Tag: conservation officials

New Fish Virus Becoming Long-Term Threat?

Biologists are concerned a new fish virus may become an ongoing threat in the Great Lakes. The virus caused a fish die-off in Lake Ontario and the St. Lawrence River last month. The GLRC’s David Sommerstein reports:

Transcript

Biologists are concerned a new fish virus may become an ongoing threat in the Great Lakes.
The virus caused a fish die-off in Lake Ontario and the St. Lawrence River last month.
The GLRC’s David Sommerstein reports:


Viral Hemorrhagic Septicemia is common in saltwater fish in the Pacific Northwest,
but somehow the virus hopped into the freshwater fish of Lake St. Clair and Lake Ontario
last year. Then, last month, the virus killed hundreds of fish in the St. Lawrence River.
Scientists are trying to determine if the virus is a long-term threat to the Great Lakes
fishery:


“You know, that’s kind of the million dollar question.”


John Farrell directs the Thousand Islands Biological Station. He says many
fish species may become infected with the virus but not show symptoms:


“They may serve as a reservior for the virus. There’s a potential
that the virus could cycle over time, but may be with us for a long time to come.”


Conservation officials are most worried about muskies, trout and salmon – native
fish that anglers love to catch.


For the GLRC, I’m David Sommerstein.

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New Maps Predict Wolf Attacks

Wolf populations are on the rise. Conservation officials say that’s a victory for wildlife. But more wolves mean more encounters with farms and livestock. Now, a group of researchers has developed maps to predict where wolves might attack. The Great Lakes Radio Consortium’s Corbin Sullivan has more:

Transcript

Wolf populations are on the rise. Conservation officials say that’s a victory for wildlife. But more
wolves means more encounters with farms and livestock. Now, a group of researchers has developed
maps to predict where wolves might attack. The Great Lakes Radio Consortium’s Corbin Sullivan has
more:


In a study published in the journal Conservation
Biology, the researchers mapped wolf attacks on
livestock in Wisconsin and Minnesota. They compared
the areas with the most attacks to those with the least.


The maps show that farms with the largest pastures and
the largest herds are at high risk for wolf attacks.


Nearby deer populations also put farms at higher risk.


Adrian Treves helped develop the maps. He says they
can help farmers and state officials focus their efforts to
prevent wolf attacks.


“Instead of diverting time and staff and resources across
the entire range of the wolves, they can choose to invest
their efforts in areas that are moderate to high risk.”


Treves says farmers can choose to use guard animals or
improved fencing to ward off wolf attacks. He says loud
recorded sounds, such as helicopters and gunfire, also
deter wolves.


For the Great Lakes Radio Consortium, I’m Corbin
Sullivan.