DISCOVERY OF THE SPAWNING AREA FOR JAPANESE EEL
DISCOVERY OF THE SPAWNING AREA FOR JAPANESE EEL
复制标题
DOI：
10.1038/356789a0
复制
发表时间：
1992-04-30
期刊：
影响因子：
64.8
通讯作者：
TSUKAMOTO, K
中科院分区：
文献类型：
--
作者：
TSUKAMOTO, K
本世纪初，丹麦海洋学家约翰内斯·施密特概述了大西洋鳗鱼安圭拉属的产卵区域。在马尾藻海 1,2。但日本鳗鱼 A. japonica 在太平洋的产卵地点 60 多年来一直困扰着研究人员。我在此报告它们产卵地点的发现。通过测量海洋条件并收集透明的叶状鳗鱼幼虫（称为细头鳗）（见图 1），我们确定日本鳗鱼产卵区位于马里亚纳群岛以西的北赤道洋流，位于北纬 15 度、东经 140 度附近的盐度前沿。这一发现表明，大西洋鳗鱼和太平洋鳗鱼的产卵地之间的主要相似之处在于，细头鳗鱼所处的主要洋流将使它们返回幼鱼的饲养栖息地。
AT the beginning of this century, the Danish oceanographer Johannes Schmidt outlined the spawning area of Atlantic eels Anguilla spp. in the Sargasso Sea 1,2. But the spawning location of the Japanese eel A. japonica in the Pacific Ocean has eluded researchers for over 60 years. I report here the discovery of their spawning location. By measuring oceanographic conditions and collecting the transparent leaf-like eel larvae, termed leptocephali (see Fig. 1), we determined the Japanese eel spawning area to be in the North Equatorial Current west of the Mariana Islands, at a salinity front near 15-degrees-N, 140-degrees-E. This discovery shows that the key similarity between the spawning sites of Atlantic and Pacific eels is the placement of leptocephali into the major ocean currents that will return them to their juvenile rearing habitats.