red tide: Media

marine biology

Videos

What causes algae blooms?
Algae blooms can make lakes and oceans look like abstract paintings.
Video: Encyclopædia Britannica, Inc.

Images

red tide
Red tide off the coast of La Jolla, Calif.
P. Alejandro Díaz
red tide
Red tide, Tampa Bay, Florida, showing fish kill and red coloration caused by dinoflagellates.
R.F. Head—The National Audubon Society Collection/Photo Researchers
Red tide washing up on a beach.
© Joy Brown/Shutterstock.com