invasive species

Politics & Government
8:53 am
Wed June 19, 2013

Local government leaders begin 3 day meeting on Great Lakes issues

A map of the Great Lakes and St. Lawrence River
great-lakes.net

A three day conference is getting underway in Marquette today, looking at the unique needs of cities on the Great Lakes and the St. Lawrence River.

More than a hundred American and Canadian cities are part of the group organizing the conference.

Dave Ulrich is the executive director of the Great Lakes and St. Lawrence Cities Initiative.

He says this year’s conference is focusing on the effects of climate change on Great Lakes cities, particularly on water levels on the lakes.

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Environment & Science
4:54 pm
Tue June 18, 2013

Study shows Asian carp eggs could survive in tougher conditions than previously thought

Asian carp can grow to weigh up to 100 pounds.
Kate Gardiner Creative Commons

Wildlife managers could have a harder time controlling spawning Asian carp, if they escape into the Lake Michigan from Chicago-area shipping canals. That's according to a report released by the U.S. Geological Survey.

Elizabeth Murphy is a hydrologist with the USGS. She co-authored the study.

Murphy says new data shows fertilized Asian carp eggs can incubate in waterways that are only 16 miles long. That’s a lot less than the 62 miles scientists thought the drifting eggs needed.

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Politics & Culture
4:58 pm
Mon June 3, 2013

Stateside for Monday, June 3rd, 2013

Lawmakers in Lansing are quickly wrapping up the state budget for the next fiscal year. What will the $50 billion spending plan mean for you?

And, we took a look at the efforts to help prison inmates rebuild their lives through post-secondary education.

Also, we got an update on just how close the Asian Carp is to the Great Lakes.

First on the show, the Council of Great Lakes Governors met this past weekend on Mackinac Island.

The group talked of economic cooperation, and harmonizing plans for protecting the largest body of freshwater on the Earth’s surface. The discussions were mostly nice, but there were some disagreements, especially when it came to dealing with invasive species.

Michigan Public Radio’s Rick Pluta joined us today to explain.

Stateside
4:51 pm
Mon June 3, 2013

Governors meet to discuss threat of Asian carp

Asian carp DNA has been found in some curious places in the Great Lakes
Kate.Gardner Flickr

An interview with Duane Chapman, a research fish biologist with the U.S. Geological Survey.

The Council of Great Lakes Governors met this past weekend on Mackinac Island.

The group talked of economic cooperation, and harmonizing plans for protecting the largest body of freshwater on the Earth’s surface. The discussions were mostly nice, but there were some disagreements, especially when it came to dealing with invasive species like Asian carp.

Rick Pluta filed a story on their meeting, and we also got an update on where things stand with Asian carp. 

We spoke with Duane Chapman, a research fish biologist with the U.S. Geological Survey. Chapman said that there have been three Bighead carp that have been caught in the Great Lakes, but not since 2000. 

Listen to the whole story to find out where the most recent DNA has been found in the Lakes, and how it got there.

To hear the story, click the audio above.

Environment & Science
12:46 pm
Wed May 8, 2013

Spread of invasive 'stink bug' has some farmers worried

The brown marmorated stink bug is identified by its antennae and legs.
Credit Rutgers University

The bug looks like this:

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The Environment Report
11:59 am
Tue March 26, 2013

Michigan chefs experiment with Asian carp

Chefs prepare Asian carp.
Sarah Payette

You can listen to today's Environment Report above.

One of the strategies to keep Asian carp out of the Great Lakes is to eat the fish now living in the Mississippi River. But finding a market for millions of pounds of carp is not easy. Peter Payette wondered if people could get excited about Asian carp as a seafood delicacy. So he put some in the hands of chefs in Traverse City:

Asian Carp doesn’t taste like much. In fact, you might describe its taste as neutral.

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The Environment Report
10:52 am
Tue December 18, 2012

Researchers map 34 threats to the Great Lakes

The research team used the combined influence of 34 different threats to map environmental stress on the Great Lakes.
University of Michigan

You can listen to the interview with David Allan on today's Environment Report.

The Great Lakes are under a lot of stress. 

34 different kinds of stress, to be exact.

That’s according to a research team that has produced a comprehensive map showing many of the things that stress the Great Lakes.  Think: pollution, invasive species, development and climate change... just to name a few. 

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Environment & Science
3:31 pm
Thu September 13, 2012

Stateside: Asian Carp and the Great Lakes

Asian carp at Chicago's Shedd Aquarium.
Kate Gardiner Creative Commons

They've become YouTube stars: big fat Asian carp leaping into boats and sometimes breaking bones as they come flailing into the boat of some poor person who just wanted to enjoy some time on the water.

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Offbeat
11:39 am
Thu September 13, 2012

VIDEO: An 'apex hunter' rides to the rescue in Asian carp battle

A Carp Hunter in action near Peoria, IL.
YouTube

Shark Week, schmark week.

It's Asian Carp Week here at Michigan Radio!

All week long, The Environment Report has been bringing us stories about Asian Carp & the Great Lakes.

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Environment & Science
11:01 am
Tue September 4, 2012

Battle Over Michigan's New Swine Rules Goes Hog Wild

A Russian sow on Mark Baker's farm. Four other parties have joined Baker's lawsuit against the Michigan Department of Natural Resources.
Courtesy of Long Haul Productions

Originally published on Wed September 19, 2012 4:33 pm

It's estimated that as many as 3,000 wild pigs are on the loose in Michigan. Nationwide, they cause more than $1.8 billion in damage to farms each year. So recently, the state's Department of Natural Resources put Russian boar on the state's invasive species list.

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Environment & Science
5:27 pm
Tue August 14, 2012

Michigan DNR plans to harvest healthy ash and beech trees before disease sets in

Technicians in Michigan Tech's emerald ash borer survey search for signs of the pest in Brimley State Park. Here, on the shore of Lake Superior, the first borer-infested ash tree was found in Michigan's Upper Peninsula.
Michigan Technological University

Forests throughout Michigan are undergoing big changes as millions of beech and ash trees are killed off by pests and disease.

Beech Bark Disease and the Emerald Ash Borer first arrived in Michigan around twelve years ago.

Both problems continue to spread, but many forests still have healthy trees in them.

Foresters from the Michigan Department of Natural Resources and Michigan Tech are taking a closer look at more than 30,000 acres of state forest land.

Andrew Storer, professor of forest and insect ecology at Michigan Tech, said the plan is to harvest healthy stands of ash and beech trees before they’re affected.

"If it's consistent with the management objective of the stand, then removing resources that you know are not going to persist until the next cutting cycle makes a lot of sense just in terms of getting the value out of those trees while they’re still in the forest," said Storer.

Storer said harvesting these trees now can also help forest ecology.

"It helps the forest by getting a head start, if you like, on what the future forest is going to be, and so by removing trees now and getting the value from that, we’ll start to see what the regenerating forest is going to be, and through management be able to direct that regeneration toward species that are going to be successful in the forest in the future," said Storer.

In a press release, the Michigan DNR said the goal is not to remove all beech or ash trees in these forests, but to thin them to a healthier level.

"We are using criteria including proximity to the nearest infested site, infestation, size, density and quality of trees, and accessibility, in order to prioritize which areas need attention," said Bill O'Neill, chief of the DNR's Forest Resources Division, who also serves as state forester. "Considering other factors important to maintaining healthy forests, harvests are being scheduled to remove the beech and ash and regenerate the stand to a desired, productive species mix. The goal is not to remove all beech or ash, but to reduce them to a level that the mortality will not significantly impact the quality of the remaining trees or the productivity of the forest."

Researchers started surveying state forest land for this project last June and plan to continue surveying through next summer.

Environment & Science
4:01 pm
Sat August 4, 2012

A new Asian Carp threat in Michigan waters

Grass Carp
US Geological Survey -- Florida Integrated Science Center, Gainesville

State wildlife officials are concerned that a potentially damaging fish has turned up in the St. Joseph River in Berrien County.

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Environment & Science
10:37 am
Mon July 16, 2012

State plans to remove Asian Carp species from Michigan lake

A ball of white bread and 6-pound fishing line did this grass carp in.
user Catman529 wikimedia

It's not one of the "Big Three" Asian Carp species that biologists worry could devastate an already struggling Great Lakes fishery (Bighead, Black, or Silver). But the Grass Carp is a species of Asian Carp officials are concerned about. The fish can damage native plant and fish habitat in lakes.

The Michigan Department of Natural Resources plans to remove these illegal carp from a lake about 20 miles southeast of Jackson, Michigan.

Marrs Lake in Lenawee County is where officials previously said they found a grass carp. MDNR also plan to sample connected lakes (Washington, Wolf and Allen) for grass carp DNA to see whether the fish spread.

The grass carp was found during a June survey after a fisherman submitted a photo of one. During the survey, three other grass carp were spotted.

Environment & Science
11:33 pm
Wed July 11, 2012

Tracking invasive species in Detroit, one tree at a time

Ecological surveyor Chris Kort leans back to get a better view of a tree he's cataloging. Kort has counted over 13,000 trees in Detroit since March.
Meg Cramer

There’s so much to know about what’s happening in the world around us, and that information gives us insights into patterns and changes that could have a big impact on our lives.

But finding these trends requires a lot of data – and somebody has to go out and get it.

Chris Kort is one of those people. He's an ecological surveyor counting trees in Detroit. For every tree he counts, Kort marks where the tree is, then he adds details like its size, species, and health.

Kort does this all day long, walking up and down Detroit streets, counting trees on city property.

“Since March, I have surveyed 13,468 trees. And counting,” he says.

The data from this survey will go to the city, the state, and scientists at the U.S. Forest Service. It will tell a story about what’s happening to trees in the city.

A database like this has to be built manually by people like Chris Kort, tree by tree.

Kort is like the human version of the Google street view car, roving up and down blocks and adding to his map. He notices details that most people miss. There are some things you can only find on foot. 

“I’ve actually been collecting pennies on the sides of the roads for, like four months," says Kort, "I cashed in 2,200 pennies yesterday. People just don’t pick them up anymore apparently.”

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Environment & Science
4:34 pm
Mon July 9, 2012

The search resumes Tuesday for possible Asian Carp in Illinois lake close to Lake Michigan

Bighead Asian carp caught in 2010
Illinois DNR

An intensive four day search for the invasive Asian Carp gets underway near Chicago tomorrow. The search area is a short swim from Lake Michigan.

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Environment & Science
10:00 am
Sat July 7, 2012

Hunt for Asian Carp resumes near Lake Michigan

Juvenile silver carp, seen here, can grow up to weigh 100 pounds.
user MirkoB Wikimedia Commons

TRAVERSE CITY, Mich. (AP) - Authorities plan another intensive search for Asian carp next week after repeatedly detecting DNA from the invasive fish in Chicago's Lake Calumet.

Officials said Friday that genetic material from silver carp was found in samples taken in May and June. Policy requires stepped-up efforts to find the fish whenever their DNA turns up during three consecutive rounds of sampling in the same area.

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Environment & Science
1:01 am
Wed June 20, 2012

Illinois officials downplay postive test for Asian Carp DNA near Lake Michigan

A Bighead carp caught in June of 2010 in Lake Calumet, Illinois
Illinois DNR

Illinois officials are downplaying the recent discovery of Asian Carp DNA in a waterway a short distance from Lake Michigan.

Asian Carp are an invasive species that experts fear could devastate fish native to the Great Lakes.

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Environment & Science
11:59 am
Wed June 6, 2012

Arkansas man charged for illegally selling Asian carp in Michigan

Grass carp have been illegal to sell in Michigan for decades.
USGS

A man was charged with 12 felony counts for illegally selling live Asian carp in Michigan. And he wasn't too inconspicuous - "grass carp" was apparently written on the side of his truck.

From the Michigan DNR:

...the Attorney General's Criminal Division has charged an Arkansas man with 12 felony counts of possessing and selling live Asian carp in violation of state law protecting against the spread of invasive species. The charges follow a joint investigation by the DNR's Special Investigation Unit and Commercial Fish Enforcement Unit.

Grass carp are a type of Asian carp. Grass carp have been illegal to sell in Michigan for decades because the invasive species is a voracious plant eater.

Officials say grass carp "could potentially remove all vegetation from a body of water at the expense of native species."

The fish were imported in the 1960's and have been used to control weeds in ponds.

State officials say David Shane Costner, 42, of Harrisburg, Ark., had 110 grass carp housed in a semi-truck. Costner was working for Farley's Arkansas Pondstockers.

More from the MDNR:

Costner allegedly traveled around the state, conducting sales of the illegal carp from store parking lots. The trucks also contained live fish species permitted under state law, including channel catfish, largemouth bass and fathead minnows. On May 16, 2012, Costner allegedly sold two of the live grass carp to undercover DNR investigators in Midland, Mich.

David Eggert of MLive reports Costner's truck had the words "grass carp" written on the side.

The wildlife agency received a tip that Costner had been selling illegal carp at several locations in southern Michigan and the west side of the state, Golder said... Costner could not be reached for comment. A secretary who answered the phone at Farley's said he no longer works there.

Grass carp are just one of four species of Asian Carp officials are worried about. And Grass carp appear to be the least of their worries when it comes to threats to the Great Lakes.

The Asian Carp Regional Coordinating Committee lists three Asian Carp that are of concern - Grass carp are not on the list:

There are three species of Asian carp that are considered invasive and a threat to the Great Lakes: the bighead, silver and black carp. Silver and bighead carp are filter-feeding fish and consume plant and animal plankton. Asian carp can grow to large sizes: some as large as 110 pounds, though the average size is around 30-40 pounds. Bighead and silver carp are voracious eaters, capable of eating 5-20 percent of their body weight each day. They consume plankton—algae and other microscopic organisms—stripping the food web of the key source of food for small and big fish. Black carp differ in that they consume primarily mollusks, and threaten native mussel and sturgeon populations. They can grow to seven feet in length and over 100 pounds.

Environment & Science
10:27 am
Wed May 30, 2012

Invasive species hit your pocketbook

Sea lamprey cost taxpayers millions every year to control.
user drow_male wikimedia commons

The Nature Conservancy has released an analysis saying that invasive species such as zebra mussels and sea lamprey cost businesses and consumers hundreds of millions of dollars each year, besides damaging the environment in the Great Lakes region.

Power companies spend $130 million annually removing mussels from electric plants.

The report out yesterday said tourism and other industries lose $50 million a year in reduced demand because of invasive species.

The study conducted by Anderson Economic Group of East Lansing says the situation will get worse if Asian carp reach the Great Lakes.

Environment & Science
6:24 pm
Tue May 8, 2012

Feds say they'll act quicker to release study on keeping carp out of Great Lakes

Asian Carp at Chicago's Shed Aquarium
Kate Gardiner Creative Commons

The federal government says it will speed up a decision on how to protect the Great Lakes from invasive species in the Mississippi River basin. The Obama administration announced the new timetable Tuesday.

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