Tuhia he tomokanga mō tēnei wāhanga - Ko te "Ryou-Un Maru", he kaipuke ika i roto i te kaipuke kaihokohoko Japanese, i hangaia i te tau 1982. He kamupene hī ika nō Hokkaido te kaipupuri, ā, i whakamahia hei hī ika, hei hī ika rānei. Whai muri i te roa o te mahi, ka whakatau te rangatira o te kaipuke kua tawhito rawa mo te whakamahi tonu, ka whakatere ki Aomori Prefecture i Honshu e tatari ana ki te hoko. I te wā i pā mai ai te ruu o Tōhoku me te tsunami
i patua i te Poutu-te-rangi 2011, i pakaru te "Ryou-Un Maru" i waho, ā, i whakatakotoria ki te moana.