Where is The Amazon River? How long is the Amazon River?

Where is The Amazon River? How long is the Amazon River? The Amazon River is located in the northern portion of South America, flowing from west to east. The river system originates in the Andes Mountains of Peru and travels through Ecuador, Colombia, Venezuela, Bolivia, and Brazil before emptying into the Atlantic Ocean. Roughly two-thirds of the Amazon’s main stream is within Brazil.

Where is The Amazon River?

The origin of the world’s largest river—by volume—has been surprisingly hard to pin down. Explorers and scientists have argued over where to locate the start of the Amazon River since at least the mid-1600s, with no fewer than five rivers in southwestern Peru given the honor over the years.

Now the authors of a study published in the journal Area say they’ve located the mighty river’s true source: the Mantaro River in southwestern Peru. If they’re right, their discovery would add 47 to 57 miles (75 to 92 kilometers) to the length of the Amazon, currently measured at about 4,000 miles (6,437 kilometers) by the U.S. Geological Survey.

Using six different methods of measurement—including GPS tracking data and satellite images—professional kayaker James Contos and his team, funded in part by a grant from the National Geographic Society, determined that the Mantaro River is about 10 percent longer than the Apurímac River, which has been considered the Amazon’s source since 1971.

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One reason the Mantaro may have been overlooked, say Contos and his anthropologist co-author Nicholas Tripcevich of the University of California, Berkeley: A twisting bend, or kink, in the river’s lower half makes it look much shorter than it really is.

But whether geographers accept the claim of Mantaro as the Amazon’s true origin depends on which definition of a river’s source they choose to apply: Is it the farthest point upstream that provides the largest volume of water, or is it the most distant point up the longest tributary in the river’s drainage basin?

The current internationally accepted definition is the most distant point of a river’s longest tributary that flows continuously. In their study, Contos and Tripcevich argue that the length of a tributary should trump whether it flows year-round.

The Amazon River

How long is the Amazon River?

Most researchers believe that it is at least 4,000 miles (6,400 km) long. However, no definitive measure is available because no one is entirely sure where the Amazon ends and begins. Given the complexity of the river system, much of which is in remote areas, researchers have proposed several locations in Peru as its source.

As to its end point, the Amazon has three outlets to the Atlantic Ocean: two on the northern side of Marajó Island in Brazil and one to the island’s south that joins the Pará River. Scientists have typically selected one of the northern outlets, since the Pará is an estuary of the Tocantins River, which is technically separate from the Amazon.

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Why is the Amazon River famous?

The Amazon is well known for a number of reasons. It is the greatest river of South America and the largest drainage system in the world in terms of the volume of its flow and the area of its basin.

While there is some debate about its length, the river is generally believed to be at least 4,000 miles (6,400 km) long, which makes it the second longest river in the world after the Nile River in Africa. The Amazon is also famous for the rainforest found along its shores. The Amazon Rainforest represents about half of Earth’s remaining rainforest and is the world’s largest biological reservoir, home to more than a million species.

What animals live in the Amazon River?

About 2,500 fish species have been found within the Amazon system, but many more remain unidentified. Among the more important commercial species are the pirarucu, one of the world’s largest freshwater fish, and various giant catfish.

The small flesh-eating piranha generally feeds on other fish but may attack any animal or human that enters the water. Other animals include caiman, river turtles, river dolphins, and manatees. The Amazon is also home to the semiaquatic capybara, the largest rodent in the world, and the nutria (or coypu).

The Amazon River

How large is the Amazon Rainforest?

The Amazon Rainforest stretches from the Atlantic Ocean in the east to the tree line of the Andes in the west. The forest widens from a 200-mile (320-km) front along the Atlantic to a belt 1,200 miles (1,900 km) wide at the Andean foothills. Brazil holds approximately 60 percent of the Amazon within its borders.

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It Affects Sea Level in the Caribbean Sea

The Amazon River releases so much freshwater into the Atlantic Ocean, it alters sea level in the Caribbean. As freshwater leaves the mouth of the Amazon, it gets picked up by the Caribbean Current, which carries the water to the Caribbean islands.

On average, models predict the Amazon River alone causes sea levels around the Caribbean to be around 3-cm higher than they would be without the Amazon’s freshwater contributions.

It’s Home to the Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis), also known as the pink river dolphin or boto, is one of just four species of “true” river dolphins. Unlike their ocean-dwelling counterparts, river dolphins live exclusively in freshwater habitats. Based on a fossilized dolphin discovered in Peru’s Pisco Basin, the Amazon River Dolphin is estimated to have evolved about 18 million years ago.

While the Amazon River dolphin is quite abundant in the waters of the Amazon and Orinoco rivers, it is currently considered an endangered species due to recent population declines resulting from a number of human activities. Populations of the Amazon River dolphin are particularly hurt by the damming and pollution of the Amazon River.

The dolphins are also killed by fishermen for use as bait to catch catfish. In recent years, fisherman have switched from catching the “capaz” catfish (Pimelodus grosskopfii) to the “mota” (Calophysus macropterus), the latter of which is easily attracted by Amazon River dolphin bait.

The Amazon River

Above is information about Where is The Amazon River? How long is the Amazon River? that we have compiled. Hopefully, through the above content, you have a more detailed understanding of The Amazon River. Thank you for reading our post.

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