Shellfishing can resume at sunrise on Friday in some western areas of Shinnecock Bay that were shut on May 7 after a naturally occurring biotoxin was found, state officials said Thursday.

Since late March, more than 85 shellfish samples have been tested for the biotoxin, saxitoxin, which causes paralytic poisoning, the state Department of Environmental Conservation said in a statement. About 20 of these samples came from Shinnecock Bay.

The harvesting of clams, mussels and oysters still will be barred in about 315 acres in a cove outside the mouth of Weesuck Creek, the department said.

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StoryOfficials: Shellfish ban in parts of E. End StoryDEC: Temporary shellfish ban in town waters

Similarly, conch, whelk and other members of the carnivorous gastropod family cannot be harvested in the section of Shinnecock Bay that lies west of the southbound lanes of the Ponquogue Bridge and east of the Post Lane Bridge in Quogue, the agency said.

For more information on temporary emergency shellfish closures and maps of the affected areas, visit the DEC website, www.dec.ny.gov/outdoor/7765.html. A recorded message may be heard by calling 631-444-0480.