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Red circles show the location and size of many dead zones (in 2008). Black dots show dead zones of unknown size. The size and number of marine dead zones—areas where the deep water is so low in dissolved oxygen that sea creatures cannot survive (except for some specialized bacteria)—have grown in the past half-century.
The map indicates coastal sites where oxygen levels have declined to less than 2 mg/L (red dots), as well as expanding ocean oxygen minimum zones at 300 metres (blue shaded regions). [1] Ocean deoxygenation is the reduction of the oxygen content in different parts of the ocean due to human activities. [2] [3] There are two areas where this occurs.
The average size of the dead zone is 4,298 square miles, based on the past five years of data. The 2024 zone in the Gulf is about 6,705 square miles, which is an area roughly the size of New Jersey.
In 2018, scientists confirmed the Gulf of Oman contains one of the world's largest marine dead zones, where the ocean contains little or no oxygen and marine wildlife cannot exist. The dead zone encompasses nearly the entire 165,000-square-kilometre (63,700 sq mi) Gulf of Oman and equivalent to the size of Florida, United States of America.
The Atlantic Ocean is teeming with life, but for the first time researchers have discovered dead zones in these waters - areas low in both oxygen and salinity - off the coast of Africa. Fish can't ...
Every spring, an area appears when the water doesn't have enough oxygen to support fish and other marine life.
The southernmost point of ocean is located on the Gould Coast ... given map data at a 1.8 km (1.1 mi) level of resolution. ... (other than the more general dead zones
The Oregon coast is known for its stunning beauty. "Our family fishing boat, the Timmy Boy, has just come in from a trip fishing for sablefish," says fisherman Bob Eder. Eder says this abundant ...