US seafood buyers who are plaintiffs in a class action lawsuit alleging Norwegian farmed salmon giants conspired to fix salmon prices in the US market are asking for six more months to review evidence, a move the salmon companies argue unnecessarily delays a decision in the matter.

In a motion filed with a US District Court in Florida on Tuesday, lawyers for the plaintiffs said they cannot complete the required discovery under the current court schedule, which requires the exchange of expert witness summaries or reports on issues of class certification to be completed by Dec.