Invasive Species

Carp Removal Project
7:25 am
Tue June 10, 2014

Cut The Carp: Turning Around Malheur Refuge One Carp Carcass At A Time

Invasive carp taken out of Malheur Lake are measured for height and weight to better understand the invasive fish that refuge staff are trying to reduce.
Credit Devan Schwartz / EarthFix

What could be the largest carp removal project in history is underway at the Malheur National Wildlife Refuge in Southeast Oregon.

EarthFix’s Devan Schwartz reports on the attempts to curb the invasive fish that has destroyed bird habitat for decades.

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Invasive Stink Bug
7:54 am
Fri November 1, 2013

Stink Bug Spread Alarms to Growers And Scientists

Invasive stink bug on an olive branch in the Willamette Valley
Vaughn Walton, OSU

A malodorous invasive bug has gone from a worry to a certifiable nuisance for some Northwest farmers and gardeners. The name of this insect is a mouthful: the brown marmorated stink bug. Researchers say the population really seems to have taken off this year. With the approach of winter, these stink bugs are leaving the fields and may just crawl into your home.

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Oregon Christmas Trees
4:47 pm
Thu October 31, 2013

Plum Assignment: Inspecting Oregon Christmas Trees In Hawaii

Oregon is the nation's leading Christmas tree producer.
Oregon Department of Agriculture

Originally published on Thu October 31, 2013 4:35 pm

A trio of Oregon entomologists has a plum assignment this holiday season. They're heading to Hawaii to help spot pests trying to hitch a ride to paradise on the branches of Oregon-grown Christmas trees.

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Red Swamp Crayfish
6:12 am
Mon July 15, 2013

Fighting (And Cooking) Invasive Crayfish In Northwest Waters

Red swamp crayfish aren't native to the Northwest but where they've been introduced, they're taking over.
Credit Ashley Ahearn

Gumbo and Jambalaya may not be at the top of traditional Northwest menus, but if the invasive red swamp crayfish has its way, that could change. The crayfish – also known as a crawfish or crawdad – is native to the Southeastern U.S. and the Gulf Coast.

But over the past decade this firey-clawed, and delicious, crustacean has moved in on Northwestern lakes. Ashley Ahearn reports for EarthFix.

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Cheatgrass Invasion
7:18 am
Mon May 13, 2013

Study: Cheatgrass Severity Affected By Grazing

A new study out of Oregon State University suggests that overgrazing could be helping an invasive grass to flourish. That differs from previous studies that have found grazing can better manage that plant -- cheatgrass -- which threatens rangeland habitat. For EarthFix, Courtney Flatt has more.

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Zebra Mussels
5:29 pm
Fri March 29, 2013

Preparing for Zebra Mussels in the Pacific Northwest

Zebra mussels
Credit U.S. Geological Survey website

Invasive zebra mussels could soon be heading toward the Pacific Northwest. So, researchers are working to protect and prepare the region’s waterways.

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Japan Tsunami Debris
4:13 pm
Wed February 6, 2013

Boat Washed Ashore Near Newport Possible Tsunami Debris

Justin Ainsworth, ODFW biologist, inspecting the boat that washed up on Gleneden Beach.
Credit Oregon Office of Emergency Management

A boat that washed ashore on Gleneden Beach near Newport on the Central Oregon Coast appears to be debris from the March 2011 Japan tsunami.

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Tsunami Dock
6:16 pm
Thu January 3, 2013

Biologists Try To Clean Invasive Species Off Tsunami Dock

Scientists inspect the marine life clinging to the dock.
Credit National Park Service

Federal and state biologists are trekking back to a remote beach in Olympic National Park where a large dock washed ashore. The concrete and steel dock appears to have drifted across the Pacific Ocean after last year's tsunami in Japan.

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Diving Ban
5:52 am
Thu August 30, 2012

Crater Lake National Park Bans Scuba Diving, Fearing Invasives

National park officials have abruptly closed Crater Lake to scuba divers. They say they need time to develop rules to keep invasive species out of the Southern Oregon lake. Amelia Templeton of Earthfix reports.

Scuba diving in Crater Lake is tricky. The lake sits on the Cascade crest at about 6,000 feet. So divers have to take precautions to handle the elevation. And then there’s the steep, rocky trail to the lake shore. Diver Walt Bolton says it’s worth the hike.

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Tracking Feral Pigs
5:32 pm
Mon July 23, 2012

Northwest States Ask Public To 'Squeal' On Feral Pigs

When domesticated pigs escape their sties, their physical appearance actually changes.
U.S. Fish & Wildlife Service

Washington, Oregon and Idaho are joining forces to track populations of feral pigs across the Northwest. These “hogs gone wild” can do massive damage to the landscape. And wildlife agents want to know where swine are on the move. They’re even launching a so-called “swine line” for people to call with sightings.

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