Seamounts and the mystery of eel spawning
Seamounts and the mystery of eel spawning
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DOI：
10.1007/s001140050502
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发表时间：
1998-06-01
影响因子：
--
通讯作者：
Tsukamoto, K
中科院分区：
文献类型：
--
作者：
Fricke, H;Tsukamoto, K
Fig. 1.北太平洋西部地图，包括A.粳稻幼虫1991年、1994年和1995年，东京大学海洋研究所（ORI）的白凤丸号考察船共采集了2196只细头蚴。黑色圆圈，有幼虫捕获的站;白色圆圈，没有幼虫捕获的站;三角形，SM的位置;箭头，表面流的方向和速度在0.1和0.6 m/s之间。请注意，SM的阳性站点E的缺失。在丹麦生物学家J.施密特提出欧洲鳗鲡（Anguilla anguilla）在马尾藻海大约200米深的地方产卵后的近世纪，这些鳗鱼究竟在哪里产卵，以及它们是如何到达那里的谜团仍然没有解决。产卵场的位置仅从幼虫分布推断;从未观察到产卵的成虫[1，2]。最近的一个理论基于北大西洋环流的数值模拟，结合鳗鱼的生物学参数（罗盘航向能力、平均速度和生理状态），预测成年鳗鱼的路线受南大西洋环流和北赤道流的控制，并到达南马尾藻海[3]。
Fig. 1. Map of the western North Pacific with collecting stations of A. japonica larvae. A total of 2196 leptocephali were collected by Hakuho Maru cruises of the Ocean Research Institute (ORI), University of Tokyo, in 1991, 1994 and 1995. Black circle, station with larve catches; white circle, station without larvae catches; triangle, position of SM; arrows, direction and velocity of surface current between 0.1 and 0.6 m/s. Notice the absence of positive stations E of the SMsAlmost a century after the Danish biologist J. Schmidt suggested that the European eel Anguilla anguilla spawns at around 200 m depth in the Sargasso Sea, the mystery of where precisely these eels spawn, and how they get there is still unsolved. The location of the spawning site had been inferred from larva distribution only; spawning adults were never observed [1, 2]. A recent theory based on a numerical simulation of the North Atlantic circulation combined with biological parameters of the eels (compass course abilities, average velocity, and physiological state) predicts that the route of adult eels is governed by the Southern Atlantic circulation and the North Equatorial Current with arrival into the Southern Sargasso Sea [3].