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Red rock crab tagging project

tagged red rock crab
Large red rock crab male

Red rock crab tagging

Though it is a popular fishery target, scientists know surprisingly little about the red rock crab. Beginning in the summer of 2012, hundreds of red rock crab have been tagged within Coos Bay, Oregon.

These red rock crab are tagged right on their “molt line” thus allowing them to retain the tag, after a molting. The purpose of this tagging effort is to recapture crabs after they have molted to determine growth increments. Additionally, movement, age, and fishery mortality can be gleaned from this tagging effort


Red rock crab
Red rock crab tag right on "molt line"
tagged crab
Red rock crab

If you find a tagged crab:

We ask those crabbing to assist with this study when possible:

Here's some choices of what to do if you find a tagged red rock crab:

  1. Bring the crab into the Charleston ODFW office to be measured, then either re-release it or keep it. You can just drop it off too.
  2. Call the phone number on the tag (541) 888 5515 and report the number if you are too busy to bring it in.
  3. If harvested, the tag# and carapace are still useful to research if you could keep them.
  4. Just drop it back in the water. We are performing regular collection, so we may get it later anyway


Rewards include crab measuring gages or identification sheets.


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