Chesapeake Bay Coastal Bays Rivers and Streams Watersheds
Maryland Department of Natural Resources

Pseudo-nitzschia seriata

Pseudo-nitzschia seriata has been widespread throughout the spring in low densities in the main Bay and lower estuaries of Marylandís Chesapeake Bay.  Diatoms in the genus Pseudo--nitzschia are recognized worldwide as potential producers of the toxin domoic acid. Shellfish feeding on toxic Pseudo-nitzschia can accumulate the poison. Humans consuming the contaminated shellfish can experience Amnesic Shellfish Poisoning (ASP). Cases of ASP have been reported from the western and northeast coast of the North America.  ASP toxin

Learn More About:
Brown Tide
Mahogany Tide
Other Species
Current Blooms
Search HAB News
Report a Bloom
HAB Home
has recently been identified as a problem in the viscera of Dungeness crab, tanner crab, red rock crab, and anchovies along the west coast of the United States. No known cases of ASP in Maryland waters have been recorded.

Search Maryland DNR


Chesapeake Bay | Coastal Bays | Rivers & Streams | Watersheds

Return to the Maryland DNR Home Page.
Your opinion counts! Take a