Portland State researchers say Columbia River conditions suitable for invasive mussels

Feb 18, 2013

(AP)—Researchers from Portland State University say the Columbia River has suitable conditions for invasive freshwater mussels to grow if they get a toehold.

The researchers told the Northwest Power and Conservation Council on Thursday that the water chemistry and temperatures are suitable for quagga and zebra mussels to grow if they get introduced. The Willamette River is marginal due to lower calcium levels. The researchers are also experimenting with paints that would make it tougher for the mussels to form thick crusty mats on submerged surfaces.

The mussels have wreaked havoc on docks, dams, and freshwater ecosystems from the to the Southwest, but so far have not invaded the Northwest.

Oregon and other states inspect boats crossing their borders to prevent an invasion.

Researchers from Portland State University say the has suitable conditions for invasive to grow if they get a toehold.

The researchers told the Northwest Power and Conservation Council on Thursday that the water chemistry and temperatures are suitable for quagga and zebra mussels to grow if they get introduced. The Willamette River is marginal due to lower calcium levels. The researchers are also experimenting with paints that would make it tougher for the mussels to form thick crusty mats on submerged surfaces.

The have wreaked havoc on docks, dams, and freshwater from the Great Lakes to the Southwest, but so far have not invaded the Northwest.

Oregon and other states inspect boats crossing their borders to prevent an invasion.

Explore further: Thirteen corporations control up to 40 per cent of world's most valuable fisheries

Related Stories

New map outlines risk of zebra mussel invasion

Dec 03, 2007

The spread of two invasive alien freshwater mussel species – the zebra mussel and the quagga mussel – appears to be controlled in part by calcium levels in streams and lakes and a new risk assessment based on water chemistry ...

Zebra mussels hang on while quagga mussels take over

Jun 12, 2009

The zebra mussels that have wreaked ecological havoc on the Great Lakes are harder to find these days — not because they are dying off, but because they are being replaced by a cousin, the quagga mussel. But zebra mussels ...

Northwest fears that invasive mussels are headed its way

Aug 26, 2009

Highly invasive mussels are lurking on the Northwest's doorstep, threatening to gum up the dams that produce the region's cheap electricity, clog drinking water and irrigation systems, jeopardize aquatic ecosystems and upset ...

Recommended for you

How DNA is helping us fight back against pest invasions

2 hours ago

They are the original globe trekkers. From spiders bunking along with humanity's spread into south-eastern Asia, to sea squirts hopping on military craft returning after the Korean War, invasive species have enveloped the globe. ...

Conservation theory gets mathematical treatment

3 hours ago

Theories used for the last four decades as a tool to guide the conservation of flora and fauna may have misinterpreted the biological reality, according to new research by mathematicians at the University ...

Ecuador seizes 200,000 shark fins

4 hours ago

Ecuador seized around 200,000 shark fins and arrested three suspected traffickers at the country's main fishing port, the government said Wednesday.

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

Genkigirll
not rated yet Feb 18, 2013
Wow! It's like getting two articles for the price of one ^___^

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.