Question

What is red tide phenomenon ?​

Answer 1

Answer:

Red tide is a phenomenon caused by algal blooms during which algae become so numerous that they discolor coastal waters

Answer 2

Red tide is a phenomenon caused by algal blooms (Wikipedia definition) during which algae become so numerous that they discolor coastal waters (hence the name "red tide"). The algal bloom may also deplete oxygen in the waters and/or release toxins that may cause illness in humans and other animals. Species in the United States that release these harmful toxins include:

Alexandrium fundyense - found along the Atlantic coast from the Canadian Maritimes to southern New England

Alexandrium catenella - found along the Pacific coast from California to Alaska

Karenia brevis - found in the Gulf of Mexico along the west coast of Florida