Ice floes in Menemsha Pond this winter wiped out four pilings, including two that marked the town line between Chilmark and Aquinnah. The towns hope to reestablish the markers, but meanwhile, the Chilmark selectmen have prohibited scalloping near the center of pond.

Chilmark’s scalloping season was extended two weeks, to April 17, in response to the number of lost fishing days this winter. Aquinnah’s season was cut short in November to protect young scallops.

“There has been somewhat of a brouhaha because Aquinnah has not been going there at all, and there’s some — concern I guess would be a nice way to put it — that the Chilmarkers are going across the line,” selectman Jonathan Mayhew said at the selectmen’s meeting Tuesday. The prohibition is in effect through the end of the scalloping season.

Two of the pilings were private aids to navigation and marked the channel that runs from Vineyard Sound to Menemsha Pond. The other two marked the town line, which divides the pond and channel. Chilmark executive secretary Tim Carroll said Wednesday that some of the pilings were about 35 years old. At least one has already washed up on the beach.

The selectmen voted to work with Aquinnah and possibly a surveyor to replace the pilings. Mr. Carroll said he hoped the work would be finished by May 15. “We have a rule in Menemsha of getting everything done by Memorial Day,” he said.

A stone wall with a diamond-shaped marker had been installed by the shellfish department some time ago, Mr. Carroll said, and was used to sight the two pilings. But town shellfish constable Isaiah Scheffer said Wednesday that the diamond marker has since disappeared. Mr. Scheffer and Aquinnah harbor master Chip Vanderhoop recently surveyed the area on foot.

Mr. Scheffer wasn’t sure how the complaint arose, but agreed that the town line was no longer clear for scallopers. “From the perspective of where the guys were fishing, and where a few of the people in Aquinnah were looking, it was kind of hard to say whether they were over the line,” he said.

“This is the only time it has ever been an issue since I’ve had the job,” the constable added. “For the most part everybody just wants to fish in their town.” He believed any line crossing had been accidental, but also pointed out that most of the remaining adult scallops this year were being found near the center of the pond.

The town line along Boathouse Road in Menemsha, which runs through three small fishing shacks, has caused confusion for years. And when leases came up for renewal in 2013, a dispute arose over the ownership of one of the shacks. At the annual town meetings in both towns last year, voters agreed to move the line, but that will still require an act of state legislature.

Aquinnah town administrator Adam Wilson said Wednesday that he and Mr. Carroll will need to meet with state Rep. Tim Madden to begin that process, but that it may be too late for this year’s legislative session.