Mr. Chuck Farwell, curator and researcher at Monterey Bay Aquarium, gave a lecture on tuna for JGFA. It was centered on the tagging practice and data collected by it. Because tuna are rather high re-capture rate, it is viable to install rather expensive internal archival tag, which can collect large volume of data. By the aid of high-tech tags, researchers are starting to learn some surprising life of tuna. Most amazing of all, some tuna can dive up to 3,000 feet, and is capable of making a trans-Pacific travel. Who knows, a tuna caught in Japan and fetch a record price in Tsukiji Fish Market may be one of such long-range cruisers! |
