One-third of shark and ray fish have been crushed to extinction, according to an eight-year scientific study.
“These shiny fish are the driving forces behind the coal mining of large-scale fishing. If I tell you that three-quarters of the hot beaches are threatened, just imagine David Attenborough listing 75% of those who ate left. If there are fewer fish, there is a serious problem with fishing, ”says Nicholas Dulvy, editor of the paper, Simon Fraser University of Canada.
The health of “all marine life” and food security are at stake, “said Dulvy, a former chair of the shark experts’ team. International Convention on Conservation of Nature (IUCN).
The number of fish species, shiny, and migratory, known as chondrichthyan fish, which are facing a “global extinction problem” has also increased by more than a decade, according to the September 6 issue of this journal. Modern Biology.
The moon is the most endangered, while 41 percent of the 611 species listed are at risk; 36 percent of the 536 species of fish are endangered; and 9 percent of the 52 species of malt.
Dulvy said: “Our research reveals a growing risk, and these species are now one of the most dangerous, second only to the most endangered amphibians.”
“The proliferation of these sharks, especially sharks and sharks, is endangering the health of all marine life and food security in many countries around the world,” he said.
This is the second review since 2014, and it comes after a survey in January was found Shark and ray people have been affected by more than 70 percent in the last 50 years, and endangered species such as the endangered hammerhead shark.
Sharks, sharks, and mammals are at risk of overfishing because they grow slowly and produce small offspring. It was to compare that 100 million fish are killed by humans each year, which reduces their reproductive capacity. Fishing in the industry was a “major threat” to chondrichthyans, either alone or in combination with other fish, the authors said.
Many of these fish and radiation are taken “unknowingly,” but can be “illegal” in many fisheries, the report said, and they are kept for feeding and feeding animals. The authors said, habitat damage, climate change, environmental degradation.
The species is particularly endangered in tropical waters, especially in countries such as Indonesia and India, experts have found, due in large part from the large coastline comprised of many unregulated fish, often driven by the importance of valuable resources such as fins.
According to the report, the Chondrichthyans have survived at least five times in their history. However, at least three species are now at high risk and possibly extinct. Java stingaree has not been recorded since 1868, the Red Sea torpedo ray since 1898, and the lost South China Sea shark have not existed since 1934. Their disappearance would be the first in the world for marine life due to overfishing.
Colin Simpfendorfer, associate professor at James Cook University in Queensland, Australia, states: “In the tropics there is a great diversity of species of fish, but many species have been fishing for over 100 years with many different species of fish mismanaged. , although there were many changes.
“As a result, we fear that we will soon confirm that one or more of these species have become extinct as a result of overfishing – which is a serious problem for freshwater fish,” he said. “We will work to make this research a testing ground in an effort to avoid irreversible shortcomings and to ensure long-term safety.”