Today we're going to talk about a type of sea with some unique characteristics, considered a large body of water: the South China Sea . It's a marginal sea located in the Pacific Ocean, and its name comes from its location south of China. The sea covers an area of ​​approximately 3.6 million square kilometers and is situated south of mainland China.
In this article we are going to tell you about all the characteristics, formation and importance of the South China Sea.
Key features
This is a type of sea that borders the Philippines, Taiwan, Malaysia, Singapore, Indonesia, Thailand, Brunei, Cambodia, and Vietnam. To the northeast lies the Taiwan Strait, to the east the Malay Peninsula, and to the south Borneo. It is considered a large body of water with an elliptical central basin containing more than 250 small islands, banks, reefs, atolls, and cays. Several large island groups are popular destinations for fishing and tourism. Numerous rivers flow into this sea, including the Mekong, the Pearl River, the Min, the Jiulong, the Rajang, the Pajang, the Red River, the Pampanga River, and the Pasig. The Mekong River is one of the most important tributaries feeding this vast sea.
The South China Sea is relatively shallow. Unlike other seas that, despite being smaller, are deeper, this sea has an average depth of approximately 1.212 meters. It has a shallow sea floor that reaches a depth of 4.300 meters. The exchange of water with the ocean occurs largely through the Luzon Strait. This strait connects the South China Sea to the Philippine Sea, forming part of the eastern Pacific. The Malay Peninsula is also a key point due to its influence on the region's ocean currents.
South China Sea Temperatures
If we analyze the surface and surrounding areas, we see that the waters are generally warm. The average temperature hovers around 29 degrees Celsius during the summer months. While temperatures do vary during the winter, the change is minimal. It is still considered one of the warmest seas. Winter temperatures drop to around 21 degrees Celsius, but remain relatively constant, reaching 27 degrees Celsius in some areas. The northern part is the coldest.
Monsoons exert a significant influence on this sea. These monsoons control the surface currents and winds in this area. It is quite common for typhoons to form during the summer months, as has happened in the past, so it is important to stay informed about typhoons in this region . It is considered one of the largest marginal seas in the world and is the largest in the entire western Pacific Ocean.
Formation and origin
As part of the Pacific Ocean, the South China Sea was formed from this great ocean and was generated more than 750 million years ago. At that time, there was a super continent known by the name of Rodinia. It must be borne in mind that this sea is approximately 45 million years old, although it was previously formed. It originated as a result of various tectonic events possibly after an area moved away from the rest of southern mainland China.
Some scientists believe that the tectonic plate movement that created this sea began approximately 55 million years ago. This movement intensified when the Indian and Eurasian tectonic plates collided. Studying the formation of this sea allows us to connect it to other seas around the world, as its geological context is fascinating. Exploring the world's seas helps us better understand their significance.
The basin that gave rise to this sea, even in its early stages, formed during the Miocene epoch. This basin expanded until it reached the point of seafloor spreading, forming new crust after the breakup of the continental crust of the supercontinent Rodinia. It took approximately 30 million years to form. The sea was slightly submerged during the ice age that occurred during the Pleistocene epoch.
Biodiversity of the South China Sea
This sea is very rich in marine life. Many species of fish are an essential part of the diet of all the coastal communities. Among the marine fauna of the South China Sea are tuna, sardines, herring, mackerel, and croaker. However, human activity is causing overfishing in these areas, and some species are on the verge of extinction. There are also some endangered species that are not solely edible fish. These include the green sea turtle and the hawksbill sea turtle. These two turtles were once very abundant, although today their numbers are scarce. They can still be seen in some specific areas.
Many types of sharks make these waters their home. Some of them are true predators, such as the great white shark, the basking shark, and the zebra shark. Along the coasts, especially those located in the south of this sea, they can be observed in numerous coral reefs. In other areas, there are seagrass beds and numerous islands that can provide a perfect habitat for certain bird species, such as the brown gannet, the yellow-billed tern, and the white tern. Furthermore, the area's biodiversity is fueled by the resources found on the seabed, which are abundant in places like the South China Sea.
One of the advantages this sea offers, and a key reason for its rich biodiversity, is that the South China Sea is very rich in natural resources. It has natural gas reserves that may constitute the largest hydrocarbon resource in the entire region. This makes the sea of ​​great economic importance. Only some of the island groups mentioned earlier are truly abundant in oil and natural gas. In general, it is believed that the seabed holds vast reserves. These waters are an important maritime route that has been navigated for centuries and is crucial to the economies of several countries, forming part of the Pacific Ocean nations.
This sea is threatened by multiple factors. These include overfishing and bycatch, which are causing a decline in fish biodiversity. Numerous turtle nesting sites are also affected by habitat loss and overfishing . Pollution is one of the major problems impacting biodiversity.
I hope that with this information you can learn more about the South China Sea.