For the same reason they are in no other ocean, there is no requirement for them.
Floating markers in the ocean are called buoys.
When sailing the ocean blue, buoys are an invaluable tool. They assist in navigation by directing ships into shipping channels and away from shoals or crowds.
The word buoy can be a noun or a verb.noun -- The buoy marks the entrance to the channel.verb -- The life jacket buoyed him up. - past tense..
Barnacles (related to crabs and lobsters) Boats Buoys
they put up buoys in the indian ocean to detect future tsunamis
Todd N Kenyon has written: 'Data from drifting buoys deployed in the equatorial Pacific between April 1, 1987 and June 30, 1988' -- subject(s): Observations, Ocean temperature, Oceanographic buoys, Ocean currents
Some red buoys are known as "nun" buoys.(Ref: SB-4)some red buoys are known as nun buoys
G. D. Hamilton has written: 'Guide to Moored Buoys and Other Ocean Data Acquisition Systems' -- subject(s): Oceanographic buoys, Meteorological instruments
Yes, scientists use buoys equipped with various sensors to measure changes in the ocean, such as temperature, salinity, currents, and wave height. These data help monitor and understand ocean conditions, including the impacts of climate change and natural events like El Niño.
Yes, tsunamis can be detected in the open ocean using buoys equipped with sensors that measure changes in water pressure. These buoys can transmit data to alert systems onshore, which can then issue warnings to coastal communities.
Paolo Giannetti has written: 'The velocity field in the northeast Atlantic from satellite- tracked drifting buoys' -- subject(s): Subduction zones, Oceanographic buoys, Statistics, Ocean currents