Discovery video on shark extinction

DiscoveryNetworks has posted the video above to their YouTube Channel. The video focuses on the repercussions of the extinction of sharks as top ocean predators. Researcher Andy DeHart of the National Aquarium points out the impact of the shark finning market on shark popluations but also notes that roughly half of the sharks killed each day as a result of accidental bycatch. DeHart goes on to say that of the roughly 400 species of sharks only 30 species are heavily fished. However, within those thirty species are some of the apex predators which help control stingray and fish populations. DeHart concludes the video discussing how the slow reproductive nature and small number of pups of some shark species also puts them at greater risk for extinction.

Leave a Reply

Your email address will not be published. Required fields are marked *