The Big Fish Are Getting Littler

Ominous news from the oceans:

For generations, tour boats have been collecting fishing enthusiasts in Key West, Fla.: taking them for a day of deep sea casting; providing them rods, bait, companionship; and then, when the day ends, there's a little wharf-side ceremony. Everyone is invited to take his biggest fish and hook it onto the "Hanging Board"; a judge compares catches, chooses a champion, and then the family that caught the biggest fish poses for a photograph.

...Loren visited this wharf in 2007 and discovered, as she writes in her scientific paper, that these display boards "had not changed over time," which meant she could measure the board, and then (using the photos) measure the fish. Clearly, these fish are way smaller than the ones from the 1950s.