Police found the bike early this morning under a bridge at Whiskey Bay on the Atchafalaya River, after being tipped off by the fishermen.
Shunick's family members were brought to the scene and confirmed that the bike is Shunick's black and gold Schwinn. Police are not releasing details on the bike's condition.
Police are planning to perform a grid search of the area where the bike was found on ATVs. Officers are searching the Atchafalaya River by boat, but the river's current was too strong to allow for divers this afternoon, police said.
The discovery comes two days after investigators said they found surveillance video showing Shunick on a bicycle the night she disappeared, and they are trying to track down information about a white pickup truck seen on the same video.
The surveillance images appear to corroborate elements of the timeline surrounding Shunick's last known whereabouts because it is believed they show her riding her bicycle home from a friend's house at 1:47 and 1:48 a.m. on Saturday, May 19, as the friend had described.
The images show the bicyclist believed to be Shunick, a senior anthropology major at the University of Louisiana at Lafayette, on St. John Street and St. Landry Street in Lafayette, La.