Sharks Are Important for Healthy Coral Reefs

Navigate to:

Sharks Are Important for Healthy Coral Reefs

This video is hosted by YouTube. In order to view it, you must consent to the use of “Marketing Cookies” by updating your preferences in the Cookie Settings link below. View on YouTube

This video is hosted by YouTube. In order to view it, you must consent to the use of “Marketing Cookies” by updating your preferences in the Cookie Settings link below. View on YouTube

Where sharks thrive, so do coral reefs. Studies in the Pacific Ocean have found that healthy coral reef systems, with abundant sea life, are dominated by sharks. Meanwhile, in areas where sharks have declined, reefs have been negatively impacted.

In the Caribbean Sea, scientists have found that declining populations of sharks may also cause a drop in parrot fish populations. Herbivorous species like parrot fish are important to the health of coral reefs because they eat algae. Overgrowth of algae harms diversity in coral reef systems. As a result, sharks need protection to maintain a diverse marine environment and healthy coral reefs.

Learn more at http://www.pewenvironment.org/sharks.

America’s Overdose Crisis
America’s Overdose Crisis

America’s Overdose Crisis

Sign up for our five-email course explaining the overdose crisis in America, the state of treatment access, and ways to improve care

Sign up
Quick View

America’s Overdose Crisis

Sign up for our five-email course explaining the overdose crisis in America, the state of treatment access, and ways to improve care

Sign up
Composite image of modern city network communication concept

Learn the Basics of Broadband from Our Limited Series

Sign up for our four-week email course on Broadband Basics

Quick View

How does broadband internet reach our homes, phones, and tablets? What kind of infrastructure connects us all together? What are the major barriers to broadband access for American communities?

Pills illustration
Pills illustration

What Is Antibiotic Resistance—and How Can We Fight It?

Sign up for our four-week email series The Race Against Resistance.

Quick View

Antibiotic-resistant bacteria, also known as “superbugs,” are a major threat to modern medicine. But how does resistance work, and what can we do to slow the spread? Read personal stories, expert accounts, and more for the answers to those questions in our four-week email series: Slowing Superbugs.