Almost every trip on the Healthy Grin has something to do with science. We stick tags in all sorts of fish, collect tissue samples, or bring in whatever the scientists need. Often, we have exempted fishing permits allowing us to collect fish that otherwise, we would not be able to fish for under normal recreational regulations. These are photos from some of the science work.

Giant Bluefin tagged for Dr. Molly Lutcavage

Tagged White Marlin


Dr. Andrij Horodysky

John Graves and Dan Dutton Researching Blue Marlin

First Pop-Up Red

Gilad Heinisch

Dan Dutton

Cam the Scientist

Dr. John Graves

Blue Marlin Study


Dr. Graves Instructing His Grad Student

Researchers: Michael Domeier, Dan Dutton, Jason Schratwieser

Roundscale Spearfish

Doctors Graves and Harvey examine a blue marlin

Tagging Giants

Tagged Sword






















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