New Delhi: The River Thames in the United Kingdom, which was declared “biologically dead” in 1957 due to excessive levels of pollution, has improved surprisingly, says a report by the Zoological Society of London (ZSL). .
The river’s tidal wildlife includes seals, seahorses, wading birds, and more. Tope, Starry Smooth-Hound and Spurdog are shark species that have been identified as part of ZSL’s Greater Thames Shark Project. The project began last year and is designed to gather more data on three elusive shark species living in the outlying estuary of the Thames.
ZSL said climate change has increased the temperature of the Thames by an average of 0.2 degrees Celsius per year. Water levels have been rising since monitoring began in the tidal section of the Thames in 1911, averaging 0.17 inches per year at some point since 1990.
“As water temperatures and sea levels continue to rise above historical baselines, estuary wildlife will be particularly affected through changes in species lifecycles and ranges,” ZSL warned in a statement.
The river is home to more than 115 species of fish and 92 species of birds, faces threats from pollution and climate change, the ZSL warned.
Apart from sharks, there are more than 100 species of fish, eels and seals and about 92 species of bird species have been found in the 346 km long river. However, sharks are of particular interest because it is believed that sharks use the estuary to give birth and raise their young, and thus play an important role in the long-term survival of the Thames species.
The River Thames provides drinking water, food, livelihoods and protection from coastal flooding to the surrounding communities.
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