This beautiful ad is part of a campaign warning about the threat of overfishing, specifically in relation to tuna.
"Because of its high market value, tuna are among the “most wanted” fish for those fishing illegally. A single tuna was sold for a record $ 1.76 million at a Tokyo auction. Over exploitation and illegal fishing drove this species to brink of collapse. In the near future, Bluefin tuna might be a successful history of recovery, but the rest of oceans giants remain forgotten while they disappear from our seas."
Visit the superb Sea Legend website to find out more. I've textivated the voiceover below, and you can find the original text here. Click on textivate.com and then 'textivate now' for lots more activities based on the same text.