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The global map shows changes over time in the amount of aragonite dissolved in ocean water, which is called aragonite saturation. This map was created by comparing average conditions during the 1880s with average conditions during the most recent 10 years (2003-2012).
This series of reactions governs the pH levels in the ocean and also dictates the saturation state of seawater, indicating how saturated or unsaturated the seawater is with carbonate ions. Consequently, the saturation state significantly influences the balance between the dissolution and calcification processes in marine biogenic calcifiers.
They are mostly visible by a depth of 140 meters, except for the Arctic and Antarctic regions, where the shelves are deeper. The mid-ocean ridges start to appear at a depth of 2000 to 3000 meters. By 6000 meters, most of the ocean is drained except for the deep ocean trenches, the deepest of which is the Marianas Trench at a depth of 10,911 meters.
The lower the aragonite saturation level, the more difficult it is for the organisms to build and maintain their skeletons and shells. The map below shows changes in the aragonite saturation level of ocean surface waters between 1880 and 2012. [107] To pick one example, pteropods are a group of widely distributed swimming sea snails.
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.
Our Oceans is a five-part Netflix documentary series that explores the wonder of Earth's oceans. It is presented by former president of the United States Barack Obama and was released on November 20, 2024.
Ocean Infinity is based in Austin, Texas and Southampton, England, and was founded in July 2017. The company is led by CEO Oliver Plunkett and is a privately held company. [1] [3] Ocean Infinity was created after recognising the effectiveness of using marine robots in scale to acquire and analyse data from the oceans. [4]
Craigslist Joe is a 2012 documentary film that follows Joseph Garner for a month of travel across the United States, solely supporting himself by contacting people on the website Craigslist. [4] He spent the month without using any form of currency and without contacting people he already knew, [5] relying on Craigslist users' "kindness and ...