How Deep are our Oceans and Seas?
Without our oceans and seas, there would be no fish. In our regular blog feature we explore the depth, area and volume of Earth's oceans and seas. Here is a run down of the depth and area of the Arctic ocean.
The Arctic Ocean covers an area of approximately 5.5 million square miles, or nearly 14,000,000 (fourteen million) square kilometres.
The Arctic Ocean has an average depth of around 4,000 feet, or around 1200 metres. It has a greatest depth of around 18,500 feet, or 5,500 metres.
The Arctic Ocean makes up around 1.4% of the total volume of the Earth's oceans. The Arctic Ocean is the world's coldest and shallowest ocean, and includes the North Pole region in the middle of the Northern Hemisphere. It is the only ocean smaller than the landmass of Russia.
How Many Fish Live in the Oceans on Earth?
Scientists estimate the total number of fish in the Earth's ocean to be around 3,500,000,000,000, comprising of around 20,000 different species. However, accurately counting the number of fish is near-impossible task. It is very difficult to estimate what percentage inhabit the Arctic Ocean.
The estimated number of fish in our oceans and seas is constantly changing due to environmental factors, plus as fishing, predation, and reproduction.
Photo credit(s): Arctic Ocean, Mu Memories / Getty Images (title image)
Arctic Icebergs Greenland, Explora_2005 / Getty Images (above)