After days of search-and-rescue efforts, Yeon-Su Kim, an American who had been lost at sea in the Gulf of California along with her husband, has been confirmed dead, the president of Northern Arizona University said in a statement Sunday.Relatives of the Arizona couple said Kim’s body was found Sunday afternoon by a local fishing boat near Puerto Peñasco, Mexico, family friend Lisa Aumack told The Washington Post.Earlier on Sunday, Mexican authorities in Sonora state said they had found a body matching the description of the couple, who were reported missing on Thanksgiving, but they did not confirm it was Kim’s body.People with ATVs offered to drive up and down the coast while scanning the sea, and volunteer pilots were flying above the Gulf of California to spot the missing Americans or the kayak.Her accomplishments and contributions to her academic discipline, our university’s mission, and the broader community were many.”The university also expressed hope that Kim’s husband soon would be found and brought home safely."