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In 2010 a global IUCN study of vertebrates found that of 1,044 cartilaginous (ray and shark) species examined, 345 or 33% were threatened with extinction. [6] [7] There are four orders of rays: stingrays, skates, electric rays and sawfishes. Like sharks, rays are relatively long living and thrive in stable populations.
Illegal, unreported, and unregulated (IUU) fishing is a pervasive issue in the Indo-Pacific region. Reported catch figures often represent only a fraction of the actual catch, exacerbating the problem of overfishing and depletion of shark and ray populations. Some marine protected areas (MPAs) are also affected by high levels of IUU fishing. [2]
Rising demands for shark products has increased pressure on shark fisheries, but little monitoring or management occurs of most fisheries. [7] Major declines in shark stocks have been recorded over the past few decades; some species had declined over 90% and population declines of 70% were not unusual by 1998. [8]
Great white sharks have survived over 400 million years, but now they may be in deep trouble. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ...
According to a 2021 study published in Nature, 71% of oceanic shark and ray populations have been destroyed by overfishing (the primary driver of ocean defaunation) from 1970 to 2018, and are nearing the "point of no return" as 24 of the 31 species are now threatened with extinction, with several being classified as critically endangered.
While it's a statistical fact that the shark population is shrinking (a 2021 global study published in Nature found the world’s population of oceanic sharks and rays has fallen by 71%) some ...
Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pectoral fins into broad flat wing-like appendages.
The University of Florida’s International Shark Attack File finds that there were a total of 57 shark bites in 2022, marking a 10-year low.