Chinese Paddlefish and Wild Yangtze Sturgeon Extinct

 A file photo from April 29, 2007, shows a marine official recovering a dead Chinese sturgeon in the Yangtze River. (Reuters)
A file photo from April 29, 2007, shows a marine official recovering a dead Chinese sturgeon in the Yangtze River. (Reuters)
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Chinese Paddlefish and Wild Yangtze Sturgeon Extinct

 A file photo from April 29, 2007, shows a marine official recovering a dead Chinese sturgeon in the Yangtze River. (Reuters)
A file photo from April 29, 2007, shows a marine official recovering a dead Chinese sturgeon in the Yangtze River. (Reuters)

The extinction of the Chinese Paddlefish and wild Yangtze Sturgeon, declared by the International Union for Conservation of Nature (IUCN), unleashed a torrent of comments on China's social media platforms on Friday urging more environmental protection.

The IUCN's latest list of threatened species, published on its website on Thursday, showed that 100% of the world's remaining 26 sturgeon species are now at risk of extinction, up from 85% in 2009.

"The assessments are based on new calculations which show their decline over the past three generations to be steeper than previously thought," the conservation group said, adding that the reassessment had also confirmed the extinction of the Chinese Paddlefish.

Both the Chinese Paddlefish and the Yangtze Sturgeon were common species in the Yangzte river basin which has been plagued by heavy shipping traffic, overfishing and water pollution.

The topic was one of the most discussed on China's Weibo, a social media platform similar to Twitter, on Friday.

"A biological population that lived for 150 million years was actually made extinct by modern civilization? I want to ask: where is our civilization?" one user called Snow Mountain said.

The Chinese Paddlefish was one of the world's biggest fresh water fish species and could grow up to 7 meters (yards) in length. The IUCN first declared it "critically endangered" in 1996.

The Yangzte Sturgeon, which could grow up to 8 meters (yards), was highly sensitive to increased noise on the river. Its meat was considered a delicacy in China and it was also fished as a source of caviar.

The country has a breeding program for the sturgeons but has not been successful at maintaining them in the wild. China implemented a fishing ban in some parts of the Yangzte river in 2021.

"Everyone, support the ban on fishing in the Yangtze River, and protect the habitats that are still in the Yangtze River," a user called Lychee said.



Croatia's Scientists Seek to Ward Off Threat to Posidonia Seagrass

Salema porgy swim near seagrass in the protected area of France's Porquerolles National Park ahead of the UN Ocean Conference on Friday, June 6, 2025. (AP Photo/Annika Hammerschlag)
Salema porgy swim near seagrass in the protected area of France's Porquerolles National Park ahead of the UN Ocean Conference on Friday, June 6, 2025. (AP Photo/Annika Hammerschlag)
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Croatia's Scientists Seek to Ward Off Threat to Posidonia Seagrass

Salema porgy swim near seagrass in the protected area of France's Porquerolles National Park ahead of the UN Ocean Conference on Friday, June 6, 2025. (AP Photo/Annika Hammerschlag)
Salema porgy swim near seagrass in the protected area of France's Porquerolles National Park ahead of the UN Ocean Conference on Friday, June 6, 2025. (AP Photo/Annika Hammerschlag)

At Croatia’s Dugi Otok island in the Adriatic Sea, scientists, demanding action to protect environmentally important meadows of seagrass, have been on a diving mission to assess the damage inflicted by human activity.

Named after Poseidon, the ancient Greek god of the sea, Posidonia oceanica, commonly known as Mediterranean tapeweed, provides food and shelter for fish, protects coasts from erosion, purifies sea water and can play a vital role in helping to tackle global warming.

A meadow of Posidonia can annually soak up to 15 times more carbon dioxide than a similar sized piece of the Amazon rainforest, scientific research has found.

But the scientists say much more needs to be done to protect it from tourist anchoring and from trawlers dragging fishing nets in the waters of the Adriatic Sea off Dugi Otok and the surrounding Kornati archipelago national park.

They have urged tougher regulations and fines for anyone breaching them.

Dominik Mihaljevic, a biologist at the national park, said the park had begun to install anchorages that would not harm the seagrass.

"Our ultimate goal is to completely prohibit anchoring at the 19 anchorage locations that are currently in use," Reuters quoted him as saying.

Matea Spika, a senior associate at Croatia’s Sunce environmental protection association, told Reuters Mediterranean Posidonia, endemic to the Mediterranean Sea, had declined by 30% in the last 30-to-40 years.

Apart from the issue of anchors and fishing nets, she said chemicals, excess nutrients from farms and cities, warmer waters due to climate change, and invasive species had caused further damage.

New ports and artificial beaches have also blocked sunlight essential for Posidonia’s growth.