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In a milestone decision in 2013, CITES prohibited international trade in the fins of the scalloped hammerhead (pictured) and four other shark species. [5] Shark species are increasingly becoming threatened because of commercial and recreational fishing pressures, the impact of non-shark fisheries on the seabed and shark prey species, and other ...
Similar toxic effects occur with the related Pacific sleeper shark, but not in most other shark species. [64] [65] Greenland shark meat is produced and eaten in Iceland where, today, it is known as a delicacy called hákarl. To make the shark safe for human consumption, it is first fermented and then dried in a process that can take multiple ...
The basking shark (Cetorhinus maximus) is the second-largest living shark and fish, [4] after the whale shark. It is one of three plankton-eating shark species, along with the whale shark and megamouth shark. Typically, basking sharks reach 7.9 m (26 ft) in length.
It is commonly referred to as the mako shark, as is the longfin mako shark (Isurus paucus). [1] [4] [5] The fastest known shark species, able to reach speeds of 74 km/h (46 mph) in bursts, the shortfin mako can attain a size of 4 m (13 ft) in length and weigh 570 kg (1,260 lb). The species is classified as Endangered by the IUCN.
The nurse shark genus Ginglymostoma is derived from Greek language meaning hinged mouth, whereas the species cirratum is derived from Latin meaning having curled ringlets. . Based on morphological similarities, Ginglymostoma is believed to be the sister genus of Nebrius, with both being placed in a clade that also include species Pseudoginglymostoma brevicaudatum, Rhincodon typus, and ...
A sawfish, a type of ray related to sharks, is immediately recognizable by its snout, also called a rostrum or saw. Often dubbed "prehistoric," scientists studying fossils say sawfish evolved from ...
The scalloped hammerhead was the first shark species to be protected under the U.S. Endangered Species Act. [25] As of 2021, the scalloped hammerhead has been categorized as Critically Endangered by the IUCN Red List. [26] The IUCN cites overfishing as the main cause for the drop in population numbers. [26]
In 2009, the International Union for Conservation of Nature's IUCN Red List of Endangered Species named 64 species, one-third of all oceanic shark species, as being at risk of extinction due to fishing and shark finning. [177] [178]