface water of oceans. This increase in carbonic acid is in turn decreasing the pH balance, which poses a threat to marine organisms.

About half of that man-made CO2 has been absorbed by the oceans, increasing the concentration of carbonic acid, which has caused the oceans to become more acidic. Over the past 300 million years, ocean pH has averaged about 8.2. Today, it is around 8.1, a 25% increase in acidity over the past two centuries. That increase is projected to reach 150% by the end of this century, a rate of change not seen in 65 million years. A more acidic ocean inhibits shell growth in marine animals such as corals, crustaceans and mollusks, and disrupts entire food chains all the

“How acidification threatens ocean from the inside out: Carbon dioxide emissions are making the oceans more acidic, imperiling the growth and reproduction of species from plankton to squid”, by Marah J. Hardt and Carl Safina addresses the dangers of increasing acidity in the ocean caused by carbon dioxide. Hardt, a research scientist and writer, is the founder of Ocean Ink. Safina, an adjunct professor at Stony Brook University, is the founding president of the Blue Ocean Institute.

Ocean Acidification is affecting our life more than we ever thought it would be able to. When people first think about oceans, they don’t see the diversity of life that is in there or how much we depend on those organisms and the ocean itself. We only see this ginormous body of water, where some feel like it’s not a big deal if anything happens to it. Ocean acidification (as defined by NOAA) is “ongoing decrease in the pH of the Earth’s oceans, cause by the uptake of carbon dioxide from the atmosphere, this then creates an acid”. Each year the ocean absorbs at least 25-30% of all CO2 from human activity. This can be a huge threat to the diversity of the ocean and the benefits it provides to society. The rate continues to go up, more so than anyone would have thought it would and as these continue to raise the risks we are facing could be bigger than we thought and we could soon be facing a mass extinction.

In “Sponge erosion under acidification and warming scenarios: differential impacts on living and dead coral”, Amber Stubler, Bradley T. Furman, and Bradley J. Peterson acknowledges that climate change and ocean acidification will disproportionately impact the growth of calcifying organisms in coral reef ecosystems. Simultaneously, sponge bio-eroders, will be a growing threat as seawater pH level decreases. Stubler, Furman and Peterson emphasizes that while species vary in degree of vulnerability, the effect of acidification on coral health, calcification, survival, and reproduction has been revealed to be negative. Concurrent inflation of sea surface temperatures as result of elevated C02 will impact coral calcification and survival on reefs.

The world we live in is so vast and exciting. Seventy percent of our world is liquid water we call the ocean. In the ocean there are many creatures that each are unique in their own way. However, it is possible that in our lifetime, many marine organisms will become endangered or possibly extinct. The loss of these mejestic marine creatures will be caused mainly because of human advancements in which fossil fuels are used to produce energy. Biodiversity is greatly affected by this increase in acidity. As the ocean acidifies, multiple social and economic issues arise. As humans, we rely on the ocean for almost everything. Much of our food, clothing, cleaning products and cosmetics come from the ocean. With the loss of

The main factors in this climate change are observed to be the increase in temperatures and the resulting acidification of the oceans. The previously mentioned changes and others in the report are readily observable, such as the uptake of anthropogenic carbon since 1750 that has led to the ocean becoming more acidic, with an average decrease in pH of 0.1 units and in some instances blatantly obvious, even to the average layperson. It is difficult to conclude what the rate of change in the future will be and the effects of observed ocean acidification on the marine biosphere.