MARION — Shellfish company co-owner Chris Bryant expressed concern at Monday’s Marine Resources Commission meeting that regulations under review by the town could put aquaculture ventures “out of business.’’

Bryant, an owner of Bryant Brothers Shellfish Company in Sippican Harbor, acknowledged he had not been told this formally by anyone in town but had heard “talk’’ to that effect.

Commission chair Vin Malkoski said specific changes have not been decided but he has “not heard that’’ ventures will be forced to close.

Shellfish warden Adam Murphy agreed. “Our department never said that everybody’s going to be out of business,’’ he said.

The bylaw changes being developed follow a large-scale clean-up of Shea Doonan’s aquaculture site that cost the town more than $10,000 last fall.

After the clean-up, the town suspended all applications for new aquaculture licenses until new bylaws were in place.

A working group has been formed to develop the proposed bylaw changes, Malkoski said.

The changes will be brought before the Marine Resources Commission and then will be reviewed by the Board of Selectmen at an open meeting, he said.

“There will be an opportunity to ask questions of the MRC and to the Board of Selectmen,’’ he said.

Bryant said his business has worked well with the town and has even helped to bring in an oyster festival.

Malkoski said the changes were not aimed at any one business in particular, but at the industry in town in general.

He noted that the town was “stuck with’’ the clean-up bill from Shea Doonan’s aquaculture site.

“The town should not be held accountable for cleaning up someone else’s mess,’’ he said.

He said the commission needs to make the best decisions for the town’s natural resources.

“At the end of the day, it’s a limited resource and we’re in charge of managing it,’’ he said. “We need to protect the town.’’

As of now, he said, the specifics of bylaw changes are still being considered, Malkoski said. “It’s pointless to get worked up over things that have not been decided,’’ he said.

Nat Bryant, Chris’ brother and co-owner of the business, said he hoped aquaculture businesses could be kept in the loop about any changes.

The industry, he said, “got creamed’’ by Covid, he said, adding that any additional costs imposed by the town could have a “huge’’ impact on their “bottom line.’’