A moratorium on the taking of river herring, instituted three years ago because of dwindling stocks, appears set to be extended for another three years.
A decision will not be announced until next Friday, but a public hearing attended by Vineyard fishermen last week made it clear the fishery was still far from recovered.
Paul Diodati, the director of the Massachusetts Division of Marine Fisheries, said there had been some improvement in stocks, but populations were still low.