It is likely that on more than one occasion you have been talking or observing the seas and oceans and you have fallen into a confusion as to how to designate the portion of water to which you are referring, you want to know how they really differ? Well, we recommend that you follow this reading.
The reason why we use the words seas and oceans is to better distinguish large areas of water, some larger than others, because they are located in different geographical locations and are also ecologically different.
Both constitute large areas of salt water, as opposed to lakes and immense rivers, which contain vast varieties of fauna, fauna and other elements that are important for the economic systems of the countries that are on their coasts, also taking into account the natural riches that can be found in its depths, which constitute the Continental Drift.
What are the oceans?
In the first place, we must have an understanding of the differences that exist between the seas and oceans, for this we must be clear about what each concept means by itself. With that explanation we will be able to distinguish one from the other at the end of reading this article, without making any mistakes in the future.
Well, the oceans are huge areas of salt water that make up a portion of the Earth's hydrosphere. These are areas that fill the largest area of the earth's surface with water. There are five oceans on the entire planet, into which the waters of the entire world are divided. These oceans are:
Atlantic Ocean
It is the extension of salt water that separates the American, European and African continents. This is the most relevant of all the oceans, because, from a commercial point of view, it contains the most exploited routes for maritime trade activities, which are basically imports and exports.
In addition, in its waters are the currents that transfer heat and cold and distribute them from its portion of water that is in the equator towards the north pole in an equitable way, allowing the climatic changes necessary to sustain life.
Pacific Ocean
It is the ocean that has the largest extension of all, being around one hundred and eighty million square kilometers. It is geographically located between the Asian, American and Oceanic continents.
Indian Ocean
It is located between the African, Asian and Oceanic continents, but it is much smaller than the Pacific, since it has an area of about seventy-four million square kilometers.
Antartic Ocean
As its name indicates, it is located in the coastal vicinity of Antarctica and only occupies an area of fourteen million square kilometers, covering the entire South Pole.
Antartic Ocean
Like the previous one, it is geographically located around the coasts of the Arctic, in the North Pole and has an area of around twenty-two million square kilometers.
Definition of sea
At this time we know what the oceans are, as well as those that exist on the planet. But in the case of the seas it is a totally different case. The seas are large portions of salt water, which may or may not be related to an ocean.
Usually they are connected to an ocean. But these are areas of much smaller size than those of the oceans, and they are also less deep. They are not natural outlets and are very close to land. Another characteristic that distinguishes them is that the seas have waves and the oceans do not.
In this section we are going to elaborate a list of the most important seas of the entire planet, and we will be able to observe that unlike the oceans, there are many seas, distributed in different latitudes of the world, but we will only mention the most relevant ones:
Mediterranean Sea
It is the largest area of inland continental saltwater in the world. It is geographically located between the African, Asian and European continents.
Baltic Sea
It is an extension of inland continental salt water that is located on the coasts of northwestern Europe. It covers an approximate area of four hundred and twenty thousand square kilometers.
Caribbean sea
It is very likely that you have heard of this sea on many occasions, being a paradisiacal place to enjoy a dream vacation. It is located on the continental coasts of Central and South America, with an area of about two million seven hundred thousand square kilometers.
Caspian Sea
It is the sea that is located in the southwest of the European continent and has an area of about three hundred and seventy-one thousand square kilometers.
Dead Sea
This is another of the seas that you may have heard of. It is located in the Middle East. It owes its name to the concentration of salt contained in it, which prevents the development of any form of life.
Black Sea
It owes its name to the color of its waters and is located between the European continent, the city of Anatolia and the Caucasus.
Red Sea
It also owes its name to its color, due to the presence of an algae, and is located between Asia and Africa.
https://www.youtube.com/watch?v=FfIAhJimB8M
Salty waters
Considering that you already know the concepts of seas and oceans and which are the most important on the planet, we will proceed to explain what their differences are.
The size and location
The most relevant difference between the seas and oceans is in its size. The seas are always going to be a smaller extension of salt water than the oceans. They are characterized by being closed and located between the coasts and the oceans. In contrast, the oceans are open waters and have a wide depth.
the currents
Another difference between seas and oceans, is that the oceans have many marine currents that produce effects that affect the movement of the waters and the Temperature and Humidity, while in the seas there is nothing like it. These ocean currents are the main responsible for the formation of hurricanes and cyclones, an issue that is unlikely to occur in the seas.
There are some seas that do not have a very large area, which is why it could be said that they are immense saltwater lakes, such as the Caspian Sea, the Dead Sea and the Aral Sea, which are sometimes classified as that way.
The temperatures
Another difference between seas and oceans are the temperatures. For the reason that the oceans have great depths, greater than those of the seas, it is usual that they reach lower temperatures. On the other hand, the seas are closer to the earth's surfaces and obtain a greater volume of solar radiation and their waters warm up, so they enjoy higher temperatures.
But the temperatures are usually not the same in the different seas, so we cannot consider it as a defining condition. An example of this is that the waters of the Mediterranean turn out to have a higher temperature than those of the Dead Sea.
It is interesting to know that there is an inversely proportional relationship between the seas and oceans, regarding its current capacity to contain water and it is due to the fact that today it has been shown that the seas are going through a process of desertification and have seen their volume reduced due to global warming, on the contrary, the oceans have seen their volume increase volume by receiving more fresh water from the melting of the polar ice caps.
Biodiversity
As far as biodiversity is concerned, the seas have a greater quantity than the oceans. This is because the seas absorb a greater volume of solar radiation and are shallower. For that reason, the seas are places where a large proportion of species live.
On the other hand, in the oceans we will find a smaller number of species, but they are animal species that have the ability to adapt to different environments and depths. Therefore, many species that live in the deep ocean are not able to migrate to coastal areas.
It must also be taken into account that, although there is a greater number of living species in the seas, there is also a higher mortality rate, due to the fact that they are more exposed to environmental contamination. The oceans, because they are larger and located farther from the coasts, do not suffer more severely from the effect that man produces on the environment.
With everything that we have explained to you, we hope that your doubts regarding the differences between the seas and oceans.