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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

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Macroinvertebrate Communities


The historical presence of macroinvertebrate communities in this area is unknown. Macroinvertebrate communities would have likely been present in any historic aquatic habitat.


Field surveys conducted by the Bureau of Planning staff and ODFW biologists in 1990 found macroinvertebrate species were abundant and include various stoneflies, mayflies, caddisflies, water striders, and crayfish (City of Portland Bureau of Planning, 1991b).


See the “Aquatic Habitat” section for information relative to alterations in habitat extent.
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