Fish Disease Spreads to New Waters

  • Signs of VHS, from the Michigan DNR (Photo courtesy of the US Fish and Wildlife Service)

Despite efforts to stop it, there’s a new
indication a nasty fish virus is spreading. Christina
Shockley has the latest:

Transcript

Despite efforts to stop it, there’s a new
indication a nasty fish virus is spreading. Christina
Shockley has the latest:

The name even sounds scary: viral hemorrhagic septicemia. It causes fish to bleed to
death.

VHS has been in the Great Lakes for at least three years. Officials have been trying
to confine it to the Great Lakes basin, but now it’s spread into central Ohio.

Elmer Heyob is with the Ohio Department of Natural Resources.

He says the worst-case scenario is that VHS could get into a hatchery that stocks fish
for lakes and streams, and that cloud hurt the region’s economy.

“First the hatcheries, then the fishery, then the people that support the fishery, the
boating industry, it just goes on and on.”

Heyob says to stop VHS from spreading, you shouldn’t move fish from one lake to
another, and you should clean boating and fishing equipment before you move to a
different lake.

Researchers believe eventually fish build up immunity to the disease.

VHS does not pose a threat to people.

For The Environment Report, I’m Christina Shockley.

Related Links

Swan Song of the Mute Swans

  • Wildlife officials want to eliminate the European mute swan so it doesn't compete with native birds. (Photo by Christina Shockley)

Controversy over what to do about a non-native swan has taken an
unusual turn. One state that was going to kill all of its mute swans
will now give some of them a short lease on life. It’s going to let
people “adopt” the wild birds. Christina Shockley has the story:

Transcript

Controversy over what to do about a non-native swan has taken an
unusual turn. One state that was going to kill all of its mute swans
will now give some of them a short lease on life. It’s going to let
people “adopt” the wild birds. Christina Shockley has the story:


Mute swans are large, gorgeous, white birds. They were brought to the
U.S. from Europe in the 1800s to beautify parks and estates. The swans
were meant to be kept in captivity, but they escaped, and since, the
numbers have skyrocketed along the Great Lakes and Eastern seaboard.


So, like in other areas, the Wisconsin Department of Natural Resources
has come up with a plan. The state wants to shoot all the mute swans,
but this doesn’t sit well with a lot of people.


Pat Kujawa is one of them. Kujawa is sitting in her home on Phantom
Lake. The area is home to about 85% of Wisconsin’s mute swans. Each
summer for several years, Kujawa’s family has bonded with the mute
swans. She sees the birds as neighbors on the lake.


She holds a photo album full of pictures of the swans and her kids as
they grew up:


“We have pictures of our son Kyle swimming with them, and he’s probably
about I would say 8 or 9 years old, and again other pictures like that,
showing the parents standing back, and all of the babies coming up and
taking bread right out of Kyle’s hands. Sort of suggests that perhaps
the DNR characterization of them being aggressive is somewhat
misguided, or at least it’s what they want people to hear.”


Wildlife officials say the mute swans ARE aggressive, especially during
the nesting and breeding season. They say the mutes push native birds
out of their habitat and upset aquatic life by uprooting vegetation
along the shore.


Officials also say the mute swan was posing a problem as the state
worked to re-introduce the native trumpeter swan. Their numbers have
just recovered.


But because of protests from people like Kujawa, the state government
says it will temporarily modify its mute swan eradication plan. What
they’re doing might seem a little unusual. The state is going to let
people in three counties “adopt,” or sponsor, as many mute swans as they
want.


Erin Celello is from the Department of Natural Resources. She says
people won’t have to bring the birds in the house to live like a cat or
dog, but she says they will have to get the swans fixed:


“They will be able to apply for a permit, to capture a swan from the
wild, and they will be required to neuter that swan, and re-release
that swan into the wild.”


Celello says that will keep the birds from breeding, and the state
won’t shoot the birds when they see them:


“We felt that this is kind of a win-win for everyone. As an agency, we
are still upholding our share of what has become a national mute swan
control policy, while at the same time, allowing for citizens who have
formed emotional attachments to these birds, to keep those birds
around, and keep them on their landscape.”


Celello says the state’s goal is still to kill all of the mute swans. She
says officials will shoot the mutes that aren’t wearing neck tags that
show the birds have been spayed or neutered. And obviously the swans
that have the surgery won’t be having babies. One vet says the spaying
or neutering procedure could cost between 150 and 250 dollars per bird,
and Grace Graham says that might be difficult for her to afford.
Graham is Pat Kujawa’s neighbor on Phantom Lake.


The 70-year-old retired school teacher has been swimming with, and
feeding, the mute swans for years. She says the mute swans should just
be left alone and that it’s wrong to eliminate a species. But she
knows, ultimately, if it’s impossible for the birds to reproduce, the
swans will be gone at some point:


“I don’t want to even think about our lake not having any mute swans on
it. All this summer, the last time I swam with them before the water
got cold I thought, Grace, this is the last time you’re going to get to
do this. Last time you fed them, last time you do all of these things.
It’s kind of like a death thing.”


For the Environment Report, I’m Christina Shockley.

Related Links

Harmful Pesticide Production Dropping Off

The Environmental Protection Agency says the phase-out of a widely used pesticide is working. They say the amount of methyl bromide companies have in stock has been dropping since 2003. Christina Shockley has more:

Transcript

The Environmental Protection Agency says the phase-out of a widely used pesticide is
working. They say the amount of methyl bromide companies have in stock has been
dropping since 2003. Christina Shockley has more:


Methyl bromide is a colorless, odorless gas used by crop growers to kill unwanted bugs.
Scientists say when the chemical gets into the atmosphere, it depletes the ozone layer.


Drusilla Hufford is with the Environmental Protection Agency. She says methyl bromide
is the fourth most widely-used pesticide in the United States:


“It’s used in soils where people are growing crops, it’s used to make sure that houses and
structures are free of pests, and it’s used to make sure that commodities that are shipped
abroad or brought into the United States are also free of pests.”


Methyl bromide was phased out of production in the US in 2005, except for limited
cases. So, for the most part, what’s used now was produced before then.


Hufford says many growers, especially in California, are increasing their use of safer
alternatives to methyl bromide.


For the Environment Report, I’m Christina Shockley.

Related Links

New Way to Reduce Co2 Pollution?

Most scientists believe the earth is warming, partly because of carbon dioxide from sources such as coal-fired
power plants and automobiles. A new study shows the heat-trapping gas could be pumped into deep-sea sediment. The
GLRC’s Christina Shockley reports:

Transcript

Most scientists belive the earth is warming, partly because of carbon dioxide from sources such as coal-fired
power plants and automobiles. A new study shows the heat-trapping gas could be
pumped into deep-sea sediment. The GLRC’s Christina Shockley reports:


Right now, carbon dioxide is usually just released into the atmosphere. One solution
could be pumping it into the ground, but it might leak back out.


Dan Schrag is a professor of Earth and Planetary Sciences at Harvard University. He co-
authored a study that shows carbon dioxide pumped into sediment in the sea floor
wouldn’t come back up:


“It’s a very high pressure because of the weight of the overlying water, but very low
temperature. And as a result, the carbon dioxide sits not as a gas, but as a dense liquid.
It’s in fact denser than the sea water and so it wants to sink, not rise.”


Schrag says the carbon dioxide would be stable under the water for millions of years. He
says this is one option of many that need to be considered.


Schrag says the technology exists to get the gas underground, but cost could be a major
hurdle.


For the GLRC, I’m Christina Shockley.

Related Links

U.S. Motorcycles to Rev Up in China?

Many American manufacturing companies are trying to break into the Chinese market. With about a billion people, the idea of selling goods in China is an attractive one, but the GLRC’s Christina Shockley has the story of one company that’s having a hard time reaching Chinese citizens. That’s because local environment and safety regulations often stand in the way:

Transcript

Many American manufacturing companies are trying to break into the Chinese market.
With about a billion people, the idea of selling goods in China is an attractive one, but
the GLRC’s Christina Shockley has the story of one company that’s having a hard time reaching
Chinese citizens. That’s because local environment and safety regulations often stand in the way:


Motorcycle maker Harley-Davidson opened a dealership in Beijing in April. It’s the
company’s first shop in China in at least 60 years.


Robert Kennedy is Executive Director of the William Davidson Institute at the University
of Michigan. The institute studies business and policy issues in emerging markets.
Kennedy says there’s a huge demand in countries like China for products associated with
the American way of life. He says Harley-Davidson motorcycles are a prime example:


“I mean, they’re associated with a particular lifestyle here, it’s a very American thing.
And they have very low penetration in China and India, and these other countries now,
but because there’s slowed demand growth in the US, if they want to grow, that’s a great
place for them to go.”


Kennedy says it’s very common for companies to try to ease restrictions in other
countries to make it easier for them to export goods and there are several restrictions on
motorcycles in China. The rules vary from community to community, but most large
cities ban, or severely limit, motorcycle use in the city center.


Experts say the rules are in place partly because of safety and environmental issues.
Barrett McCormick specializes in Chinese politics at Marquette University. He says
environmental problems can be intensified because Chinese roads are clogged, and most
motorcycles there are dirty:


“Anyone who’s been to China 10 years ago or something, a common site is some horrible
little motorcycle putting down the road, with a big cloud of smoke behind it, and I think that’s
the kind of thing that the Chinese government has regulated to eliminate.”


McCormick says air quality is one of China’s most pressing problems. A recent report
from the World Health Organization says many of the most polluted cities in the world
are in China. It says one of the main sources of air pollution there is motor vehicles
emissions.


Zhixin Wu is with a company that’s working with government agencies to develop
Chinese transportation policies. He says emissions from dirty, small motorcycles in
china account for roughly 50 or 60 percent of emissions in urban areas:


“In China almost all the motorcycles use the two stroke internal combustion engine.”


Wu says that type of small engine is very dirty. But, Harley-Davidson says those bikes
are a far cry from the motorcycles it produces:


“The motorcycles in use in China, I guess I wouldn’t even characterize them as
motorcycles. I would call them two-wheelers.”


Tim Hoelter is the company’s Vice President for International Affairs. He says Harley
bikes easily meet environmental regulations in every market in which they’re sold. And
Hoelter says the company is working with officials in the United States and China to get
this point across:


“Not too long ago the Chinese ambassador to the United States came to Milwaukee and
met with local business people. I sat two seats away from him at dinner, and was able to
talk to him about these riding bans.”


Hoelter says the company is also meeting with American trade officials, and authorities
in the Chinese government, to get the rules changed. He says his company has already
helped ease motorcycle restrictions in other countries, such as Vietnam and India.


Robert Kennedy, from the William Davidson Institute, says Harley-Davidson will
probably be able to get the rules changed in a few years, assuming the regulations have
the inadvertent affect of keeping out Harley motorcycles. He says China has a huge trade
surplus with the United States, and that’s a sensitive political issue.


Kennedy says it’s not unusual for countries to have rules that keep foreign goods out,
even if that’s not their intent:


“The US has some of these regulations that keep out other countries products, and other
countries have regulations that keep out our products. It’s not like under the Romans or
the British where a country would send in the army and force them to buy our goods, it’s
just governments working together to sort out the details to allow trade to happen.


Kennedy says even though most Chinese wouldn’t be able to afford Harley motorcycles,
there are many who could, and as people there become more wealthy, the possibility
exists for a huge market.


For the GLRC, I’m Christina Shockley.

Related Links

Developing New Test for Deer and Elk Disease

Chronic Wasting Disease is killing wild deer and elk. And it’s slowly spreading to new areas in North America. Right now, tests for the disease are done after the animals are dead, but researchers say they might be getting closer to a test that can be given to live animals. The GLRC’s Christina Shockley reports:

Transcript

Chronic Wasting Disease is killing wild deer and elk. And it’s slowly spreading to new areas
in North America. Right now, tests for the disease are done after the animals are dead,
but researchers say they might be getting closer to a test that can be given to live animals.
The GLRC’s Christina Shockley reports on what this might mean in the fight against the disease:


Chronic Wasting Disease, or CWD, causes deer and elk to waste away and die.
The disease is causing hunters and wildlife officials to worry about the
future of the wild deer population. Right now, testing a brain sample from a
dead animal is the sure-fire way to detect the infectious protiens, called prions, that
cause the disease.


Alan Young is a Veterinary Science professor at South Dakota State University.
He’s developing the new test.


“Our ultimate goal is basically to develop a test for infectivity in blood,
by taking a blood sample, and then analyzing for the presence of the infectious prion protein.”


Young says a blood test would let deer and elk farmers know if their herds are
infected before the animals die. He says the research could also lead to a cure for CWD.


For the GLRC, I’m Christina Shockley.

Related Links

Benefits of Eating Fish Outweigh Mercury Risk

A recent study finds that the benefits of eating fish could outweigh the harmful effects of slightly elevated levels of mercury in the body. The GLRC’s Christina Shockley reports:

Transcript

A recent study finds that the benefits of eating fish could outweigh the
harmful effects of slightly elevated levels of mercury in the body. The
GLRC’s Christina Shockley reports:


Mercury from air pollution falls into the water and accumulates in fish.
The toxin can cause health problems and birth defects.


John Dellinger is from the University of Wisconsin- Milwaukee. He
spent 12-years looking at Native Americans, who tend to eat 10 times
more fish than the average American. He says participants had higher
than average levels of mercury in their bodies, but reported few cases of
illness or infection. Dellinger says one reason could be they types of fish
they eat.


“They’re eating primarily a wide variety of fish, and predominantly a
moderate size fish. This is different than the sport fishing person who
goes out on the Great Lakes and is going for the really big fish.”


Dellinger says big fish tend to contain more mercury. He says it’s not
known exactly how much mercury is harmful, but the federal
government says women of child-bearing age, and children, should eat
only two servings per week of fish that are low in mercury.


For the GLRC, I’m Christina Shockley.

Related Links

Harley-Davidson Pushes for Ride in China

Motorcycle maker Harley-Davidson wants China to relax its restrictions on motorcycle use in big cities. The company says that’s the only way its new dealership will be successful in the country long-term. The GLRC’s Christina Shockley reports:

Transcript

Motorcycle maker Harley-Davidson wants China to relax its restrictions
on motorcycle use in big cities. The company says that’s the only way its
new dealership will be successful in the country long-term. The GLRC’s
Christina Shockley reports:


Sound of motorcycle)


Harley-Davidson has opened a new dealership in Beijing hoping to sell
its motorcycles in China, but China limits motorcycle use and ownership
in big cities because of safety concerns and environmental issues.


Tim Hoelter is a vice-president with Harley-Davidson. He says the
company hopes the restrictions will change, over time.


“We of course are hopeful that working with our government partners in
Washington, and working cooperatively with the Chinese ministries to
understand the basis for these bans that over time we can overcome
them.”


Hoelter says the company has been successful in changing bans in other
countries, including Japan… by working with the foreign and U.S
governments.


For the GLRC, I’m Christina Shockley.

Related Links

Migration Season Brings Bird Flu Worries

  • Julie Craves stands in the area where she sets up mist nets during migration to catch land birds. (Photo by Christina Shockley)

Researchers have been monitoring the spread of a potentially deadly strain of avian influenza overseas. Health officials worry the H5N1 strain could mutate into a form that could infect humans. Some researchers say the virus could make its way to the United States as early as this fall… by way of wild migratory birds. The GLRC’s Christina Shockley reports:

Transcript

Researchers have been monitoring the spread of a potentially deadly
strain of avian influenza overseas. Health officials worry the H5N1
strain could mutate into a form that could infect humans. Some
researchers say the virus could make its way to the United States as early
as this fall… by way of wild migratory birds. The GLRC’s Christina
Shockley reports:


Wild birds carry all sorts of influenza viruses. Most are of no threat to
people, but the H5N1 strain is different. When it gets into people… it’s
often fatal. Overseas the strain has killed whole farms of poultry such as
chicken and ducks… it’s also infected other types of animals, including
cats.


The H5N1 strain has not been found in the United States, but most
experts say it’s just a matter of time before it is. Some say infected
domestic poultry or smuggled pet birds will likely bring the virus to the
U.S. Others say the virus could come here by way of migrating birds…
that are on the move now.


Steve Schmitt is the lead veterinarian for Michigan’s Department of
Natural Resources. He says birds from Asia… that are possibly infected
with the H5N1 strain are on their way to Alaska right now. There, they
could mingle with birds that will later fly back to the United States.
Schmitt says there are four major flyways over the U.S.… the Pacific,
central, Mississippi, and Atlantic.


“There are birds that will winter in Asia and then come back and nest in
Alaska. If they bring the virus back with them, then they could transmit
that to birds that are in Alaska that come down any of these four major
flyways, and that of course is a big concern, moving it all over the
country.”


Schmitt says most birds that nest in Alaska use the Pacific flyway along
the Pacific coast… to migrate south to the U.S. and Mexico. He says
that means, if the virus were to come to the United States via migratory
birds, the pacific coast would probably be its first stop in the lower 48.
Schmitt says then, birds that use the other flyways could become
infected.


“Most of the migration is north-south, but you do have a few that will
move – jump over to another flyway, and when that happens, the
potential to move the virus to that new flyway happens. Once it’s in a
new flyway, that north-south movement would take over.”


Programs are underway an Alaska and throughout the United States to
test wild birds for various strains of avian influenza, including H5N1.
Experts say waterfowl and shore birds are the most likely carriers of the
dangerous strain, but some say land birds – such as migrating songbirds –
should be tested, too.


(Sound of birds)


Julie Craves studies land birds at the Rouge River Bird Observatory on
the University of Michigan’s Dearborn campus. She catches and bands
thousands of wild birds each year during their spring and fall migrations.


This year, Craves will participate in a study that hopes to eventually test
hundreds of thousands of birds across the U.S. and Latin America for
avian flu strains.


“It’s just a great opportunity with people handling birds already, we may
find out some very interesting things about which subtypes are present in
land birds, and if indeed this disease does come to North America, we
will have a head start on seeing what types of migratory pathways are
being used by birds.”


Craves says very little is known about how avian flu moves among land
birds, and experts say each time the virus is transmitted to a different
species it mutates, and each time it mutates, the chances are greater that
it will change into a form that’s easily passed among humans. That’s a
big concern, because such a mutation could lead to a quick spread of
human cases across the globe.


But some say that might never occur… they say the strain might be
unable to mutate into one that’s dangerous to humans.


Arnold Monto is a professor of epidemiology at the University of
Michigan. He says there will be a problem if the strain mutates, but it’s
unlikely people will get the virus from migrating birds.


“I doubt very much whether we’re even gong to see even a handful of
cases in the United States, should avian influenza arrive, and it probably
will, with the migratory birds coming down from Alaska, perhaps next
fall.”


Monto says most of the human transmissions overseas have been from
poultry being raised in the back yard, and not from wild birds. That
means visiting the ducks and geese in the park… and feeding songbirds
in the back yard… are not high-risk activities. Monto says people should
take basic precautions, such as washing hands, to avoid contracting any
sort of flu virus.


Many experts say, on the list of things to worry about, catching a deadly
form of avian influenza is no where near the top of the list of dangers.


For the GLRC, I’m Christina Shockley.

Related Links

MIGRATION SEASON BRINGS BIRD FLU WORRIES (Short Version)

  • Julie Craves stands in the area where she sets up mist nets during migration to catch land birds. (Photo by Christina Shockley)

Researchers are tracking a potentially dangerous strain of avian flu in Asia, Europe, and Africa. They say the H5N1 virus could mutate and cause a human pandemic. Experts say domestic poultry or smuggled pet birds could bring the virus into the U.S. Others say it will arrive this fall by way of migratory birds. The GLRC’s Christina Shockley reports:

Transcript

Researchers are tracking a potentially dangerous strain of avian flu in
Asia, Europe, and Africa. They say the H5N1 virus could mutate and
cause a human pandemic. Experts say domestic poultry or smuggled pet
birds could bring the virus into the U.S. Others say it will arrive this fall
by way of migratory birds. The GLRC’s Christina Shockley reports:


Millions of birds will migrate across the globe along major flyways in
the coming weeks. Some birds from Asia will fly to Alaska to reach
summer nesting sites. If those birds carry the H5N1 strain of avian flu
with them, they could transmit the virus to birds that will later stop in the
United States.


Steve Schmitt is the lead veterinarian for Michigan’s Department of
Natural Resources.


“The pacific flyway far and away has the majority of birds that nest in
Alaska and then move south through the fall into Mexico.”


That means if the virus arrives in the lower 48 states via migratory birds,
it would likely arrive first in a state along the Pacific coast.


For the GLRC, I’m Christina Shockley.

Related Links