Domain Archaea also includes
halophiles.
Here are halophiles in the southern part of
the San Francisco Bay: the Alviso salt ponds.
These guys like highly salty environments,
in this case many times saltier than
ocean water.
What are they doing there? See
Cargill;
Don Edwards
San Francisco Bay National Wildlife Refuge;
the
Cargill Agreement;
and the
San Jose Mercury News article about the whole thing.
There is a mistake in the article -- these are
not "algae"!