Lake Tashmoo, which had been closed to shellfishing because of a rare toxic algae bloom, reopened Friday morning.

A press release from the town of Tisbury said that the state notified shellfish constable Danielle Ewart on Friday morning to say that additional testing indicated the pond had been cleared and that it could be reopened to shellfishers immediately.

Ms. Ewart discovered the bright pink algae bloom called prorocentrum lima in the outside flats of Lake Tashmoo a few weeks ago. The algae has been associated with diarrheal shellfish poisoning.

The lake was closed to shellfishing on Wednesday, June 11, and town officials said at the time that people should not eat any shellfish harvested from the lake.