A bottle-nosed dolphin was seen swimming in an inland freshwater river in central New Jersey. The Marine Mammal in South River (MMSC) wowed spectators in Old Bridge, New Jersey, for nearly 24 hours and it was for the first time that the dolphin was caught on video.

Herrick said he is quite worried about the creature. He posted the video online with a caption 'Dolphin stranded in Raritan River tributary'. By posting the video, he hoped that the video grabs the attention of authorities who could help to rescue it.

MMSC technicians from Bigantine, New Jersey Marine Mammal Stranding Center technicians from Bigantine, New Jersey, were present at the site on Thursday. They were using an electronic underwater nuisance device to sends noise to the dolphin so that they can coax the dolphin out, the center's founding director Robert Schoelkopf said.

Schoelkopf also stated that the dolphin for sure doesn't belong to the freshwater river and it is an out-of-habitat situation. "The location is so remote and dangerous that we can't put any of our people in it. There are no banks on side of river, it just drops down and river is covered with broken concrete and metal bars".

He said the dolphin doesn't appear to be feeding and could be a senior. He has seen cases in past where dolphins were so old that they move out of the ocean going up a creek, where they ended their lives. The South River is connected to the Raritan River, which flows into the Atlantic Ocean.