News / Science & Technology

Scientists Work to Save Disappearing Kelp Forests

Scientists Work to Save Disappearing Kelp Forestsi
X
August 20, 2013 11:31 PM
Underwater kelp forests are sometimes called the rain forests of the sea, but they’re disappearing, hurting fisheries and coastal communities worldwide. A project off the coast of California is helping to restore them, as we hear from Mike O'Sullivan in Los Angeles.
Mike O'Sullivan
Underwater kelp forests are sometimes called the rainforests of the sea, but - like the verdant jungles on land - the vast beds of seaweed are disappearing, hurting fisheries and coastal communities worldwide.  A project off the coast of California is helping to restore them.

Divers are working in the waters off the Palos Verdes Peninsula in places known as barrens, which once were home to thriving kelp forests. Today, these parts of the seabed are thick with sea urchins, creatures that have proliferated because of pollution and other human activities. The divers are killing some of urchins to thin the population, which is sickly and malnourished.  This restores the natural balance, says David Witting of the National Oceanographic and Atmospheric Administration.

“That will allow the kelp to establish itself," he said. "Once there's a healthy kelp forest system, the urchins tend to feed off of the broken-off pieces of adult kelp, rather than foraging on the juvenile kelp.”

Scientists regularly head out to sea for the restoration work on the 60-hectare project.

Tom Ford of the Santa Monica Bay Restoration Foundation says kelp forests have been depleted in temperate waters in many parts of the world.

“That list of places would include Korea, Japan, New Zealand, Tasmania, Australia, South Africa, Chile, and then back up the coast here into North America,” he said.

The restoration work is helping young kelp plants take root and flourish. And the return of healthy kelp forests to this offshore area provides a habitat for sea life and again creates a place of natural beauty.

“It's very much like being in a forest under water. So you have that feeling of being under water, but you also have that filtered light," said fisheries scientist David Witting. "There are fish in all parts of the water column. There are tremendous amounts of diversity.”

This intervention is taking place in other places as well, including Canada and South Korea, where coastal environments are under pressure, explains Tom Ford.

“As our human population increases and people are moving into the cities, we are putting more pressures on our coastal environments, so that the pollution problem seems to be getting greater," he said. "At the same time [there are] more mouths to feed, so we're trying to get more and more out of our oceans to accomplish that.”

Many of the techniques to restore the world’s kelp forests are being developed here.  A coalition of environmental and scientific groups, and local fishermen, are supporting the work. All hope to see the return of a healthy population of marine life.  Scientists say the project shows that with some human help, the rainforests of the sea can flourish once again.

You May Like

UN Watchdog Urges Israel to Probe Possible Gaza War Crimes

More than 2,100 Palestinians, most of them civilians, were killed in a 51-day war in Gaza, along with 67 Israeli soldiers and six civilians in Israel More

New Kenyan 'Thin SIMs' Poised to Transform African Mobile Money

Equity's new technology is approved in African nation for one-year trial, though industry leader Safaricom says thin SIMs could lead to data theft and fraud More

Solar's Future Looks Brighter

New technology and dropping prices are contributing to a surge in solar power More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Talks to Resume on Winter Gas for Ukrainei
X
Al Pessin
October 25, 2014 4:21 PM
Ukrainian and Russian officials will meet again next week in an effort to settle their dispute over natural gas supplies that threatens to leave Ukraine short of heating fuel for the coming winter. VOA’s Al Pessin reports from London the dispute is complex, and has both economic and geopolitical dimensions.
Video

Video Talks to Resume on Winter Gas for Ukraine

Ukrainian and Russian officials will meet again next week in an effort to settle their dispute over natural gas supplies that threatens to leave Ukraine short of heating fuel for the coming winter. VOA’s Al Pessin reports from London the dispute is complex, and has both economic and geopolitical dimensions.
Video

Video Smugglers Offer Cheap Passage From Turkey to Syria

Smugglers in Turkey offer a relatively cheap passage across the border into Syria. Ankara has stepped up efforts to stem the flow of foreign fighters who want to join Islamic State militants fighting for control of the Syrian border city of Kobani. But porous borders and border guards who can be bribed make illegal border crossings quite easy. Zlatica Hoke has more.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.
Video

Video US ‘Death Cafes’ Put Focus on the Finale

In contemporary America, death usually is a topic to be avoided. But the growing “death café” movement encourages people to discuss their fears and desires about their final moments. VOA’s Jerome Socolovsky reports.
Video

Video Ebola Orphanage Opens in Sierra Leone

Sierra Leone's first Ebola orphanage has opened in the Kailahun district. Hundreds of children orphaned since the beginning of the Ebola outbreak face stigma and rejection with nobody to care for them. Adam Bailes reports for VOA about a new interim care center that's aimed at helping the growing number of children affected by Ebola.

All About America

AppleAndroid