×
× Digital News Videos Opinion Special Reports Lifestyle Central Coast Eastern Nairobi North Eastern Nyanza Rift Valley Western Business News Stocks Financial Standard Africa Asia America Europe Weird News Editorial Commentary Letters Crazy World Features Entertainment Money & Careers Health & Science Sci & Tech Home & Away Generation Next Cartoon Education Pointblank Environment Travel & Destination Columns Kipkoech Tanui uReport Kiambu Murang'a Nyandarua Kirinyaga Nyeri Baringo Bomet Elgeyo Kajiado Kericho Laikipia Nakuru Nandi Narok Samburu Trans Nzoia Turkana Mombasa Kwale Kilifi Tanariver Taita Taveta Kakamega Vihiga Bungoma Busia Siaya Kisumu Homabay Migori Kisii Nyamira Nairobi Uasin Gishu West Pokot Sunday Magazine The Hague Trial Kenya @ 50 Education and Training Health and Environment Insurance and Financial Security Housing Current Affairs Humour Makau Mutua David Oginde Clay Muganda Comand Your Morning Mohamed Wehliye Wednesday Life Alexander Chagema Arts & Culture Kamotho Waiganjo Barrack Muluka Xn Iraki Urban Rights - By Steve Ouma Branding Voice KCB Fredrick Ogola Sunday Magazine Wanja Kavengi Njoki Kaigai David Oginde Ken Opalo Daisy Maritim Houghton Irungu Hustle News Group Stages Round of 16 Quarter Finals Semi Finals Finals Third Place play-offs Opinion Dr Pesa Podcasts Round Table Sepetuko Eve Woman Ramadhan Special Fact Check Correction Explainers The Standard Insider Blog E-Paper Lifestyle & Entertainment Nairobian Entertainment Eve Woman Travelog TV Stations KTN Home KTN News BTV KTN Farmers TV Radio Stations Radio Maisha Spice FM Vybez Radio Enterprise VAS E-Learning Digger Classified The Standard Group Corporate Contact Us Rate Card Vacancies DCX O.M Portal Corporate Email RMS
×

Losing Nemo: clownfish 'cannot adapt to climate change'

By AFP | November 27th 2019 at 08:29:56 GMT +0300

Clown fish face an uncertain future as they lack the reproductive genetic variation to cope changes in their environment driven by climate change

The star of Pixar's blockbuster "Finding Nemo" may be about to vanish again -- this time for good -- as its peculiar mating habits put it at risk from climate change, scientists said on Tuesday.

They observed the vibrantly coloured clownfish -- which live in anemones -- for more than 10 years around Kimbe Island off eastern Papua New Guinea.

A team from France's National Centre for Scientific Research (CNRS) along with other scientists established that the fish were picky about the way they choose their mates.

Given that both anemone and their clownfish tenants ultimately rely for their survival on coral, which is under threat from warming seas and threats such as pollution and human intrusion, they may need to adapt quickly.

The scientists say this can be achieved only with great difficulty.

"The reproductive success of a population is what guarantees (its ability) to adapt," CNRS researcher Benoit Poujol told AFP.

And clownfish have a "very particular" reproductive cycle, dependent on a stable, benign environment.

Each anemone is home to one female fish, a sexually active male and several other males who are not sexually active.

"When the female dies, the male becomes female and the largest of the non-sexually active males became sexually active," Poujol said.

"The clownfish does not have the genetic variation which will allow it to modify its reproduction (method) if there are environmental constraints."

The Intergovernmental Panel on Climate Change last year warned that under 1.5C of warming Earth would lose at least 70 percent of its coral reefs.

Under 2C of warming coral, and the vital ecosystems it supports, would be virtually wiped out.


THE STANDARD INSIDER

Read More

Feedback