Police are appealing for information after a young dolphin was killed off the North Cornwall coast on Saturday afternoon.
Marine conservation groups say a pod of dolphins were “harassed” by a group of around 25 vessels after they were spotted swimming in the Camel Estuary.
Following their initial investigations police say the carcass of the animal was found at around 4.45pm on Saturday 20 July at The Rumps, north east of Pentire Point, between Polzeath and Port Quin.
This evening officers have launched an appeal asking anyone who witnessed the incident to come forward.
PC Del Allerton-Baldwin, wildlife crime officer on the Marine and Coastal Policing Team in Bodmin, said: “We would like to get a list of all boats that were in the area at the time.
“They should all have names on them.”
PC Allerton-Baldwin urged boat owners who were in the area on Saturday afternoon to contact the police.
“Many of the boat users were in fact behaving responsibly around the dolphins and keeping a distance of around 100 yards,” he said.
“However a few appear to have been harassing them.
“If you were part of the flotilla, it does not mean you were committing an offence but we would like to speak to you and eliminate you from our enquiries.
“You may also have vital information which may assist with the investigation.”
Meanwhile marine conservation charity Sea Shepherd UK and Bob Archell's Dive Master Insurance are offering a reward totalling £2, 000 for information leading to an arrest and successful conviction of the persons responsible for the animal’s death.
Police are urging anyone with information, photographs or video clips to call 101 quoting 399 of 21/07/13.