Bottom-trawling's knock-on impacts are best illustrated by the plight of the deep-sea fish, the orange roughy (also known as slimeheads) whose populations have been reduced by more than 90%, according to marine scientists.

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The effort, called a "top kill, " involved plugging the ruptured deep-sea well by pumping heavy drilling fluid into it from the surface, nearly a mile above.

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The Law of the Sea treaty, deep-sixed long ago by the Reagan Administration, has resurfaced and is now steaming toward a ratification vote on the Senate floor.

CENTERFORSECURITYPOLICY: Bottom-of-the-sea treaty

Davies adapted "The Deep Blue Sea" from the 1952 play of the same name by Terence Rattigan as part of the centenary celebration of the late British playwright.

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At the same time, the house opposite his relatives in Little Havana shows a huge picture of the child in the sea, grasping an inner tube, surrounded by porpoises protecting him from the terrors of the deep, with the Virgin Mary behind him and the hand of God stretching down in protection.

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Deep water: area where surface waves are not influenced by the sea-bottom.

UNESCO: L O S S A R Y

And if dead and decomposing bodies aren't your thing you can test your knowledge of the rules of taxonomic nomenclature by suggesting new names for five species of deep-sea worm, recently discovered around hydrothermal vents off Antarctica.

BBC: Forensic science uncovered

The exploits take place on the rusty Norlantean, which has been converted for deep-sea fishing by its skipper, 30-year-old Jason Schofield.

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On Earth, sea-floor spreading is fuelled by molten rock upwelling from deep inside the Earth.

BBC: Enceladus has 'spreading surface'