We spent a few days hunting bluefin and scored some nice albacore fishing and a fantastic view of a blue whale mom and calf. We continue to have challenges getting bluefin to bite our live sardines. One hypothesis is that the bluefin are feeding on anchovy bait balls and getting them to switch to sardines is a challenge. A second hypothesis is that the fish were boat shy from the commercial fishing efforts in the region. We decided to change our tactics. We moved to working with the ranchers at Mariculture del Norte- a spectacular bluefin ranch that catches wild bluefin and holds them in pens. We went down to the pens where in previous years the ranch helped our scientists release small bluefin tuna for the archival tagging study for TOPP. The collection occurs when the ranch owners allow us to approach a pen and "fish" from the stock. While it sounds easy to execute this "fish in the barrel"effort, it takes careful planning to catch a live bluefin and safely transfer the fish from the pens to the wells flowing with seawater on the Shogun. Captain Bruce and Sean were the fishers-with a line and circle hook. They caught the fish and transferred each fish to a sling of seawater. Louise and Ty from the TRCC removed the hook and passed the fish to Andy Seitz and Kurt Schaefer who motored in a Zodiac over to the Shogun swim step, where Dan and Jake lifted the fish to the deck of the shogun. We measured each fish and placed them in the "slammer" the back bait well on the Shogun. It was quite the operation. We sampled several fish by placing small tissues in Liquid nitrogen- a quick way of super cooling muscle samples for a new national NOAA funded aquaculture project we have started in collaboration with the Pen farmers. We hope to develop several Genomic markers for conditioning that will help establish the health and aerobic status of bluefin in captivity. All and all a fun day with innovative techniques made possible by the ever versatile crew aboard the F/V Shogun.