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Mitten Crab Sighting in Oregon Threatens Native Wildlife

12/3/2025

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Summary

Story summary

Oregon wildlife officials confirmed the second sighting of the mitten crab this year in Willamette River near Portland.
Captured on November 17, the mitten crab threatens native fish and crayfish by consuming eggs and competing for food.
It is illegal to possess or sell mitten crabs in Oregon.
The Oregon Department of Fish and Wildlife (ODFW) collaborates with partners to search for mitten crabs using DNA sampling and artificial habitats.

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Story summary

Oregon wildlife officials confirmed the second sighting of the mitten crab this year in Willamette River near Portland.
Captured on November 17, the mitten crab threatens native fish and crayfish by consuming eggs and competing for food.
It is illegal to possess or sell mitten crabs in Oregon.
The Oregon Department of Fish and Wildlife (ODFW) collaborates with partners to search for mitten crabs using DNA sampling and artificial habitats.