Lesson Plan, Video, Unit


Lessons, resources, and activities to help teachers discuss the environmental disaster of the toxic algae bloom that has overrun Florida\'s southern Gulf Coast this summer, devastating sea life and driving people from the water. 2018 Red tide—a naturally occurring toxic algae bloom that can be harmful to people with respiratory problems— has spread throughout the Gulf of Mexico, drifting in the water since it began in October. Stretching about 150 miles (240 kilometers), it\'s affecting communities from Naples in the south to Anna Maria Island in the north and appears to be moving northward. The algae turns the water toxic for marine life, and in recent weeks beachgoers have been horrified to find turtles, large fish like goliath grouper and even manatees wash up dead. In late July, a 26-foot long (8-meter-long) whale shark washed ashore on Sanibel Island, which is known for its pristine beaches. This week, nine dead dolphins were found in Sarasota County, and marine biologists are investigating whether the deaths are related to red tide. In places like Longboat key, more than 5 tons of dead fish have been removed from beaches—and those are related to the toxic water, officials say.


  • Science > Biology
  • Science > Earth Science
  • Science > General Science
  • Science > Life Sciences
  • Science > Oceanography

Education Levels:

  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Florida, red tide, harmful algae bloom, algae bloom. Lake Okeechobee, environment



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial


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Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 2.7, as of 2018-11-08.

Component Ratings:

Subject Matter: 3
Support Steaching: 2
Deeper Learning: 3

Reviewer Comments:

Support Steaching: The link for NOAA/NCCOS Economic Impacts of Harmful Algal Blooms Fact Sheet cannot be found.

Not Rated Yet.

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