ST. PETERSBURG, Fla. -- Florida Marlins manager Edwin Rodriguez unexpectedly resigned with his team on a nine-game losing streak, frustrated with his last-place club after less than one year on the job.

Bench coach Brandon Hyde managed the Marlins against the Tampa Bay Rays on Sunday in a 2-1 defeat as Florida lost its 10th straight game. The club will begin a search for an interim manager.

"I can't say enough about the effort that this staff and these players have put into this season," Rodriguez said in a statement released by the team. "I could tell that they continued to give 100 percent effort each and every day on the field. I wish this organization and players nothing but success in their futures."

Hyde and former Marlins manager Jack McKeon, 80, were being considered, sources told ESPN The Magazine's Buster Olney. Nationals third base coach Bo Porter, a former Marlins coach, was also on the list of candidates to consider, a Florida front-office source told ESPN.com's Jayson Stark.

ESPN baseball analyst and former manager Bobby Valentine said he likely wasn't among the possible replacements.

"As far as I know, I'm not a candidate for that job," Valentine told Olney.

Rodriguez was in his first full season as the Marlins' manager. The Marlins would not have made a change if Rodriguez had not resigned, a team source told Stark.

"It's been extremely frustrating for everyone," Florida president of baseball operations Larry Beinfest said. "I think everyone here knows what is going on -- the way we've played, the way we've performed. It's tough on everyone, especially (Rodriguez).

"He communicated with me early this morning that this was something he was thinking about, and when I got to the ballpark we accepted his resignation.