"Normally speaking, when it's an issue of pest control it will be done by government agencies and they will do it in a professional manner - what you are seeing here is a lot of amateur shooters herding up animals, frightening them and then shooting them."
Mr Kriek could not see the point in killing a few hundred out of a couple of thousand swans.
"It's not going to make too much of a difference. And the fact is that our waterways are threatened much more by dairy runoff than by those swans."
He said it would be good for people to put pressure on the council and local Fish and Game representatives to stop the event. Brian Samson, vice-president of Western Bay of Plenty Fish and Game Club, said the shoot had traditionally been kept low-key.
"We go out as a bunch of like-minded individuals having a great day. We enjoy being successful and a job well done, but anybody who enjoys killing for the sake of killing has no place in our organisation."
Black swans have been the subject of regular complaints for leaving faeces on beaches and mud flats, posing aviation hazards at Tauranga Airport and threatening seagrass meadows through consumption.
Fish and Game had a responsibility to keep populations to a "manageable size", manager Rob Pitkethley said.
"This group of hunters operates within all the rules and regulations, and they are expected to adhere to our game-bird hunting code of conduct," he said.