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Ocean contains some of the most graphic footage of the damage that bottom trawling – a common fishing practice around the world - can do to the seabed.

Welsh Labour also wants control of the Crown Estate, which is responsible for the seabed around Wales, and is vital for the development of floating offshore wind.

The latest US executive order was issued to "establish the United States as a global leader in responsible seabed mineral exploration", it reads.

The robot descends to the seabed to collect fluids, gases and snap off chunks of rock.

Research published in 2023 found that a year after test seabed mining disturbed the ocean floor in Japanese waters, the density of fish, crustaceans and jellyfish in nearby areas was cut in half.