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Fish in many of Oregon’s waters have not been sampled for contaminants that can be found in their tissue, therefore a water body that has no advisory in place does not mean the fish are free of contaminants. When data is available, OHA calculates meal recommendations and when necessary will issue a fish advisory. For more information about current advisories, or about contaminants and their health effects, call the Oregon Health Authority at 1-877-290-6767.
Fish advisories and guidelines Recreational shellfish advisories and guidelines
Advisories are designed to help you gain the health benefits of eating fish and shellfish while protecting you and your family from contaminants sometimes found in seafood.
Consumption guidelines provide recommendations for when you should limit or avoid eating certain fish or shellfish to reduce your exposure to chemicals like mercury, PCBs and other contaminants. The key is to make smart choices and choose fish and shellfish that are low in contaminants. In general, younger, smaller fish have fewer contaminants.
Screening values for chemical contaminants in fish tissue
Standard Operating Guidance used to calculate meal recommendations
Select a region on the map or check the table below for Oregon fish advisories and consumption guidelines. NOTE: There is a statewide advisory for bass.
All state water bodies
All resident fish including crayfish
Lower Willamette River, from the Sellwood Bridge to its confluence with the Columbia, to include Multnomah Channel from its confluence with the Willamette to the Sauvie Island Bridge.
All resident fish
Willamette River, from its mouth on the Columbia River southward to Eugene
Snake River, from just south of Adrien, OR north to the WA border
“Resident” fish spend their entire lives within a certain territory, and do not migrate.“Migratory” fish such as salmon, steelhead, shad and lamprey, spend most of their lives at sea, and contain less localized contaminants. In general, smaller, younger fish have fewer contaminants.
Follow these fish cleaning guidelines to reduce your exposure to PCBs and other fat-soluble contaminants.
What is a meal?
A meal is about the size and thickness of your hand, or 1 ounce of uncooked fish for every 20 pounds of body weight.
Mercury and PCBs accumulate in our bodies over time and are passed on to developing fetuses through the placenta. Children’s brains go through extraordinary development in the womb and during the first six years of life. Mercury and PCBs can interfere with normal brain development and cause lifelong learning disabilities. PCBs can also cause cancer in children and adults.
Advisory: Softshell and Gaper Clams on Oregon Coast
Softshell clams (Mya arenaria)
Siphon skin intact: 1
Siphon skin removed: 11
Siphon skin intact: 2
Siphon skin removed: 26
Siphon skin intact: 4
Siphon skin removed: 33
Meal size by clam weight(excluding shells)
Meal size by clam volume(excluding shells)
Adult (17 years and older)
12-16 years old
7-11 years old
4-6 years old
2-3 years old
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