A California-class Starfleet ship under the Tellarite Captain Durango, wrecked in 2380 when terraforming fluid from an ancient generation ship turns its interior into rock and jungle, and later repaired.
The USS Merced is a sister ship of the Cerritos in Star Trek: Lower Decks, named after a city in California. She appears in the first-season episode Moist Vessel under Captain Durango, a Tellarite.
In 2380 the Merced and the Cerritos are sent to tow an ancient generation ship full of a potent terraforming fluid. Durango, keen to outshine Captain Freeman, changes the towing plan without telling her. The old ship is damaged and the fluid sprays across both vessels, turning decks into rock, water and vegetation. The Merced is overwhelmed and her crew have to be taken off; the Cerritos is saved by Freeman and Mariner working together.
The ship is eventually put back into service. In The Stars at Night she is among the California-class ships that answer Mariner's call and come to the aid of the Cerritos against the Aledo.