Is there phytoplankton in the Southern Ocean?
In the Southern Ocean, large-scale phytoplankton blooms occur in open water and the sea-ice zone (SIZ). These blooms have a range of fates including physical advection, downward carbon export, or grazing. These similar trends reveal widespread patterns in phytoplankton fate throughout the Southern Ocean SIZ.
What is the Southern Ocean called?
Antarctic
Historically, there are four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, most countries – including the United States – now recognize the Southern (Antarctic) as the fifth ocean. The Pacific, Atlantic, and Indian are the most commonly known.
What year did the IHO create the Southern Ocean?
2000
The IHO Makes a Decision The IHO published the third edition of Limits of Oceans and Seas (S-23), the global authority on the names and locations of seas and oceans, in 2000. The third edition in 2000 established the existence of the Southern Ocean as the fifth world ocean.
Why is the Southern Ocean not navigable?
The rivers of Peninsular India are not suitable for navigation as they flow swiftly over the plateaus and highlands. The peninsular rivers of the south have their source in the Western Ghats and flow across hills making a number of waterfalls, which are not navigable, but provide Hydro-electricity.
What is the dominant phytoplankton in Southern Ocean?
Diatoms dominate the phytoplankton in this region and their numbers generally increase southward with peaks of abundance in both the northern Antarctic Zone and south of the Antarctic Divergence. Nitzschia species of the Fragilariopsis group are most numerous at stations south of the Antarctic Divergence.
Why are the phytoplankton so important?
Phytoplankton are microscopic marine organisms that sit at the bottom of the food chain. Phytoplankton get their energy from carbon dioxide through photosynthesis (like plants) and so are very important in carbon cycling. Each year, they transfer around 10 billion tonnes of carbon from the atmosphere to the ocean.
What are the seven oceans called?
The Seven Seas include the Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian, and Southern oceans. The exact origin of the phrase ‘Seven Seas’ is uncertain, although there are references in ancient literature that date back thousands of years.
What is the deepest part of the Southern Ocean?
23,740′
Southern Ocean/Max depth
What was the Southern Ocean called before?
Antarctic Ocean
Related subjects: Antarctica; General Geography. The Southern Ocean, also known as the South Polar Ocean (and formerly the Antarctic Ocean), is the body of water encircling the continent of Antarctica.
What does the IHO mean by the Southern Ocean?
The IHO, the International Hydrographic Organization, has attempted to settle that debate through a 2000 publication that declared, named, and demarcated the Southern Ocean.
How many countries are members of the IHO?
There are 68 member countries of the IHO. Membership is limited to non-landlocked countries. Twenty-eight countries responded to the IHO’s request for recommendations on what to do about the Southern Ocean. All responding members, except Argentina, agreed that the ocean surrounding Antarctica should be created and given a single name.
Is there a new ocean called the Southern Ocean?
The Southern Ocean has been unofficially recognized by scientists for years now, making this new addition not so surprising. However, in 2000 the International Hydrographic Organization (IHO) rejected the idea and boundaries of this new ocean due to not all IHO members agreeing with these terms, according to WWLP.
Is the Southern Ocean the fifth World Ocean?
The third edition in 2000 established the existence of the Southern Ocean as the fifth world ocean. There are 68 member countries of the IHO. Membership is limited to non-landlocked countries. Twenty-eight countries responded to the IHO’s request for recommendations on what to do about the Southern Ocean.