* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, May 28, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Drew Brees opens Surge Entertainment Center in Metairie hot spot for new businesses – NOLA.com

    Drew Brees Unveils Exciting New Surge Entertainment Center in Metairie!

    Will Gio Stay Or Go On May 27 General Hospital? – Yahoo

    Will Gio Make a Shocking Exit on May 27th’s General Hospital

    First look: Disney shows star villains, Little Mermaid, tech – Yahoo

    Unveiling Disney’s Dark Side: A Sneak Peek at Iconic Villains, The Little Mermaid, and Cutting-Edge Technology!

    Fans Call Out Disney For Cutting Favorite ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry’ – Yahoo

    Disney Fans Heartbroken Over the Cut of Beloved ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry

    Oh My Girl’s sister group USPEER from WM Entertainment introduces individual members with high-energy clips for ‘Speed Zone’ debut – allkpop

    Get Ready to Meet USPEER: Oh My Girl’s Sister Group Unveils Dynamic Members in ‘Speed Zone’ Debut Clips!

    Ways to save money on entertainment and travel this summer – CBS News

    Smart Strategies to Slash Your Summer Entertainment and Travel Costs!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    MSE, DXC Technology expand tech partnership – Sports Business Journal

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    Technology Driving Performance: How Elite MA Plans Leverage Data, Care Coordination, and Advanced Analytics to Thrive Amid CMS’s Rigorous 2025 Standards, Black Book – Newswire.com

    Unlocking Success: How Top MA Plans Harness Data and Analytics to Excel Under CMS’s 2025 Standards

    Arqit acquires Ampliphae’s technology IP, enhancing its global encryption portfolio – GlobeNewswire

    Arqit Boosts Global Encryption Portfolio with Strategic Acquisition of Ampliphae’s Technology IP

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    Wireless Connectivity Technology Market Set to Witness – openPR.com

    Exploring the Future: Wireless Connectivity Technology Market Poised for Remarkable Growth!

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Drew Brees opens Surge Entertainment Center in Metairie hot spot for new businesses – NOLA.com

    Drew Brees Unveils Exciting New Surge Entertainment Center in Metairie!

    Will Gio Stay Or Go On May 27 General Hospital? – Yahoo

    Will Gio Make a Shocking Exit on May 27th’s General Hospital

    First look: Disney shows star villains, Little Mermaid, tech – Yahoo

    Unveiling Disney’s Dark Side: A Sneak Peek at Iconic Villains, The Little Mermaid, and Cutting-Edge Technology!

    Fans Call Out Disney For Cutting Favorite ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry’ – Yahoo

    Disney Fans Heartbroken Over the Cut of Beloved ‘Lilo & Stitch’ Character: ‘It Makes Me Want to Cry

    Oh My Girl’s sister group USPEER from WM Entertainment introduces individual members with high-energy clips for ‘Speed Zone’ debut – allkpop

    Get Ready to Meet USPEER: Oh My Girl’s Sister Group Unveils Dynamic Members in ‘Speed Zone’ Debut Clips!

    Ways to save money on entertainment and travel this summer – CBS News

    Smart Strategies to Slash Your Summer Entertainment and Travel Costs!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    MSE, DXC Technology expand tech partnership – Sports Business Journal

    MSE, DXC Technology expand tech partnership – Sports Business Journal

    Technology Driving Performance: How Elite MA Plans Leverage Data, Care Coordination, and Advanced Analytics to Thrive Amid CMS’s Rigorous 2025 Standards, Black Book – Newswire.com

    Unlocking Success: How Top MA Plans Harness Data and Analytics to Excel Under CMS’s 2025 Standards

    Arqit acquires Ampliphae’s technology IP, enhancing its global encryption portfolio – GlobeNewswire

    Arqit Boosts Global Encryption Portfolio with Strategic Acquisition of Ampliphae’s Technology IP

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    Searenergy partners with Tethys Robotics on subsea inspection technology – Windtech International

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    China successfully tests new-gen satellite-to-ground data transmission technology – Global Times

    Wireless Connectivity Technology Market Set to Witness – openPR.com

    Exploring the Future: Wireless Connectivity Technology Market Poised for Remarkable Growth!

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home News

Several reef sharks at greater threat of extinction than thought, study shows

June 18, 2023
in News
Several reef sharks at greater threat of extinction than thought, study shows
Share on FacebookShare on Twitter
  • A new study found that five key reef shark species — gray, blacktip, whitetip and Caribbean reef sharks, and nurse sharks — declined by 60-73% worldwide.
  • It also indicated that all five species would qualify as endangered on the IUCN Red List.
  • Early results from the study were used to escalate the status of two of the five species to endangered, but the others are still considered to have a lower extinction risk.
  • The study also showed that well-governed or protected reefs had healthier shark populations.

New research has found that five key shark species found in reef habitats are at higher risk of extinction than previously thought, mainly due to overfishing.

Published in Science, the study indicates that gray reef sharks (Carcharhinus amblyrhynchos), blacktip reef sharks (Carcharhinus melanopterus), whitetip reef sharks (Triaenodon obesus), nurse sharks (Ginglymostoma cirratum) and Caribbean reef sharks (Carcharhinus perezi) declined by 60-73% across the world. As these sharks have disappeared from reefs, rays have begun to take over, except in places where both sharks and rays are being depleted, according to the study.

This research builds upon a 2020 study in Nature that found that sharks were “functionally extinct” from about 20% of the world’s coral reefs.

“That [Nature] study basically grouped all of the sharks that occur on coral reefs together in one group and looked at what was going on,” Colin Simpfendorfer, lead author of the new study and adjunct professor of marine and aquaculture science at James Cook University in Australia, told Mongabay. “What we’ve done with this study is we’ve actually broken it down into individual species so we could look at what is happening to communities of sharks and rays.”

A reef shark visiting a baited underwater video station in the Caribbean. Image by Global Fin Print.

Early results of the study were used to update the status of four of the shark species on the IUCN Red List: the gray reef shark and Caribbean reef shark are now listed as endangered, and the blacktip reef shark and the whitetip reef shark are listed as vulnerable. However, the study indicates that all five of the main shark species would actually qualify as endangered on the IUCN Red List.

“We’ll be continuing to work with [the IUCN] to see if we can get these other ones updated to endangered as well,” Simpfendorfer said.

The results of this study were based on 22,000 hours of video footage from baited underwater video stations at 391 reef locations in 67 nations and territories. The authors found that fishing was the main reason for declining reef shark species.

“Sharks have a very vulnerable life history,” Simpfendorfer said. “They don’t reproduce very quickly, and so when you start to fish them out, they decline very quickly and recover very slowly.”

While the study indicates a sharp decline in reef shark species, it also shows that reefs protected or governed with strong fisheries management had healthier shark populations. The study also notes that an overfished reef at one location doesn’t necessarily impact other reefs a short distance away.

“People need healthy coral reefs,” Mike Heithaus, co-author of the study and executive dean of the College of Arts, Sciences & Education at Florida International University, said in a statement. “We are seeing that when sharks disappear, that causes other changes in these ecosystems. Keeping shark populations healthy, or rebuilding them, is important for maintaining their roles for healthy reefs.”

Banner image caption: A blacktip reef shark swims among smaller fish in the Maldives. Image by Peter Smithson via Flickr (CC BY-NC-SA 2.0).

Elizabeth Claire Alberts is a senior staff writer for Mongabay. Follow her on Twitter @ECAlberts

Sharks are ‘functionally extinct’ in many global reef systems, study finds

Citations:

Simpfendorfer, C. A., Heithaus, M. R., Heupel, M. R., MacNeil, M. A., Meekan, M., Harvey, E., … Chapman, D. D. (2023). Widespread diversity deficits of coral reef sharks and rays. Science, 380(6650), 1155-1160. doi:10.1126/science.ade4884

MacNeil, M. A., Chapman, D., Heupel, M., Simpfendorfer, C. A., Heithaus, M., Meekan, M., … Cinner, J. E. (2020). Global status and conservation potential of reef sharks. Nature, 583(7818), 801-806. doi:10.1038/s41586-020-2519-y

Endangered, Endangered Species, Fish, Fisheries, Fishing, Marine Animals, Marine Conservation, Marine Ecosystems, Overfishing, Sharks, Sharks And Rays, Species

Print

Read More

Tags: newsSeveralsharks
Previous Post

Southern African caterpillar that feeds millions may be next climate casualty

Next Post

Egyptian Suspects Detained Following Migrant Shipwreck in Greece

May 15 – Ecology proposes new updates to help industry transition to clean semi-trucks – Washington State Department of Ecology (.gov)

Ecology Unveils Exciting New Updates to Accelerate the Shift to Clean Semi-Trucks!

May 28, 2025
Earth’s core is ‘leaking’ gold, study finds – Live Science

Unlocking Earth’s Secrets: New Study Reveals Gold is ‘Leaking’ from the Core!

May 28, 2025
Reading Science Center awarded $175,500 Neighborhood Assistance Tax Credit to double education space – Berks Weekly

Reading Science Center Secures $175,500 Tax Credit to Expand Educational Space!

May 28, 2025

Want to Live Long? Lifestyle Matters More Than Genes – Time Magazine

May 28, 2025
This City Was Named the World’s Fastest-growing Wealth Hub With 156 Centimillionaires and 22 Billionaires – Travel + Leisure

This City Was Named the World’s Fastest-growing Wealth Hub With 156 Centimillionaires and 22 Billionaires – Travel + Leisure

May 28, 2025
Five Things We Learned About…The Creator Economy From D&AD Festival – Creative Salon

Unlocking Insights: Five Key Takeaways on the Creator Economy from D&AD Festival

May 28, 2025
New Portland entertainment venue to begin construction in June – KGW

Exciting New Entertainment Venue Set to Break Ground in Portland This June!

May 28, 2025
Can domestic financing solve the global health funding crisis? – Devex

Can domestic financing solve the global health funding crisis? – Devex

May 28, 2025
Brian Hughes to become NASA Chief of Staff – Florida Politics

Brian Hughes Takes the Helm as NASA’s New Chief of Staff!

May 28, 2025
MSE, DXC Technology expand tech partnership – Sports Business Journal

MSE, DXC Technology expand tech partnership – Sports Business Journal

May 28, 2025

Categories

Archives

May 2025
MTWTFSS
 1234
567891011
12131415161718
19202122232425
262728293031 
« Apr    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (647)
  • Economy (660)
  • Entertainment (21,567)
  • General (15,246)
  • Health (9,702)
  • Lifestyle (663)
  • News (22,149)
  • People (662)
  • Politics (668)
  • Science (15,883)
  • Sports (21,167)
  • Technology (15,648)
  • World (648)

Recent News

May 15 – Ecology proposes new updates to help industry transition to clean semi-trucks – Washington State Department of Ecology (.gov)

Ecology Unveils Exciting New Updates to Accelerate the Shift to Clean Semi-Trucks!

May 28, 2025
Earth’s core is ‘leaking’ gold, study finds – Live Science

Unlocking Earth’s Secrets: New Study Reveals Gold is ‘Leaking’ from the Core!

May 28, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version