UK’s ‘biologically dead’ Thames are now home to sharks, you’ve been warned

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Sharks have been found in the River Thames in London, said animal conservation organization the Zoological Society of London (ZSL). In 1957, parts of the river were declared “biologically dead,” but it is now home to three types of sharks: the star greyhound, star greyhound and dogfish. The river is also home to 115 species of fish and wildlife from seahorses to seals. This was revealed by ZSL in its “State of the Thames” report which was prepared after a comprehensive review of the waterway from the 1950s to the present day.

Last year, the animal conservation charity launched the “Greater Thames Shark Project”. To present his report, he collected data on endangered shark species that live in the Outer Estuary, a large part of a river where it joins the sea.

In its review of the data collected, ZSL found that the Thames is no longer “nearly lifeless”, even after parts of the river were declared biologically dead 64 years ago. She found that 115 species of fish and wildlife live in the Thames ZSL also found that three types of sharks live there.

While Tope sharks can grow to over 6 feet long and can survive for over 50 years, the other two shark species – the star greyhound and dogfish found in the Thames are smaller and also endangered. .

The International Union for the Conservation of Nature (IUCN), which assesses the risk of extinction of species and subspecies in its Red List of Threatened Species, has classified Tope sharks as critically endangered. in the world. The IUCN has classified the Eastern Greyhound Sharks as Near Threatened and Spurdog has been classified as vulnerable to extinction due to overfishing.

Meanwhile, ZSL has appealed for people who catch a shark with a yellow tag on its fin in the Thames, to record details about the animal on its website.

Although ZSL expressed her joy after finding life forms in the Thames, she warned relevant authorities to take action to save the river from the challenges posed by climate change and pollution. ZSL said the temperature of the Thames is increasing by 0.2 degrees Celsius on average each year.

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