This Centers for Disease Control and Prevention (CDC) Health Studies page focuses on cyanobacteria, single-celled organisms thought to be the origin of plants. Cyanobacteria live in fresh, brackish, or marine water and...

This news article details a red tide event that was spread across the Atlantic by a combination of storms in the Sahara Desert region and easterly trade winds that spread fertilized or nutrient overloaded soils to the...

This in-depth site defines sound and describes its measurement, behavior in water, and importance to marine life and humans. Extensive audio gallery includes examples of sound production by invertebrates, fishes, marine...

This highly detailed chemical information page features domoic acid, a toxin associated with Amnesic shellfish poisoning and naturally produced by the red algae Chondria armata and diatoms of the genus Pseudo-nitzschia. ...

This National SeaGrant (PDF) publication discusses Red Tide, Paralytic Shellfish Poisoning (PSP), Domoic Acid, and Amnesiac Shellfish Poisoning (ASP). It includes a description of symptoms as well as a contact number...