The sample sizes of the target species of JARPA II are calculated
following the established but complex statistical procedures For example, after calculating the number of samples necessary to detect annual changes of each research item, such as age at maturity, pregnancy rate and blubber thickness, the sample size for minke whales was found to be 850 (with 10% allowance), because the statistical conditions are satisfied for most of the research items with this number As in JARPA, JARPA II was carefully designed not to harm whale stocks