Beaten 2012 grand finalists East Fremantle are concerned at being significantly weakened when their AFL-listed players join East Perth and Peel from 2014.
But Claremont, while concerned about the process followed to strike the deals, are confident of maintaining a strong WAFL presence without theirs.
Chief executive Adam Kelly said the Sharks, who had 16 AFL-listed players in 2012, were concerned at how they might cope without them.
"To lose that tie is really disappointing," Kelly said.
"I think we had something like eight (AFL-listed players) on grand final day and there's no doubt whatsoever it will have an impact on our ability to be as competitive as we would have been if we stayed under the current arrangement.
"It's just disappointing to think that these guys, some who we see on an infrequent basis and others on a regular basis, will have that association broken.
"They have been terrific for East Fremantle, it's something we really appreciate and I know our members really appreciate the service they give the club.
"It's something that will be hard for us to deal with initially but I guess we have 15 months or so to get ready for it. We have got some work to do to make sure we continue to develop our young talent and have them as ready as possible for 2014."
Claremont chief executive Todd Shimmon said the delisting of some AFL players since the end of last season would help the Tigers - who also had 16 AFL-listed players in 2012 - prepare for the loss of personnel to the Royals and Thunder.
"We have lost about five players off the Eagles list so it won't be as devastating as we previously thought it could be," Shimmon said. "(Lewis) Stevenson has gone to Port Adelaide, (Ryan) Neates, (Gerrick) Weedon, (Anton) Hamp have been delisted and Tom Swift has retired."
Kelly and Shimmon said they were bewildered their clubs had not been consulted more by the West Australian Football Commission ahead of Monday's decision.
"Across the board we are not happy with the way it has been done," Shimmon said.
"This is a major, major change and there are a lot of factors that need to be looked at.
"They said the stakeholders would have their view and we would sit down and go through the process of getting it right.
"We haven't had any consultation. It bewilders me."
Kelly said he was disappointed at the way the process was handled by the WAFL, East Perth and Peel.
"They appointed a consultant back in July to come up with some options and proposals for everyone to look at," Kelly said.
"Basically we weren't looking at a proposal.
"We were just handed a signed deal and expected to live with it.
"Personally, I can't understand how two clubs which are member organisations, haven't consulted with their own members about the future of their clubs.
"It's bewildering to me that they made those decisions without consulting their members and it's something we wouldn't do.
"But they have made their decision and the other seven clubs now have to work together to see what options, if any, we have got as far as the future is concerned."