一直成为不解之谜的日本鳗鲡产卵场,现已被查明位于日本列岛以南200km、菲律宾东部、马里亚纳群岛两部的北太平洋水域。最近,根据东京水产大学海洋研究所资源生物研究室的塚本胜已副教授查明的情况是,该副教授于1990年6月14日至7月22日,乘研究所的白凤丸调查船在北太平洋进行了调查。调查结果表明,在7月1～2日夜晚,位于东经137度,北纬14～13度的海 The Japanese eel spawning ground, which has long been the mystery, has now been identified in the northern Pacific Ocean 200km south of the Japanese Archipelago, east of the Philippines and the Mariana Islands. Recently, according to Associate Professor Tsukamoto Shizuka, associate professor of resource biology at the Institute of Marine Science, Tokyo Fisheries University, it was ascertained that the associate professor took a research trip of the Pak Fung Pills survey ship in the north from June 14 to July 22, 1990 Pacific conducted a survey. The survey results show that on the evening of July 1-2, the sea at 137 degrees east longitude and 14 to 13 degrees north latitude