Project Permit Tagging Instructions

Costa Del Mar Permit Tagging Research Program

Permit Tagging Instructions

Thank you for offering your time and effort to tag permit for the Costa Del Mar Permit Tagging Research Program.  The information from tagging and recapture of tagged permit will provide information on movement patterns and growth rates.

The tagging kit includes: tags, a tag applicator, datasheet for recording tagging, a pencil, measuring tape and tagging instructions.

Tagging a Permit

  • It is best to have two people present when tagging permit to reduce time needed to tag and to reduce handling time. Some anglers and captains experienced in tagging are able to tag permit solo.
  • Have the tag inserted into the applicator and ready to go before landing the permit.
  • If possible, keep the permit in the water during the tagging process.
  • Measure the fish.
  • Use the tip of the tag and applicator to scrape away one or two scales. This provides easy entry of the tag.
  • Push the tag applicator into the fish with a swift motion.
  • Insert the tag far enough to allow the barb to become lodged in the bones (called pterygiophores) descending from the dorsal fin. Sometimes a slight “click” can be felt as the barb slides over a bone and locks behind it. Please be sure the barb on the tag is fully inserted into the bones.  A tag that is only in the meat of the fish will eventually fall out.
  • Pull back on the applicator to remove it from the fish. Give the tag a slight tug.  If set correctly, you should see a small section of dorsal musculature move on the other side of the dorsal fin.
  • Make sure you note the tag number!
  • Record the data on the enclosed data sheet

 

Tagging location

Permit_tagging

Care and Storage of the Tags

The tags should not be subjected to heat (such as prolonged direct sunlight). Keep in a location protected from prolonged sun exposure and heat.

Care of the tag stick

The tip of the applicator should be kept sharp to a V point. Store the applicator so the point is protected to prevent bending or dulling the point.