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  • 18 Sep 2021
    According to the International Union for Conservation of Nature (IUCN), more than a third of sharks and rays on Earth are endangered. Earlier reports by the group claimed the loss was mostly due to overfishing and ocean pollution.  The latest IUCN Red List includes a reassessment of the world's shark and ray species, which finds 37% are in danger of going extinct. It shows there are few effective management measures in place for much of the world's oceans. Sharks and rays are being overfished. 31 percent of these species are in danger due to habitat loss and climate change.". RBGS Kew's Eimear Nic Lughadha says reassessing sharks and rays is important for maintaining the value of the Red List as a barometer of biodiversity. While shark and ray statistics are strikingly similar to those for plants, habitat loss and degradation pose the greater threat of extinction than climate change." Red List of Threatened Species includes 138,374 species, of which 38,543 are deemed threatened with extinction. Researchers published a new study, published in Current Biology, that found that 32% of chondrichthyes species were at risk for extinction, including sharks and rays. "That statistic increases to more than one-third (37.5%) if Data Deficient species are assumed to be threatened in the same proportion as assessed species," the IUCN SSC Shark Specialist Group said in a post following the news. Chondrichthyes have lived on Earth for hundreds of millions of years and three species have not been seen in nature for several decades, according to the Smithsonian Magazine.  That said, the species are considered to be exceptionally susceptible to overfishing because they tend to grow slowly and produce few offspring and pollution and habitat degradation are key risks.  Climate change currently impacts 10.2% of threatened chondrichthyes, the IUCN's shark group said.  Despite countless commitments to improve the management of fisheries in the tropics, too many of these inherently vulnerable species have been heavily fished for more than a century by a variety of fisheries that remain poorly managed," Colin Simpfendorfer, adjunct professor at James Cook University, said in a statement. "As a result, we fear we will soon confirm that one or more of these species has been driven to extinction from overfishing, a deeply troubling first for marine fishes. Our goal is to make this study a turning point in efforts to prevent further irreversible losses and secure long-term sustainability."
    259 Posted by UniqueThis
  • According to the International Union for Conservation of Nature (IUCN), more than a third of sharks and rays on Earth are endangered. Earlier reports by the group claimed the loss was mostly due to overfishing and ocean pollution.  The latest IUCN Red List includes a reassessment of the world's shark and ray species, which finds 37% are in danger of going extinct. It shows there are few effective management measures in place for much of the world's oceans. Sharks and rays are being overfished. 31 percent of these species are in danger due to habitat loss and climate change.". RBGS Kew's Eimear Nic Lughadha says reassessing sharks and rays is important for maintaining the value of the Red List as a barometer of biodiversity. While shark and ray statistics are strikingly similar to those for plants, habitat loss and degradation pose the greater threat of extinction than climate change." Red List of Threatened Species includes 138,374 species, of which 38,543 are deemed threatened with extinction. Researchers published a new study, published in Current Biology, that found that 32% of chondrichthyes species were at risk for extinction, including sharks and rays. "That statistic increases to more than one-third (37.5%) if Data Deficient species are assumed to be threatened in the same proportion as assessed species," the IUCN SSC Shark Specialist Group said in a post following the news. Chondrichthyes have lived on Earth for hundreds of millions of years and three species have not been seen in nature for several decades, according to the Smithsonian Magazine.  That said, the species are considered to be exceptionally susceptible to overfishing because they tend to grow slowly and produce few offspring and pollution and habitat degradation are key risks.  Climate change currently impacts 10.2% of threatened chondrichthyes, the IUCN's shark group said.  Despite countless commitments to improve the management of fisheries in the tropics, too many of these inherently vulnerable species have been heavily fished for more than a century by a variety of fisheries that remain poorly managed," Colin Simpfendorfer, adjunct professor at James Cook University, said in a statement. "As a result, we fear we will soon confirm that one or more of these species has been driven to extinction from overfishing, a deeply troubling first for marine fishes. Our goal is to make this study a turning point in efforts to prevent further irreversible losses and secure long-term sustainability."
    Sep 18, 2021 259