Ep 3. Shark Repellent
- October 17, 2015
Innovation Nation season 2 episode 3, titled "Shark Repellent," explores the fascinating world of marine technology and the importance of shark repellent in protecting ocean activities. Host Mo Rocca takes viewers on a journey that showcases various innovative methods that humans use to deter sharks.
The episode begins with a visit to the Florida Aquarium, where scientists have tested several different shark deterrents to protect swimmers and surfers along the state's coastlines. Rocca learns about the effectiveness of magnets, high-frequency sound waves, and chemicals that repel sharks and how they can be used to keep humans safe while also minimizing harm to the ocean's apex predators.
Next, the show takes viewers to a remote island off the coast of Western Australia, where a team of marine biologists is researching the deadly predator known as the great white shark. They're using a unique technique called acoustic pinging, which sends out a signal that repels the sharks without damaging their sensitive hearing. Rocca gets an up-close look at the technology, which is helping scientists better understand and study these creatures in their natural habitat.
Back in the United States, Rocca visits a Navy lab to explore the history of shark repellent. During World War II, the Navy needed to protect the soldiers working in the water from shark attacks, leading them to develop a scent that repels sharks. The show teaches how this research was the basis for a synthetic repellent used by sailors and surfers today.
The episode wraps up with a visit to the Hawaii Institute of Marine Biology, where researchers are developing new ways to protect the coral reefs from damage caused by human activities. Rocca learns about a new technology that utilizes sound waves to stimulate coral growth and prevent invasive species like seaweed from taking over. By protecting the reefs, the team hopes to keep marine ecosystems healthy and thriving for years to come.
Overall, "Shark Repellent" is a fascinating look at the world of marine technology and the importance of preserving our oceans and the creatures that inhabit them. From innovative repellents to cutting-edge research, the episode showcases how humans are working to coexist with sharks and other marine animals while enjoying the benefits that the ocean provides.
