Saving Salmon From Sea Lions

  • Bobby Begay has been patrolling the Columbia River below Bonneville Dam for the past three years, hazing sea lions. (Photo by Sadie Babits)

The Columbia River in the Pacific Northwest historically has been a super highway for salmon. But dams, development, and pollution have taken their toll on salmon. The fish have declined to the point that several species are endangered. Now the salmon face another threat, sea lions. As Sadie Babits reports wildlife managers are trying to get rid of the sea lions to protect the salmon:

Transcript

The Columbia River in the Pacific Northwest historically has been a super highway for salmon. But dams, development, and pollution have taken their toll on salmon. The fish have declined to the point that several species are endangered. Now the salmon face another threat, sea lions. As Sadie Babits reports wildlife managers are trying to get rid of the sea lions to protect the salmon:

Bobby Begay steers his small boat up the Columbia River. He knows this river, and he
knows the salmon. His ties to the salmon go back generations.

As a member of the Yakima Tribe, he comes out here to tribal fishing sites to catch
salmon. It’s something Indians along the Columbia River have been doing for thousands
of years. He says the salmon are considered sacred food.

“It’s part of our livelihood. It’s part of our health and well being.”

They use the salmon to feed everyone from the tribal elders to the children. Tribal
fishermen tell stories of seeing so many salmon in the Columbia River that you could
walk across their backs. Those days are gone.

A series of dams on the river make it hard for fish to get from the Pacific Ocean to fresh
water and back again. The salmon have fallen victim to over-fishing, agricultural
pollution, and habitat destruction. Pacific salmon are now listed as endangered. And they
face yet another threat on the Columbia River – sea lions.

“Sea lions have probably always been in the Columbia but not to this extent and have
done damage to salmon populations like it has and all of it is due because of a man-made
structure, which is Bonneville Dam.”

Sea lion numbers have exploded along the Pacific Coast. And more than a thousand of
them travel up the Columbia River looking for food. Some of them have figured out that
if they gather at the base of Bonneville Dam, they can easily catch salmon that are trying
to pass by.

Biologists estimate that every year sea lions eat some 13,000 salmon. This year, the
federal government gave state wildlife agencies in Oregon, Washington and Idaho, the go
ahead to kill up to 85 sea lions.

Begay won’t really talk about whether he thinks this is right. He’s torn.

“Well, ah, sea lion is a spiritual animal not only to us but to coastal tribes and we respect
the animal as it is, but also the salmon is a scared food to us as Columbia River Indians.”

So Begay works to protect the salmon without killing the sea lions. He works for the
Columbia River Inter-Tribal Fish Commission.

That’s why he’s out here in this boat. He patrols the river most days using fireworks to
scare sea lions away from the salmon.

Crew: “There he is 1 o’clock, 50 yards.”

(sound of gun shots and boat)

Begay’s crew shoots firecrackers over the sea lion.

“And hopefully we’ll get them into the main stem of the river and start hazing them down
stream.”

“The hazing really is not highly effective. The animals are really quick to learn.”

Robin Brown is a marine mammal researcher for the Oregon Department of Fish and
Wildlife.

Brown says they’ve euthanized seven sea lions this year. He says the decision to kill a sea
lion is made after everything else has failed.

“We have to have observed them killing salmon and steelhead, and they have to have
been exposed to all the non-lethal methods of harassment that you’ve observed here
today and shown that that isn’t detouring them from being here and feeding.”

The Humane Society opposes killing the sea lions. It’s asked the courts to put a stop to it.
While this legal battle plays out, Bobby Begay will keep hazing the sea lions until the end
of May.

That’s when the sea lions leave the dam and head back down the Columbia River to the
Pacific Coast to breed.

For The Environment Report, I’m Sadie Babits.

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EPA Rules on Pesticide Residue

  • One crop that Carbofuran was used on is potatoes (Photo by Scott Bauer, courtesy of the USDA)

The Environmental Protection Agency says no amount of the pesticide carbofuran is safe on food. Mark Brush has more on the new EPA rule:

Transcript

The Environmental Protection Agency says no amount of the pesticide carbofuran is safe on food. Mark Brush has more on the new EPA rule:

The EPA has been phasing out this insecticide, but it’s still used on some crops like rice, corn, and potatoes.

When people are exposed to carbofuran, it can cause damage to the nervous system. And the EPA is particularly worried about kids exposure when eating food or when drinking water near treated farm fields.

Potato farmers say they use carbofuran to kill bugs that resist other pesticides.

John Keeling is the CEO of the National Potato Council. He says they were hoping the EPA would let them keep using it.

“We had tried to work with the agency to modify use patterns, or limit the use to particular areas, so that we could continue to use the product – but they obviously didn’t continue in that direction.”

FMC Corporation makes the chemical. Officials there issued a statement saying they’ll fight the EPA’s new rule.

For The Environment Report, I’m Mark Brush.

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Whose Nature Are We Talking About?

  • Several neighbors near Cook County Illinois' Bunker Hill Forest Preserve are concerned about the loss of trees. Bathsheba Burmin is third from the left. (Photo by Shawn Allee)

When somebody says a natural area, does everybody have the same thing in mind? Some might see a park with baseball fields or a golf course as a natural area. But natural area means what it looked like for hundreds or thousands of years before humans started changing the landscape. Sometimes, that natural landscape was changed so long ago, when it’s restored to the way it looked oringally, it’s not very familiar to the people who live there now. Shawn Allee talked with some people who disagree about the idea of restoring natural areas:

Transcript

When somebody says a natural area, dose everybody have the same thing in mind? Some might see a park with baseball fields or a golf course as a natural area. But natural area means what it looked like for hundreds or thousands of years before humans started changing the landscape. Sometimes, that natural landscape was changed so long ago, when it’s restored to the way it looked oringally, it’s not very familiar to the people who live there now. Shawn Allee talked with some people who disagree about the idea of restoring natural areas:

If you go to the Bunker Hill Forest Preserve just outside Chicago, you find picnic spaces, bike trails, and woods – acres of woods.

If it’s the wrong day, though, a security guard will turn you back from the woods.

Guard: “Closed off for a while? It’s closed off for a while. They’re doing a controlled burn – they’re burning that field over there.”

Man: “What are you doing exactly? Burning?”

Guard: “Controlled burn.”

Forest preserve workers in sooty, yellow fire suits are burning brush and trees.

They say soil tests show this land was once savanna – a kind of grassland with a few trees mixed in.

They’re trying to restore it to that original landscape.

Volunteers help out with this restoration, but a small number of people want to stop it.

“Everything they burned today is area they’ve cleared over the past two years. We’re opposed to cutting our urban forests.”

Bathsheba Burmin shows me the site – after it’s cooled.

She wants me to see what it takes to turn woods into savanna.

Burmin: “It’s a little muddy, so…”

Allee: “It’s hard not to notice.”

(sounds of walking through mud)

Allee: “This place is being actively transformed.”

Burmin: “Yes.”

Allee: “You can see brush piles moved around, trees have obviously been cut because you can see the stumps, and obviously they burned just today.”

Burmin: “What it does is tell the story of what the restructuring of an ecosystem looks like.”

Burmin and a few of her neighbors have protested the transformation of these woods into savanna.

Some don’t believe this was ever grassy savanna in the first place.

Burmin says, even if it was savanna – it’s not now; it’s woodland – and she regrets losing the trees.

Burmin: “If you’re not familiar with the site and you hear there’s an increase in grassland species you must be doing something wonderful. Nobody talked about what happened to all the woodland species. The reason you have an increase in grassland species, but that’s because you took out all the forest.”

Habitat restoration can be violent.

It can involve poisoning or burning unwanted plants or maybe killing animals like deer that graze on more desirable plants.

Wildlife managers use restoration techniques all the time, but on occasion critics like Burmin ask tough questions about it.

When that happens, people like Stephen Packard rush to its defense.

“Now we’re standing in a place where all the brush was cut last year.”

Packard heads the Chicago chapter of the Audobon Society.

He’s offered to show me some restored savanna, about ten miles north of that Bunker Hill spot.

It looks kinda familiar.

Allee: “There’re stumps and sticks everywhere.”

Packard: “Is this ugly or is it not ugly? Here’s my perspective on it. To me it’s like a bunch of broken eggshells after someone made an omelet. I think this is a beautiful thing to see the first stage of recovery. It is stumps, it is bare ground, but from doing this, I know certain plants will start to come up and keep developing.”

Packard says no one restores savanna because they like chopping trees.

It’s just that some plants need open space and light – like in a savanna. Dense woods create too much shade for them.

He says if we let some natural areas literally run wild, a few aggressive species take over, and the rare ones lose out.

“You lose millions of years of evolution of these thousands of species that may be important to the planet, so why not have some places where we can take care of them?”

Packard says some natural areas are so unhealthy, that for now, we need to protect some parts of nature from others.

And if you don’t buy that – you don’t buy restoration.

For The Environment Report, I’m Shawn Allee.

Related Links

Study: 1/4 of World’s Mammals at Risk

  • A study finds that 25% of all mammals are threatened with extinction (Photo courtesy of the US Fish and Wildlife Service)

A new survey shows that at least
one fourth of the world’s wild mammal
species are at risk of extinction. Julie
Grant reports that scientists find human
activities are largely to blame:

Transcript

A new survey shows that at least
one fourth of the world’s wild mammal
species are at risk of extinction. Julie
Grant reports that scientists find human
activities are largely to blame:

The mammal survey took five years, and 1,700 experts in
130 countries to complete. Their results are just being
published in the journal Science.

Jan Schipper of Conservation International is a lead author.
He says the assessment paints a bleak picture.

“It was in fact surprising to find out that 25% of all mammals,
to which we currently have sufficient information, are
threatened with extinction, meaning they are either critically
endangered, endangered, or vulnerable.”

Schipper says hotbeds for extinctions are in Southeast Asia,
Africa and Central and South America – and it is largely
driven by consumers.

For example, if we demand bananas in the middle of winter,
it drives growers to cut down native forests for banana
plantations – but without those native forests, many
mammals are left without a place to live.

For The Environment Report, I’m Julie Grant.

Related Links

Testing a Better Bug Spray

  • The USDA is testing a new bug spray to ward off mosquitos and other pests (Photo by Lester Graham)

Researchers are working on new chemicals
to keep mosquitoes from biting. The Environment
Report’s Mark Brush reports they might have found
a better alternative to DEET:

Transcript

Researchers are working on new chemicals
to keep mosquitoes from biting. The Environment
Report’s Mark Brush reports they might have found
a better alternative to DEET:

The EPA says DEET is safe to use on your skin. But the repellent’s smell and stickiness
turns some people off. And spraying DEET on your skin won’t protect you from all types
of mosquitoes.

So researchers are working on alternatives.

Uli Bernier is research chemist with the USDA. He says their research team is looking
for a compound that will work against some of the most dangerous mosquitoes.

“DEET works against a great variety of insects, but not against all of them. And in
particular some of the malaria transmitting mosquitoes will bite through DEET without
difficulty.”

Bernier says their research has turned up some chemicals that do a better job than DEET.
The chemicals keep mosquitoes from biting for up to three times longer. Bernier says their
next step will be to test the chemicals for possible human health effects and for their
effectiveness on other insects.

(mosquito buzzing sound)

For The Environment Report (sound of swat) – gotcha – I’m Mark Brush.

Related Links

Warmer World Brings Health Worries

  • The back of a female patient with a doctor who is using a stethoscope to listen to her lungs. (Photo courtesy of the National Cancer Institute)

Public health advocates say governments and
individuals should take more precautions as global
warming continues. Chuck Quirmbach has more:

Transcript

Public health advocates say governments and
individuals should take more precautions as global
warming continues. Chuck Quirmbach has more:

Most scientists say a warmer climate will bring some good things for public health, like
longer food growing seasons in parts of the world. But Dr. Georges Benjamin also
believes the forecasts of what bad things might happen.

“We know that climate change certainly could increase air pollution, leading to increases
in things like asthma, allergy and chronic obstructive pulmonary disease”

Benjamin heads the American Public Health Association. The group is issuing a
blueprint for health professionals and the public to combat climate change.

The effort includes calls for government to provide more shelter and health monitoring
during heatwaves, and recommendations for people to be more careful during high
temperatures and heavy rainfalls. The group will also urge Congress to consider health
issues when it debates legislation to curb global warming.

For The Environment Report, I’m Chuck Quirmbach.

Related Links

Beach Bacteria Can Cause Closings

Even if it’s safe to go in the water at your local beach, the sand
might harbor bacteria. Rebecca Williams reports a new study finds
contaminated sand could cause beaches to be closed to swimmers:

Transcript

Even if it’s safe to go in the water at your local beach, the sand
might harbor bacteria. Rebecca Williams reports a new study finds
contaminated sand could cause beaches to be closed to swimmers:


If officials find the bacteria E. Coli or Enterococci in beach water,
they usually close the beach. That’s because at high levels, those
bacteria can make swimmers sick. A new study found those two types of
bacteria can be common in beach sand.


Alexandria Boehm is the author of the study in the journal
Environmental Science and Technology. She says the bacteria in sand
can occur naturally, but they can also come from human or animal waste.


She found that bacteria in sand can get stirred into the water at high
enough levels to trigger beach closings:


“If sand is the source of pollution at these beaches it makes
remediation very difficult because we don’t really know how to clean up beach
sand.”


Boehm says more studies are needed to know if people can get sick by
being exposed to bacteria in sand.


For the Environment Report, I’m Rebecca Williams.

Related Links

Nanotech Nervousness

  • Researchers are studying whether nano-sized material could purge bacteria from the digestive tracts of poultry. The bacteria doesn't harm chickens and turkeys, but it can make people sick. The hope is that using nanoparticles could reduce the use of antibiotics in poultry. (Photo courtesy of USDA)

Nanotechnology is the science of the very, very small. Scientists are
finding ways to shrink materials down to the scale of atoms. These
tiny particles show a lot of promise for better medicines, faster
computers and safer food. But Rebecca Williams reports some people are
worried about harmful effects nano-size particles might have on
people’s health and the environment:

Transcript

Nanotechnology is the science of the very, very small. Scientists are
finding ways to shrink materials down to the scale of atoms. These
tiny particles show a lot of promise for better medicines, faster
computers and safer food. But Rebecca Williams reports some people are
worried about harmful effects nano-size particles might have on
people’s health and the environment:


Life on the nano scale is so tiny it’s hard to imagine. It’s as small
as 1/100,000 of a human hair. It’s as tiny as the width of a strand of
DNA. A nanoparticle can be so small it can actually enter cells.


Nanoparticles are loved by scientists and entrepreneurs for the novel
things they can do at those tiny sizes. They act differently. They
can go where larger particles can’t.


Many companies already sell new products with nano properties. The
Project on Emerging Nanotechnologies says there are almost 500 products
on the market that use nanotechnology.


Some of those products are starting to show up in the grocery store.


Jennifer Kuzma is with the Center for Science, Technology and Public
Policy at the University of Minnesota. She tracks nanotech
developments in food and agriculture. She says there are some edible
nano products on store shelves right now:


“One is a chocolate shake that is a nano emulsion of cocoa molecules so
you can deliver more flavor for less of the cocoa product.”


Kuzma says that’s just the beginning. She says hundreds more nano
products, including a lot of food products, are on their way to market.
In many cases, scientists are looking for solutions to food safety
problems.


For example, bacteria in the intestines of chickens and turkeys can
make people sick when poultry is undercooked. Right now farmers treat
their birds with antibiotics. But as bacteria are becoming resistant
to antibiotics, scientists are looking for other methods to fight the
bacteria.


Jeremy Tzeng is a research scientist at Clemson University. He’s part
of a team developing what he calls intelligent chicken feed.
Basically, chickens would be fed a nanomaterial that attaches to
molecules on the surface of the harmful bacteria. Then the bacteria
could be purged from the chicken along with fecal matter:


“If we use this physical purging, physical removal, we are not using
antibiotics so the chance of the microorganism becoming resistant to it
is really small.”


Tzeng says his research is still in its early stages. He says there
are a lot of safety tests he needs to run. They need to find out if
the nanomaterial is safe for chickens, and people who eat the chickens.
And they need to find out what happens if the nanomaterial is released
into wastewater.


“As a scientist I love to see my technology being used broadly and very
quickly being adopted. But I’m also concerned we must be cautious. I
don’t want to create a miracle drug and then later it becomes a problem
for the long term.”


There are big, open questions about just how safe nanoparticles are.


Researcher Jennifer Kuzma says there have been only a handful of known
toxicology studies done so far. She says nanoparticles might be more
reactive in the human body than larger particles:


“There’s several groups looking at the ability of nanoparticles to
damage, let’s say your lung tissue. Some of the manufactured or manmade nanoparticles are thought to have greater abilities to get into the
lungs, penetrate deeper and perhaps damage the cells in the lungs, in
the lung tissue.”


In some cases, it’s hard for the government to get information about new
nano products. Kuzma says companies tend to keep their own safety data
under lock and key:


“Some companies might send you the safety studies if you ask for them. Others may not
because they of course have interests in patenting the technology and
confidential business information.”


So the government doesn’t always know all that much about what’s
heading to market. Agencies are trying to figure out how – and even
whether – to regulate products of nanotechnology. Right now, there are
no special labeling requirements for nano products.


In the meantime, nanotechnology is turning into big business. Several
analysts predict that just three years from now, the nanotech food
market will be a 20 billion dollar industry.


For the Environment Report, I’m Rebecca Williams.

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States Seek to Ban Internet Hunting

  • Live-shot.com is a website providing a "Real Time, Online, Hunting and Shooting Experience." Many states are proposing legislation to ban web hunting, saying that it's unsportsmanlike.

A new kind of hunting has already been outlawed in at least one state… and could be in others soon. Hunters, lawmakers, and animal rights activists say the practice is inhumane. The Great Lakes Radio Consortium’s Christina Shockley
reports:

Transcript

A new kind of hunting has already been outlawed in at least one state… and could be in others soon. Hunters, lawmakers, and animal rights activists say it’s inhumane. The Great Lakes Radio Consortium’s Christina Shockley reports:


John Lockwood has created the web site “live shot dot com.” For a fee, users can control a gun from their computer to shoot animals on his Texas ranch. Critics say it doesn’t allow for a fair hunt.


But Lockwood says it closely resembles an “in-person” hunt because someone is on-site. He says that person sits in a blind with the user-operated gun and acts as the user’s guide.


“The animal still has the same chance of detecting you, you know the human scents as he would in any hunting situation. It’s not like all that’s out there is this inanimate object that’s aiming and shooting. It’s just like if somebody was there hunting.”


Lockwood says he created the site to help people who couldn’t get out to hunt, like the disabled. He says the online hunters must have a valid Texas hunting license.


But lawmakers in several states have introduced legislation to ban the practice.


For the GLRC, I’m Christina Shockley.

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Banking on Birch Bark

  • David Peterson is president of NaturNorth Technologies. The business is a spinoff from the University of Minnesota-Duluth's Natural Resources Research Institute. It has a patent on a process to extract large quantities of pure betulin, a component of birch bark. (Photo by Stephanie Hemphill)

A start-up company is banking on birch bark. The papery bark can be used for more than baskets and canoes. It’s used in skin creams, and scientists are studying it for use in treating skin rashes and even cancer. But Native American healers have been using birch bark for years, and some of them are worried about the supply. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

A start-up company is banking on birch bark. The papery bark can be used for more than baskets and canoes. It’s used in skin creams, and scientists are studying it for use in treating skin rashes and even cancer. But Native American healers have been using birch bark for years, and some of them are worried about the supply. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:


Have you ever noticed – walking in the woods – those cylinders of bright white bark, lying on the forest floor? Those are the remains of a birch tree. The inside of the tree rots away quickly, but the bark lasts much longer.


“The birch tree has some incredible defense mechanisms that protect the tree from weather, from rain, from sun, keep the moisture in, keep moisture out.”


David Peterson knows birch trees pretty well. He was a top manager at the Potlatch Paper Mill near Duluth, Minnesota. The plant processes thousands of trees every day, and burns the bark to make steam.


“I always was interested in trying to come with a way of using some of these low value waste streams generated from pulp paper mills and other places, it seemed like such a horrible waste, to take these really interesting compounds and put them in a boiler for boiler fuel.”


Peterson’s new company, NaturNorth Technologies, plans to make something worth a lot more than boiler fuel. The company has patented a process to extract large quantities of a chemical, betulin, that gives birch bark its anti-bacterial and anti-fungal qualities.


Mill workers remove bark from a tree that’s harvested for lumber or paper-making. It’s shredded into pellets, and put through a chemical process that extracts the betulin. It ends up looking something like salt.


“Here’s a sample of betulin, and you can see how bright and white it is. It’s got a chalky feel when you touch it.”


Apparently, what birch bark does for the birch tree, it can also do for human skin – protect it from the assaults of the physical world. Betulin is already used in some creams and cosmetics, but NaturNorth plans to be the first company in the world to market it on a large scale.


The idea of selling lots of betulin from birch bark makes Skip Sandman nervous. He’s a Native American traditional healer for the Mille Lacs Band of Ojibwe. He uses birch bark for medicine. He says it’s a pain-killer and blood-thinner and can be used for intestinal disorders.


“Fortunately, when people use it for medicines and stuff, one small tree does go a long way. But you might have to travel 15, 20 miles to find the right type of tree.”


Sandman says the bigger trees – ten to twelve inches in diameter – have a bigger supply of the properties he uses in medicine. And lately he’s had to go farther to find those big trees. He says that’s because timber companies have cut down so many of the big trees and now they’re working on smaller and smaller trees.


“But you see the logging trucks go by, and they’re just whacking down everything. Well they think it’s only a tree. But when the trees are gone, then what do we do?”


Sandman says in the Ojibwe creation story, each plant and animal promised to help people in some way, and birch trees offered their healing qualities. He says it’s important to use them respectfully, and not for profit, but only to help people. He says he approaches the tree with an offering of tobacco.


“I will put tobacco down and ask and talk to that tree, because it is alive.”


The folks at NaturNorth are hoping to make money from birch trees, but they’re also excited about helping people. David Peterson says he gets letters from people who want some betulin to treat a skin condition.


“When you get those letters, you can’t help but to feel that somebody out there that’s gonna benefit eventually from these compounds, I think it’s quite sobering and humbling.”


NaturNorth has started marketing betulin to cosmetics companies, and scientists are studying betulinic acid for its disease-fighting potential. Peterson says it’ll be several years before NaturNorth generates a profit.


For the GLRC, I’m Stephanie Hemphill.

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