How safe are Great Lakes fish to eat? Depends on who you ask

Catching and eating fish is a way of life for many people around the Great Lakes and connecting St. Lawrence River, but decades of industrial pollution have made it unsafe to eat too many, too often. The advice about how many and how often can vary wildly depending on which jurisdiction, even though the fish don’t care about the lines humans draw on a map.

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Original Article

Great Lakes Now

Great Lakes Now

https://www.greatlakesnow.org/2024/02/how-safe-great-lakes-fish-to-eat-depends-on-who-you-ask/

Brian Owens, Great Lakes Now

We’re going to need a bigger fishbowl

A tiny goldfish might look cute in a fishbowl on your shelf, but if released into the wild it can grow to a terrifying size and become a menace to the ecosystem. They eat pretty much anything and everything, root up plants causing the water to become cloudy and dark, and reproduce and grow so quickly that almost no predators can stop them.

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Original Article

Great Lakes Now

Great Lakes Now

https://www.greatlakesnow.org/2023/11/were-going-to-need-a-bigger-fishbowl/

Brian Owens

Some banned pesticides fade from Great Lakes air, while others persist

Two recently banned pesticides have all but disappeared from the atmosphere around the Great Lakes, while others phased out decades ago are still hanging around.

Marta Venier, an environmental chemist at Indiana University, and her team looked at air samples taken every 12 days since 1990 by the Environmental Protection Agency around the Great Lakes region, which measure the atmospheric concentration of hundreds of compounds, including pesticides, PCBs, and other persistent chemicals.

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Original Article

Great Lakes Now

Great Lakes Now

https://www.greatlakesnow.org/2023/03/some-banned-pesticides-fade-from-great-lakes-air-while-others-persist/

Brian Owens

Lake sturgeon added to endangered list, but things are looking up

Lake sturgeon, one of the largest and oldest species of fish in the Great Lakes, are in more trouble than we thought.

In December, the International Union for the Conservation of Nature downgraded its status from Least Concern to Endangered based on shrinking populations over the past three generations, which is between 250 and 300 years for this long-lived fish.

Read Now at Great Lakes Now.

Original Article

Great Lakes Now

Great Lakes Now

https://www.greatlakesnow.org/2023/02/lake-sturgeon-added-to-endangered-list-but-things-are-looking-up/

Brian Owens

AI technology could be used to monitor invaders in the Great Lakes

Invasive zebra and quagga mussels are firmly established in the Great Lakes, and efforts to control them have proved mostly fruitless. But environmental managers still want to know where they are, how many there are and what they are up to, so they can predict how the ecosystem will be affected and protect vital infrastructure.

Read Now at Great Lakes Now.

Original Article

Great Lakes Now

Great Lakes Now

https://www.greatlakesnow.org/2022/05/ai-technology-invaders-great-lakes/

Brian Owens

Lake heatwaves driven by human-caused climate change

Just like the atmosphere and the ocean, lakes can be subject to extreme spikes in temperature, and new research shows that the vast majority of these heatwaves over the past 25 years are the result of human-caused climate change.

Iestyn Woolway – a climate scientist at Bangor University in Wales – and his colleagues analysed satellite data of surface temperatures in lakes around the world, including the Great Lakes, to identify when and where heatwaves occurred since the satellites came online in 1995.

Read Now at Great Lakes Now.

Original Article

Great Lakes Now

Great Lakes Now

https://www.greatlakesnow.org/2022/03/lake-heatwaves-human-climate-change/

Brian Owens