31.   They claim the densely packed pens pollute the sea bottom and are unsightly.

32.   Those compartments were kept at the same pressure as the sea bottom.

33.   To begin the excavation, Pendergast had to devise a way of working on the sea bottom.

34.   An Albanian ship which sunk in March after colliding with an Italian navy vessel will be raised from the sea bottom by mid-September, Italian news reports said Monday.

35.   At one point it dropped the craft to the sea bottom.

36.   Dozens of endangered sea turtles a year have been ground up by machines that suck sand off the sea bottom.

37.   Engineers raised it from the sea bottom in a risky operation and towed it to shore, where investigators are combing it for clues to the tragedy.

38.   Experts feared it would be difficult to overcome the force of the sediment on the sea bottom, but that posed no difficulty.

39.   In the south, where currents do run, they say the sea bottom is so deep it is unlikely that fishing nets would scoop up missiles.

40.   It inhabits the sandy sea bottom of the gulf, said Chulalongkorn biologists, who identified it as a new species.