Breaking Waves

Scotch broom, Japanese eelgrass, Quagga mussels, and Oregonians: How are they related? The first three are non-native, invasive species of plants and animals -  and  Oregonians often unknowingly spread these and a growing number of other invaders. But they can also stop invasive species before they spread.

A year-long educational effort to prevent the spread of invasive species in Oregon ramps up this month, with the premiere of a new documentary film produced by Oregon Public Broadcasting. The hour-long documentary, “The Silent Invasion,” has its OPB broadcast premiere on Earth Day, April 22 at 8 p.m.

But Oregon Sea Grant’s contributions of time and expertise to the production is bringing special advance screenings to Corvallis, on April 9, and Nweport, on April 17.

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Visit our new Marine Invaders page for more tools to aid in the fight to identify and control the spread of invasive animals and plants.

CORVALLIS, Ore. (Sept. 12, 2007)- An invasion of American beach grass is under way along the Oregon coast, threatening to change dune ecology and reduce the ability of dunes to protect roads, property and towns from coastal storms.

Sea Grant-funded scientists at Oregon State University have documented a slow but steady takeover by this beach grass, an invasive species. They found that protective “foredunes” covered by the new grass species are only about half as high as those created by the European species of grass that were formerly dominant.

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The exotic plant in your garden, the unusual crab on the beach, the grasses choking a river or creek : If they aren’t from around here, they may be poised to wreak havoc with the local environment - and cost you and your neighbors money.

Oregon’s natural communities and the urban, suburban, rural communities we reside in are increasingly threatened by invasive species, a silent form of biological pollution that often goes undetected until it is too late to treat. Controlling invasive species and the problems they cause cost Oregonians tens of millions of dollars annually and over a billion dollars in the United States.

Sam Chan, Sea Grant Extension’s aquatic ecosystems health educator, will speak in Eugene on Aug. 9 as part of the Oregon Museum of Science and Industry’s “Science Pub” series, which brings scientists and the public together in a casual pub environment to discuss developments in science and technology - while enjoying food and drinks. Adults only, no science background required.

What: OMSI Science Pub, The Invader in My Backyard: Invasive Species in Oregon
When: Thursday, Aug. 9, 7 p.m.
Where: Luna, 30 E. Broadway, Eugene
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NEWPORT - Sea Grant Extension’s Sam Chan and Oregon Public Broadcasting’s Ed Jahn team up on Monday, Aug. 20 for “Scenes of a Changing Coastal China: How Oregon and China are connected through a desire to control invasive plants and animals,” a presentation that starts at 12:30 p.m. in the Hatfield Marine Science Center’s Hennings Auditorium.

The presentation is based on a recent trip Chan led to China’s Fujien Province, where he and other invasive species and natural resource education and communications specialists from Oregon, Washington, and Florida got a first-hand look at how the Chinese are dealing with invasive marine grasses that threaten vital coastal mangrove forests.

The presentation is free and open to the public.

Oregon Sea Grant’s Sam Chan will lead a three-state delegation of invasive species, restoration, and science education and communications experts on a 11-day trip to China this month to help the Chinese begin to assess the extent of a non-native marine-grass invasion that threatens mangrove dominated coastal forests in that country’s Fujian province.

The long-term goal is to forge a relationship between invasive species experts in the US and China that could help both countries better deal with the threats non-native plants and animals pose to local species and ecosystems — and perhaps reduce the transport of such organisms via trans-Pacific commerce.

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