Where do the menhaden go as they get older? And how do we know? Tagging fish that are caught by the tens of thousands requires an ingenious system. What about winter migrations? In this episode, John Page shares observations of scientists and watermen about the most important fish in the sea. [To find out why menhaden are considered "the most important fish in the sea," go to our video at https://www.cbf.org/news-media/multimedia/video/why-are-menhaden-the-most-important-fish-in-the-sea.html]