Resultado de búsqueda
Learn about the over 1,000 species of sharks and rays, their importance for marine ecosystems, and the threats they face from overfishing, demand for fins, and bycatch. Find out what WWF is doing to protect these top predators and how you can help.
27 de ene. de 2021 · The scalloped hammerhead is critically endangered. Scientists say sharks and rays are disappearing from the world's oceans at an "alarming" rate. The number of sharks found in the open oceans has...
27 de ene. de 2021 · Nature - The global abundance of oceanic sharks and rays has decreased by 71% since 1970 and 24 species are threatened with extinction owing to a concomitant increase in fishing pressure.
Learn about the great white shark, the world's largest predatory fish, and why it is at risk of extinction due to overfishing and hunting. Find out what WWF is doing to protect this endangered species and how you can help.
8 de sept. de 2021 · A new study shows that more than one-third of these fish are at risk of extinction due to overfishing, habitat loss, and climate change. WWF urges governments and fisheries bodies to take action to stop overfishing and protect these vital ocean predators.
20 de ene. de 2014 · A quarter of the world’s sharks and rays are threatened with extinction according to The IUCN Red List of Threatened Species™, with ray species found to be at a higher risk than sharks. The findings are part of the first ever global analysis of these species carried out by the IUCN Shark Specialist Group (SSG).
24 de jun. de 2009 · Porbeagle Sharks ( Lamna nasus) are classified as globally Vulnerable, but Critically Endangered and Endangered in the Northeast and Northwest Atlantic, respectively. The Blue Shark ( Prionace glauca ), the world’s most abundant and heavily fished open ocean shark, is classified as Near Threatened.
