Published 7 days ago • Updated 3 days ago

Scientists discover 'potential breakthrough' in protecting salmon from urban killer

King County scientists announced a potential breakthrough in saving coho salmon from toxic tire dust in urban streams, which has been choking them before they can spawn.
Toxic tire dust, specifically the chemical 6PPD-quinone created when tires interact with ozone, was identified as the cause of death for 40% to 90% of returning coho in some urban streams.
A recent King County study showed preliminary results indicating that certain soil mixes containing sand, coconut fiber, and biochar can effectively filter the toxic chemical from stormwater, significantly boosting coho salmon survival rates.
Chelsea Mitchell, a senior ecotoxicologist with King County, stated that concentrations of just a few drops of the pollutant in an Olympic-sized swimming pool could kill half of the coho population.
Researchers exposed juvenile coho to treated and untreated stormwater, with only one or two surviving the untreated runoff, while all 20 survived exposure to the treated water, and King County is working to identify high-risk roadways and areas needing stormwater treatment, hoping to see more treatment projects by 2027 or 2028.

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Phys.org

+3 Reposted by 3 other sources

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Scientists discover 'potential breakthrough' in protecting salmon from urban killer

For decades, toxic tire dust has choked coho salmon before they can spawn in their natal streams. Now, King County scientists say they have made a "potential breakthrough" in how to save them.

4 days ago·United Kingdom

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Cosmos Science

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“Inside-out” fossil preserves internal organs for 440 million years

Sue is an inside-out, legless, headless wonder. Apologies to any people named Sue. The ‘Sue’ is the fossil of a creature which lived 440 million years ago. The fossil’s discovery is announced in a new paper published in the journal Palaeontology which identifies it as belonging to a new species, Keurbos susanae. The organism is named after the discoverer’s mother, Sue. The fossil of Keurbos susanae, or Sue, in the rock. Credit: University of Lei…

5 days ago·Washington, United States

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BroBible

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Scientists Discover New Species: An 'Inside-Out, Legless, Headless Wonder'

new species fossil Keurbos susanae A paleontologist discovered a new species of fossil from 444 million years ago she calls an “inside-out, legless, headless wonder.” This new species of multi-segmented fossil and has officially been named Keurbos susanae, or “Sue” for short. The discovery of this new species is a result of 25 years of work by a palaeontologist named Sarah Gabbott. Gabbott is a professor at the University of Leicester School of …

6 days ago

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Live Science

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Scientists uncover 'inside-out, legless, headless wonder' that lived long before the dinosaurs

Fossils of 444 million-year-old creatures whose bodies were preserved "inside-out" have been discovered in South Africa.

6 days ago·United States

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The Seattle Times

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Scientists discover ‘potential breakthrough’ in protecting salmon from urban killer

The scientific discovery is gratifying for those who have watched in agony as coho salmon have died in urban streams for decades.

6 days ago·Seattle, United States

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thestute.com

Killer whale spotted balancing a salmon on its head, intriguing scientists and orca watchers

An orca was spotted balancing a salmon on its head in late October near Washington’s Kitsap Peninsula, according to the Orca Network. This specific killer whale is known to marine biologists and whale watchers as J27, also known as Blackberry. However, this isn’t the first time that a killer whale was seen with a “salmon

3 days ago

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