text:  and extreme heat is also affecting the oceans. Marine heat waves are disrupting fisheries on U.S. coasts, as shellfish and other economically important species struggle to survive in abnormally warm water. Rebecca Herscher, NPR News. Stocks assume their record run-ups on Wall Street today. The Dow is up 67 points. The Nasdaq rose 164 points. You're listening to NPR News in Washington.