algae

Environment & Science
4:26 pm
Tue July 22, 2014

Scientists find algae bloom near Maumee River

When tiny microscopic plants (top photo) bloom out of control, it's called an 'algal bloom' (bottom photo).
Credit NOAA.gov

Scientists are working to identify an algae bloom near the Maumee River. It's a yearly event that occurs during the warm summer months.

Researchers at the Great Lakes Environmental Research Laboratory confirmed that the cyanobacteria bloom has been intensifying over the last week.

Also known as blue-green algae, it can be harmful to the aquatic environment and to people. People shouldn't swim in a bloom- it can cause skin rashes or even severe stomach problems.

Tim Davis is a research biologist with the lab. 

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The Environment Report
2:02 pm
Tue July 15, 2014

Researchers predict smaller algae problem in Lake Erie this year

Algae blooms are predicted to be smaller in Lake Erie in 2014. Last year's bloom was large due to a relatively wet spring followed by a wet July.
Mark Brush Michigan Radio

 

Listen to today's Environment Report: fracking rules and algae forecast

The forecast is in: the green goo will be back on Lake Erie this year, but it won’t be as bad as last year.

The big, ugly algal blooms happen when excess nutrients — mostly phosphorus — run off into the lake from farms and sewage treatment plants. Some of these kinds of algae produce toxins can harm pets and make the water unsafe to drink.

Rick Stumpf is an oceanographer with the National Oceanic and Atmospheric Administration. He says they’re predicting this year’s bloom in Lake Erie will be significant, but not as bad as it has been in recent years. The blooms reached a record level in 2011.

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The Environment Report
4:27 pm
Tue April 29, 2014

Pushing to expand the ban on a lawn care ingredient

Fertilizer without phosphorus, indicated by the 0 on the bag.
Credit Julie Grant

You can listen to today's Environment Report above.

Algal blooms continue to plague Lake Erie. Farms and wastewater have gotten a lot of attention for contributing nutrients that create these harmful blooms.

More recently, the spotlight has focused on lawn care. Grass fertilizers can also contain phosphorus that winds up in waterways. Michigan and other states around the Great Lakes have already banned lawn fertilizers that contain phosphorus. Now international regulators and others are pushing Ohio and Pennsylvania to do the same.

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Stateside
3:58 pm
Tue March 11, 2014

What can be done about algae blooms and dead zones in Lake Erie?

Algae in Lake Erie.
Mark Brush Michigan Radio

If you lived in Michigan in the 1960s and '70s, you will remember: Lake Erie was on the "critical list." It was once declared dead.

But it got back on the road to health and recovery until the mid-1990s.

That's when the lake started showing signs of distress, with large algae blooms and dead zones showing up again.

Now comes a report from an international agency that keeps a close eye on the health of the Great Lakes, and it is a clarion call to action. Among the agencies contributing to the report is the Graham Sustainability Institute at the University of Michigan.

Don Scavia, director of the Graham Sustainability Institute, joined us today.

Listen to the full interview above.

Environment & Science
12:43 pm
Thu February 27, 2014

More action needed to clean up Lake Erie, says international agency

Algae blooms have once again become common in western Lake Erie.
Mark Brush Michigan Radio

Massive algae blooms and dead zones in Lake Erie: These used to be major environmental problems around the most urbanized Great Lake back in the '60s and '70s, but they are problems once again.

Now, an international agency that keeps an eye on the health of the Great Lakes is calling for more action.

The International Joint Commission, a U.S.-Canadian agency, wants sharp cutbacks on phosphorus runoff getting into Lake Erie.

The amount of phosphorus available in rivers and lakes is one of the main drivers of algae growth. The more you have, the more the algae blooms.

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Environment Report
7:58 am
Tue December 17, 2013

Why are Great Lakes birds dying from botulism?

The common loon
Credit Steve Maslowski/U.S. Fish and Wildlife Service

Imagine walking down a picturesque beach along Lake Michigan, and stumbling upon the carcasses of dead birds. That’s a very real and unpleasant problem along Lakes Michigan, Huron, Ontario and Erie. (It’s not as big of an issue in Lake Superior because of the lake’s colder water temperatures.)

Loons and other deep-diving birds are suffering from a disease called avian botulism. It’s form of food poisoning that kills wild birds in the Great Lakes ecosystem.

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Environment & Science
3:08 pm
Sun December 15, 2013

Lake Erie to be focus of Ohio legislative group

Sport fishing boat on Lake Erie.
Credit Mark Brush/Michigan Radio

COLUMBUS, Ohio (AP) - A bipartisan group of Ohio lawmakers plans to make Lake Erie the focus of discussions next year.

State Sens. Randy Gardner, a Bowling Green Republican, and Capri Cafaro, a Democrat from Hubbard, say the Lake Erie Caucus will meet in January to address state and federal policies related to the body of water.

The group will look at ways to preserve the environmental health of the lake and to work on related economic growth and tourism issues.

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Environment & Science
10:38 am
Sun December 15, 2013

Study finds food supplies drop in Lakes Huron, Michigan

NOAA

TRAVERSE CITY, Mich. (AP) — Food supplies for fish and other organisms are declining in some areas of the Great Lakes, particularly Lakes Huron and Michigan, according to a newly released scientific report.

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Environment & Science
12:48 pm
Tue November 5, 2013

'Lake Erie has 2% of the water in the Great Lakes, but 50% of the fish'

The 2011 algae bloom on Lake Erie. Significant blooms returned to Lake Erie around 2000-01. Researchers are looking into how these blooms affect fish.

The stat comes from Jeff Reutter, Director of Ohio State University's Stone Laboratory. He says the converse is true for Lake Superior. It holds 50% of the water, but just 2% of the fish.

It's a rough estimate, he says, but it gives you a good understanding of how each of the five Great Lakes have unique characteristics, which present unique challenges in managing these lakes.

As part of our series on how climate change is affecting the Great Lakes, Reutter spoke to us about how Lake Erie is especially vulnerable to temperature variations. It is the southernmost, and the shallowest of the five Great Lakes.

He also spoke about how, unlike the other four Great Lakes, Lake Erie is surrounded by agriculture and a more urbanized landscape.

You can listen to him speak about his "50 and 2 Rule" here:

Lake Erie has seen a resurgence in algal blooms over the last ten years. It was once a big problem in the 60s and 70s, and it has returned as a problem again.

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The Environment Report
9:05 am
Tue October 8, 2013

Algal blooms causing concern in northern lakes

Hamlin Lake on Ludington State Park.
Flickr

For years Lake Erie has been the poster child in the Great Lakes for the problem of toxic algae.

More recently, though, the problem has been showing up farther north around Lake Michigan.

Figuring out the causes of the algal blooms can be tough since watersheds are complex systems but some environmentalists are pointing the finger at corn. It’s a valuable cash crop today and could be a growing part of the farm landscape in the Great Lakes in the years ahead.

Algal bloom hits Mason County

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The Environment Report
9:03 am
Fri October 4, 2013

Warmer waters fuel toxic algal blooms in the Great Lakes

Algae scooped out of Maumee Bay in Lake Erie.
Mark Brush Michigan Radio

Big, ugly algal blooms are reappearing in the western basin (and sometimes the central basin) of Lake Erie.

The blooms happen when excess nutrients – mostly phosphorus – run off into the lake from farms and sewage treatment plants.

Some of these kinds of algae produce toxins that are among the most powerful natural poisons on Earth.

Over the past decade, these algal blooms have been common in Lake Erie. And scientists predict climate change could make the problem worse.

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Stateside
1:11 pm
Tue August 27, 2013

What is causing the Green Bay dead zone and can it be fixed?

Excess algae is creating a dead zone.
NOAA Great Lakes Environmental Research Laboratory Flickr

An interview with Don Scavia, an aquatic ecologist with the University of Michigan and the director of the Graham Sustainability Institute.

There's a "dead zone" in Green Bay.

That may sound like a title of a Stephen King novel, but it is happening in Lake Michigan's Green Bay. A growing dead zone with so little oxygen that fish can't survive. Neither can smaller critters.

Don Scavia is an aquatic ecologist with the University of Michigan and the director of the Graham Sustainability Institute. He joined us today to talk about what’s causing this dead zone and what can be done to fix it.

Listen to the full interview above.

Environment & Science
4:01 pm
Fri August 16, 2013

Green Bay is developing a large 'dead zone'

Algae like this is a leading cause of dead zones
NOAA Great Lakes Environmental Research Laboratory Flickr

Lake Michigan’s Green Bay is developing dead zones similar to those found in Lake Erie and the Gulf of Mexico. In these zones, the oxygen content in the water is so low, virtually no fish, insects, or worms can survive.

According to a report by the Associated Press, in a public webinar on Thursday scientists said the dead zone may cover as much as 40% of the Bay. Tracy Valenta, a water resources specialist for the Green Bay Metropolitan Sewerage District, said that the zone starts approximately eight miles northeast of the city and may extend more than 30 miles.

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Environment & Science
1:13 pm
Wed July 31, 2013

University of Michigan researchers test algae as fuel source

Algae on a lake.
Abhishek Shirali Flickr

For some, algae can be a lakeside nuisance. But for a team of University of Michigan research, it might be the key ingredient for a new fuel.

The National Science Foundation recently granted a $2 million grant to a group of ecologists, engineers, and biologists to investigate green algae’s potential as a biofuel.

The main goal for the researchers: Find what combinations of algae make the most efficient fuel source.

From the University of Michigan’s News Service:

“People have suggested that species diversity might increase the efficiency of algal biofuel systems, but nobody has set up the experiments to test it directly. These will be the first experiments to systematically manipulate the number and types of species in the system to determine how to maximize the yield and stability of algal biofuel,” said ecologist and team leader Bradley Cardinale.

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Environment & Science
1:34 pm
Sun July 21, 2013

More algae in Lake Erie

Satellite image of 2011 bloom (one of the most severe in decades).
Credit MERIS/NASA

A significant amount of blue-green algae is expected in the western basin of Lake Erie this summer. This year’s algal bloom will be about 1/5 as bad as what happened in 2011.

2011 was one of the worst years on record for the explosions of algae growth.

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Environment & Science
4:25 pm
Tue February 26, 2013

MSU study celebrates marriage of algae gene to a weed

Christoph Benning, Professor of Biochemistry and Molecular Biology at MSU
Credit Courtesy: Michigan State University

Michigan State University researchers are celebrating the marriage of a weed and an algae gene -- and its value as a potential biofuel. 

The team found that adding an algae gene to mustard weed caused the plant to store oil in its leaves, and the technique could be used to get more energy out of plants grown for bio-fuel.

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