This work was part of 2012 cooperative research efforts between BSFRF, the National Marine Fisheries Service (NMFS) and the Alaska Department of Fish and Game (ADF&G). Main goals were to collect juvenile Tanner crab during the spring when they are known to molt, transport them from the molting areas on the northwest Bering Sea shelf to holding facilities both at Dutch Harbor and at the NMFS Alaska Fisheries Science Center Kodiak laboratory and maintain them until they molt. The data from this experiment would then analyzed to produce a function that will allow the prediction of postmolt carapace width from premolt width.