Blog Tags: Threatened Sharks
We often tell you about the threats facing sharks globally -- finning, bycatch, overfishing -- but we don’t regularly shine a spotlight on the individual species affected.
To continue our ongoing shark-themed posts in honor of Shark Week, here are 10 of the most threatened shark species in the world:
1. Basking sharks are the second largest shark, easily distinguished by their huge, filter-feeding mouths. Basking sharks are caught in target fisheries around the world for their oil, meat and fins, and they are also caught as bycatch in other fisheries.
2. Blue sharks are one of the most previously abundant shark species. Now they are the most heavily fished shark in the world. An estimated 10-20 million individuals are killed by fisheries annually, mostly as bycatch. Blue shark meat is beginning to replace swordfish in many Mediterranean countries and the fins are commonly used in shark fin soup.
3. Deep-sea sharks have huge livers that contain high amounts of oil to regulate their buoyancy at depths. As a result, they are caught by deep-sea trawls, gillnets and longlines for an oily substance found in their livers called squalene. Squalene, or its derivative squalane, is found in many cosmetic products.
- Ocean Roundup: Tiny Clownfish Can Swim for 250 Miles, Sydney Harbor May Turn Tropical, and More Posted Thu, September 18, 2014
- Congress Advances Legislation to Fight Pirate Fishing, Keep Illegally-Caught Seafood Out of U.S. Market Posted Fri, September 19, 2014
- Sharks and Rays Gain International Protection under CITES Listing Posted Sun, September 14, 2014
- Photos: Oceana Launches Expedition to El Hierro Island and Atlantic Seamounts Posted Thu, September 18, 2014
- Ocean Roundup: Shark-Eating Dinosaur Fossils Discovered, Germany Paving Way for Cheaper Wind Energy, and More Posted Mon, September 15, 2014