October 12th, 2016 — Effective immediately, the Division of Marine Fisheries (DMF) has expanded its recently announced shellfish harvest closures to include all waters south of Cape Cod due to a substantial bloom of a potentially toxic kind of phytoplankton termed Pseudo-Nitzschia.
As a result of the expanded closure, digging, harvesting, collecting and/or attempting to dig, harvest or collect shellfish, and the possession of shellfish, is prohibited in all waters from the Rhode Island border east to Nantucket Sound, including all of Vineyard and Nantucket Sounds and waters surrounding the islands.
This closure complements the state of Rhode Island’s shellfish harvest closures.
Pseudo-Nitzschia can produce domoic acid, a biotoxin that concentrates in filter feeding shellfish. Shellfish containing high concentrations of domoic acid can cause Amnesic Shellfish Poisoning (ASP) with symptoms that include vomiting, cramps, diarrhea and incapacitating headaches followed by confusion, disorientation, permanent loss of short-term memory, and in severe cases, seizures and coma.