More Invasive Quagga Mussels Found Again In Snake River, Idaho To Respond With Chemical Treatment Plan
September 27th, 2024
The Idaho State Department of Agriculture announced this week the detection of a small number of quagga mussels in the Twin Falls area of the Snake River.
Last Year’s Snake River Invasive Mussel Incident Has F&W Managers On High Alert; Widespread Infestation Poses Billions In Damage
August 18th, 2024
The state of Idaho has shifted from an aggressive rapid response – the emergency eradication of quagga mussels found in the mid-Snake River near Twin Falls last year -- to prevention and containment, according to Nic Zurfluh, Invasive Species Bureau Chief at the Idaho State Department of Agriculture. The incident was the first time invasive, destructive mussels were verified in the Columbia River basin.
Once Again Invasive Zebra Mussels Found In Aquarium Moss Balls In Washington, Prompts Rapid Response
August 18th, 2024
The Washington Department of Fish and Wildlife received notification last week from a local wholesale aquarium company in Renton of possible invasive freshwater mussels on a shipment of Marimo moss balls. Moss balls are a commonly used decorative algae in aquariums and water gardens.
USFWS Releases Strategy To Avoid Extinction Of Northwest Spotted Owls: Lethally Remove Small Numbers Of Invasive Barred Owls
July 4th, 2024
The U.S. Fish and Wildlife Service this week released its final environmental impact statement analyzing proposed barred owl management alternatives to protect northern and California spotted owls in Washington, Oregon and California from invasive barred owls.
Bass Predation Primary Reason For Struggling Wild Chinook In Oregon River, ODFW Allowing Spearfishing To Remove The Invasive Fish
July 4th, 2024
Spearfishing for bass is allowed on southwest Oregon’s Coquille River through Oct. 31. Spears, spear guns and angling with bait to take smallmouth bass is allowed, and there are no harvest size or limits.
For First Time Invasive, Predatory Pike Show Up In Montana Clark Fork River Tributary, Posing Threat To ESA-Listed Bull Trout
June 21st, 2024
Montana Fish, Wildlife & Parks is asking anglers to report any northern pike caught or observed in the Bull River, a tributary of the Clark Fork River, following the first confirmed detection of the predacious non-native fish. The Clark Fork River in northwest Montana flows into Lake Pend Oreille in northern Idaho.
Invasive Walleye Moving Higher Into Snake River Basin, Threatening Wild, Hatchery Stocks Of Juvenile Salmon, Steelhead, Lamprey
March 22nd, 2024
Walleye, an invasive species with a reputation for a voracious appetite, has moved down the Columbia River from Lake Roosevelt and are now being counted in increasing numbers upstream of Lower Granite Dam on the Snake River, according to a report by the Idaho Department of Fish and Game.
Efforts To Suppress Salmon-Eating Northern Pike In Upper Columbia Successful, But Require Long-Term, Sustained Effort
February 16th, 2024
Efforts to suppress northern pike in reservoirs upstream of Chief Joseph and Grand Coulee dams so far have been successful at keeping the voracious predator from populating waters downstream in what is considered the “anadromous zone” where it is feared the invasive fish would decimate salmon and steelhead runs in the Columbia River basin. Many of those anadromous fish are listed under the federal Endangered Species Act.
IDFG Surveys Impact On Fish From Copper Treatment Used To Kill Quagga Mussels In Snake River; Tons Of Dead Fish, While Some Species Survived
December 13th, 2023
Idaho Fish and Game biologists quickly learned that the copper treatment to rid a stretch of the Snake River from quagga mussels caused high mortality in certain species – at least six to seven tons of dead fish -- while others survived quite well.