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Archive for October 24, 2011

Crayfish – native or invaders?

Posted by: | October 24, 2011 Comments Off on Crayfish – native or invaders? |

Invasive crayfish are spreading in Oregon, and Sea Grant’s Sam Chan has put together a handy photographic guide to distinguishing three common invasive varieties from American signal crayfish, which is native to the state. A recent KTVZ report on the invaders prompted several commenters to ask for photos to distinguish them from the native species, […]

under: Oregon Sea Grant