Next Up. Scientific name: Sphyrnidae (Sphyrna mokarran – Great Hammerhead) Conservation Status: Endangered. They tend to live the most often through the continental shelves and the coastlines. The scalloped hammerhead isn’t the only species which creates schools: The smooth hammerhead (Sphyrna zygaena) also travels in groups. Fisheries data comparing 2019 with 2018 suggests the numbers of scalloped hammerhead sharks are continuing to fall in Queensland, Australia, with commercial gillnet fishers reporting fewer catches. Shark Culling. In six years (2012-2018), 592 hammerheads sharks have been culled at an average of 99 per year (6). Posted on October 11, 2020 | by . Its highly migratory nature, slow growth, and lengthy gestation period place this common bycatch species at risk to fishing practices on the high seas, at oceanic congregation sites, and throughout coastal birth zones. Like the many large coastal shark species, the scalloped hammerhead has seen population declines of over 95 percent in the last 30 years — mind-boggling given sharks … In December 2019, the global status of scalloped hammerheads was escalated from endangered to critically endangered on the IUCN Red List . Removing sharks in large numbers can have ripple effects that throw entire ecosystems out of balance. (© Jeff Rotman/jeffrotman.com) HAMMERHEAD SHARK FACTS. It can grow up to 20 feet in length and weigh up to 1,000 pounds, although smaller sizes are more common. There are 9 known species of Hammerhead sharks that range from 0.9 to 6 metres (3 to 20 feet) in length. The Amazing World of Sharks. Hammerhead sharks are also threatened by culling through lethal shark control programs. The widely spaced eyes, nostrils, and other senses allow the scalloped hammerhead to more successfully locate its prey near, or buried in, the sea floor. Today is Shark Awareness Day! Hammerhead sharks have never been involved in a fatal incident. The Scalloped hammerhead is a circumglobal shark species native to coastal warm temperate and tropical seas. Lifespan: 20-30 years. The great hammerhead is the largest of the nine identified species of this shark. Along with the great hammerhead, smooth hammerhead, and several unrelated species of sharks, scalloped hammerheads were listed on Appendix II of … The Explorers Club went live on Facebook to do a deep dive on the importance of sharks … They can be observed cruising over reefs and boulder-strewn slopes. Hammerhead Shark Distribution. Photo by: Gerard Soury Gerard Soury. how many hammerhead sharks are left in the world 2020. Given the fact, that about 1.3-2.7 million S. zygaena or S. lewini (biomass 49,000-90,000 t) annually are reported to be found in the shark fin trade (Clarke et al. Hammerhead sharks are most common near Wolf Island and Darwin Islands in the north of the archipelago.Galapagos is one of the last remaining places where large schools of scalloped hammerhead sharks can be observed. SCALLOPED HAMMERHEAD SHARK, Sphyrna lewini, Sphyrnidae, Red Sea, Egypt. Shark Finning: Sharks Turned Prey A fisherman holds a freshly cut dorsal fin from a scalloped hammerhead shark (Sphyrna lewini). There are nine species of hammerhead sharks … Every year, humans kill an estimated 100 million sharks. Large numbers of them have been identified around Cocos Island close to … Like all hammerhead sharks, the scalloped hammerhead is an active predator and gains several advantages from the shape of its head. Despite great efforts to look for an actual value of global population of scalloped hammerhead sharks, Sphyrna lewini, I could not find any relevant publication. Hammerhead Sharks are found in many bodies of water around the world that are warm. Mass: Up to 450 kg (1000 lbs) Length: 6.1 m (20ft) More About Hammerhead Sharks.
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