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The Vermeil Room was originally a staff work room used for storage and later for the tasks of polishing silver. Theodore Roosevelt's 1902 renovation of the White House by architect Charles Follen McKim reconfigured the use of the house, finishing much of the ground floor for public use.
The thermocline is important when trying to locate fish because it is the depth that is most comfortable for the fish. The thermocline is the comfort zone for the fish because it contains the coolest water that has abundant oxygen and prey. The light penetration at the thermocline level is also improved.