PROVINCETOWN — On a Sunday morning in November, the low tide and lure of fresh foraged food drew many recreational shellfishermen to this season’s designated clamming area, the west side of the dike, known locally as the breakwater. A bit further into the marsh, burrowed in the creek banks, nocturnal purple marsh crabs awaited their time to forage, after dusk and at high tide.
Meanwhile, the West End salt marsh — the host to all this activity — is dying.
