Asian Carp Barrier on Low

  • Asian Carp can grow up to 110 pounds (Photo courtesy of the US Fish and Wildlife Service)

A stronger electric barrier
to keep an invasive fish out of the
Great Lakes is set to be turned on.
But people who travel past the
underwater barrier are worried about
electric shocks. Chuck Quirmbach
reports:

Transcript

A stronger electric barrier
to keep an invasive fish out of the
Great Lakes is set to be turned on.
But people who travel past the
underwater barrier are worried about
electric shocks. Chuck Quirmbach
reports:

This barrier is supposed to keep Asian carp from getting into the Great Lakes.

Those fish escaped from Southern fish farms years ago. They’ve spread up the Mississippi river.
Now they’re near a canal that connects the Mississippi system with the Great Lakes.

Biologists worry the big fish would ruin Great Lakes fishing and the Lakes’ ecosystems. Start up
of ‘The Stronger Barrier’ was delayed because of concerns the electric current could hurt crews
on barges and people on recreational boats as the vessels passed by.

U.S. Coast Guard Captain Bruce Jones recently gave thumbs-up to running the new barrier at
low power.

“ We believe it will continue to keep the Great Lakes protected from carp through the winter, until
spawning season starts.”

But biologists don’t think the barrier will work well enough at low power. And barge operators
don’t want it on at all. They’ll be discussing the concerns at a meeting in Chicago in January.

For The Environment Report, I’m Chuck Quirmbach.

Related Links

New Chronic Wasting Disease Worries

Officials say a new outbreak of Chronic Wasting Disease
could erupt after a fence was cut at an infected hunting preserve in Wisconsin. The Great Lakes Radio Consortium’s Christina Shockley
reports:

Transcript

Officials say a new outbreak of Chronic Wasting Disease could erupt after a fence was cut at an
infected hunting preserve in Wisconsin. The Great Lakes Radio Consortium’s Christina
Shockley reports:

Authorities say someone intentionally cut a hole in a perimeter fence at the preserve in central
Wisconsin. They say tracks indicate deer had gone in and out of the area through the hole…
before the owner saw it and notified the Department of Natural Resources.


Alan Crossley is with the Wisconsin DNR. He says officials shot deer around the preserve to try
to limit the chance the disease would spread to wild deer.


“We have to try to assess whether any deer escaped from that shooting pen. Then we’re going to
be meeting to talk about okay, should we try to do any additional shooting of deer in a larger area
around that pen.”


Crossley says it’s now even more important to monitor deer near the preserve in the years ahead.
He says it will take time to determine how their overall efforts to combat the disease are working.


So far, CWD has been found in the wild in ten states, including Wisconsin, New York and
Illinois.


For the GLRC, I’m Christina Shockley.

Related Links

Romancing the American Chestnut

  • American chestnuts (left) are smaller than Chinese and European chestnuts. The Chinese and European varieties are also resistant to the blight, making the imports more desirable to growers. (Photo by Lester Graham)

Food is always a big part of the holidays. But one
traditional food has – for the most part – disappeared from American tables. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

Food is always a big part of the holidays. But one traditional food has – for the most part – disapeared from American tables. The Great Lakes Radio Consortium’s Lester Graham reports:


(Sound of Nat King Cole singing, “Chestnuts roasing on an open fire…”)


That old chestnut of a song romanticizes roasting chestnuts as a part of the holidays. But a lot of us have never even seen chestnuts, let alone roasted them on an open fire. Chestnuts used to be a major part of the Eastern hardwood forest. There were millions of them. In fact, 25 percent of all the mature trees were chestnuts. But a blight, imported with some Chinese chestnut trees, slowly wiped out the American chestnuts. Now, they’re gone.


Well… almost. Much of the root stock is still alive. Sprouts grow until the blight knocks them back again. A blight only hurts the standing tree where it branches out.


And, in a few isolated pockets in the Midwest, the blight hasn’t reached the trees. A few American chestnuts are alive and growing and some of them are free of the blight. At Nash Nursuries in central Michigan, owner Bill Nash is guiding us through a rare sight… a grove of American chestnuts.


“These are 20 years old and as you can see, they’re fairly good sized. The American chestnut is quite a rapid growing tree. It’s well-suited for our climate, so it doesn’t have any of the problems that some of the hybrids do as far as growing and cultural care you have to take care of them. The Americans, you get them started and they’re pretty much on their own.”


In a few places in Michigan and Wisconsin there are small groves of chestnuts. They’re prized trees. They’re great for shade. The hardwood is rot resistant and makes great furniture and fence posts. And the chestnuts are eaten by humans and wildlife alike. Bill Nash says the tree will be popular again if it ever overcomes the blight that’s hit it so hard.


“The American chestnut will make another big comeback in this country as a yard tree, as a timber tree, as a wildlife tree.”


That part about a wildlife tree is more important than just worrying about the squirrels and bunnies. Chestnuts were an important food source for all kinds of animals.


Andrew Jarosz is a plant biologist at Michigan State University. He says the loss of chestnuts has been hard on wildlife populations.


“Chestnuts shed nuts in a more regular pattern than oaks, which will have what are called mast years – where they’ll have major crops, massive crops one year and very small crops in other years – which means it’s either feast or famine if you’re depending on oaks.”


Since the blight first began hitting American chestnuts about a century ago, researchers have been looking into all kinds of ways to stop it. One way is to cross it with the Chinese chestnut which has a couple of genes that resist the blight. But it takes a long time to breed out the Chinese characteristics from the American chestnuts and still keep the resistant genes.


Another approach is genetic manipulation. Genetically modifying the American chestnut tree to make it disease resistant. Again, work is underway, but it takes a long time. And even after success, it’s likely some people won’t like the idea of releasing a genetically modified organism into the wild.


The final approach worked in Europe when the blight hit there. It seems there’s a naturally occuring virus that kills the blight. It spread naturally in Europe. There are a few groves in Michigan that have naturally acquired the virus and it’s working to keep the blight at bay. Andrew Jarosz is working on the research. He says the trick is figuring out how to get the virus to spread to other trees short of manually spreading it on cankers infected by the blight.


“If we’re literally talking about millions of trees across probably, you know, the eastern third of the country, we obviously can’t treat every canker on every tree. And we need to be able to figure out a way to deploy the virus in a way that it can spread.”


Even with all that hopeful research, it’ll be ten years at least before some practical solutions end up in the forests, and Jarosz believes a couple of centuries before the American chestnut holds the place it once did in the forests.


Bill Nash knows it’ll be a while before there are major changes, but he is optimistic about the American chestnut.


“Oh, I would think the tree has a bright future. There’s enough people working on that, enough programs going on now… So, I would suspect that in the not-too-distant future we should have some of this progress made. You know, Robert Frost in his poem predicted the comeback of the American chestnut, that something would arise to offset that blight. And we’re starting to see that.”


Frost put it this way: “Will the blight end the chestnut? The farmers rather guess not, It keeps smoldering at the roots And sending up new shoots Till another parasite Shall come to end the blight.”


Seems Frost was an optimist too.


For the Great Lakes Radio Consortium, this is Lester Graham.

Related Links

New Federal Rules to Tighten Port Security

Final regulations requiring all ports to be secure against terrorist attacks will be released next month by the federal government. The Great Lakes Radio Consortium’s Mike Simonson reports that port officials are hoping the new rules come with some new money:

Transcript

Final regulations requiring all ports to be secure against terrorist attacks
will be released next month by the federal government. The Great Lakes Radio
Consortium’s Mike Simonson reports that port officials are hoping the new
rules come with some new money:


With 50 nations using the St. Lawrence Seaway,
sending
hundreds of ships, dropping off and picking up
goods, Great Lakes ports have a lot
to make secure.
The Marine Transportation
Security Act makes sure all ports big and small assess risks and come up
with a plan to make things safe from terrorism.


Duluth-Superior Port Security Official Captain Ray Skelton has been working
with Washington on these new regulations. He doesn’t expect any surprises.


“The final regs, if they came out that we have to have armed guards
at piles of limestone, I’d go back to Washington and start a fight. But if
everything stays reasonable, we’ll just go ahead and comply.”


Tighter security may mean some guards, surveillance cameras, fences and alarms.
Skelton says these things are costing ports money without much financial
help from those making up the new rules. Skelton won’t say how much
Duluth-Superior has spent, but he says so far they’ve had to foot the bill.
Ports will have one year to comply with the Marine Transportation Security
Act.


For the Great Lakes Radio Consortium, I’m Mike Simonson.

“Canned” Hunting Challenged

  • Some Great Lakes states are considering a ban on hunting fenced-in animals. Many of these hunting reserves stock their land with popular game such as elk. (Photo courtesy of the USFWS)

An animal rights group wants to ban so-called “canned hunts” in which animals are hunted in fenced-in areas. In one state… a proposed law might accomplish that… but critics say it goes too far. The Great Lakes Radio Consortium’s Shawn Johnson reports:

Transcript

An animal rights group wants to ban so-called “canned hunts” in which animals are
hunted in fenced-in areas. In one state, a proposed law might accomplish that but
critics say it goes too far. The Great Lakes Radio Consortium’s Shawn Johnson
reports:


(sound of truck driving over gravel roads)


At the bottom of steep hills covered by a tall canopy of trees, herds of elk gather
around feed troughs on the Pea Ridge Elk Ranch. In the distance, others forage over
dry winter grass in a clearing. Most glance up when the truck driven by ranch
manager Doug Pennock idles by. Pennock’s voice, along with the crackling of his tires
over chunks of gravel, stand out in an area that’s otherwise serene.


Pennock manages about 300 elk on this ranch 80 miles north of St. Louis. Some are
sent out west to rejuvenate elk populations. Others are slaughtered for meat. And each
year, about 10 to 15 are moved from this pasture to an adjacent deer and elk
preserve where they’re killed by hunters. An eight-foot tall fence surrounds that
300-acre preserve. Pennock says that although the animals are confined, their
environment is about as close to wilderness as you can get.


“We’ve had a lot of customers through who have hunted in different settings…
and certainly feel like ours is as challenging as any other.”


But under legislation being proposed in Illinois… preserves like Pennock’s
would be off limits to hunters. That’s because critics say there’s no sport in a
confined hunt… and that in some cases it’s essentially like shooting fish in a barrel.


The measure’s sponsor… Chicago Democratic Senator John Cullerton… says the
hunts also go after animals that are tame.


“What you see is that this is really not hunting. I mean this is these small relatively
confined areas for animals that have been raised by human beings.”


Cullerton’s proposal applies not only to elk but also to animals such as lions or
bears. Don Rolla is the Executive Director for the Illinois Humane Political
Action Committee. He says confined, or canned, hunts of exotic animals are a growing
problem in other Midwest states… including Indiana and Michigan.


But Rollah says eleven states, including Wisconsin and Minnesota, have already
banned confined hunts. He says that could mean the people who used to hunt there
will now come to Illinois for canned hunts. Rolla says that makes it all the more
important for Illinois to pass its own ban. He says everyone, even hunters, should
support this measure.


“It’s not an anti-hunting bill. It’s a bill that promotes ethics and takes a step
toward solving a problem that Illinois is going to have to deal with very shortly
if they’re going to continue to have a viable hunting activity in the
state.”


It’s difficult to determine which animals ought to be protected under a ban on canned
hunting. Rolla says he’d like it to cover all wildlife. But deer hunting is allowed on
about 500 confined hunting operations in Illinois alone. It’s unlikely that a ban on that
many game farms will pass in the state.


As it’s proposed right now, the measure would protect exotic species. but that means
as it’s written, you couldn’t slaughter livestock raised in a confined area. Tim
Schweizer is with the Illinois Department of Natural Resources.


“Livestock certainly of some kinds… swine and cattle… are not animals that were
indigenous to Illinois. They were imported here many, many years ago. so they might fall
inappropriately under the definition as it was originally outlined in this bill.”


Other species further complicate the proposal. The elk on Doug Pennock’s ranch,
for example, are no longer found in the wild in Illinois… although they were at one
time indigenous. Also, because elk are considered livestock in Illinois, Pennock can
technically let paying hunters shoot them whenever… and wherever they want.


Pennock says his business never uses that freedom… voluntarily enforcing hunting
rules similar to Illinois deer hunting laws. And he says the fences around his property
serve only to help him manage an effective herd.


“I think that most folks like myself that come from a hunting background obviously want
everything to be as close to what we would term fair chase as possible.”


The question for lawmakers will be whether *close* to a fair chase is good enough.
For the Great Lakes Radio Consortium, I’m Shawn Johnson.