The phrase 'in every ocean' is correct and usable in written English.
It could be used in a variety of contexts, depending on the context and meaning. For example: "Life forms exist in every ocean, with some of the most unique creatures found at the deepest depths of the sea."
Significant warming has been observed in every ocean, yet our ability to predict the consequences of oceanic warming on marine biodiversity remains poor.
It is found in every ocean.
The jellyfish seems able to survive, and proliferate, in every ocean in the world.
They are found in every ocean – from the surface to the deep sea.
In every ocean, rapacious trawlers, purse seiners and longliners are overfishing to an alarming degree.
"My plan is to swim in every ocean and then write a book about it".
The bodies of dead giant squid have been found in nearly every ocean: in the Pacific, near California; in the Atlantic, off the coasts of Newfoundland and Norway; and in the Indian, south of South Africa.
As reporting improves and ocean currents and biomes change, scientists are discovering jellyfish in greater numbers in nearly every ocean, and various species of box jellyfish have shown up in places where they have not recently been abundant, including Japan, India, Israel, and Florida.
You write that giant-squid carcasses have been found in nearly every ocean but seem to be concentrated in certain areas.
"Given the documented failings of both Transocean and Halliburton, both of which serve the offshore industry in virtually every ocean, I reluctantly conclude we have a system-wide problem," said commission co-chair William Reilly.
Given the documented failings of both Transocean and Halliburton, both of which serve the offshore industry in virtually every ocean, I reluctantly conclude we have a system-wide problem".
