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Nature 439, 929 (23 February 2006) | doi:10.1038/439929a; Received 18 November 2005; Accepted 2 February 2006; Published online 22 February 2006
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- Georg-August-Universitat Gottingen
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Oceanic biology: Spawning of eels near a seamount
Katsumi Tsukamoto1
Abstract
Tiny transparent larvae of the Japanese eel collected in the open ocean reveal a strategic spawning site.
Abstract
Discoveries of the larvae of the European and American eels, Anguilla anguilla and A. rostrata, in the Sargasso Sea1, 2 and of the Japanese eel, A. japonica, in the Philippine Sea3 indicate that these freshwater eels migrate thousands of kilometres into the open ocean to spawn. Here we pinpoint a spawning location for Japanese eels after genetically identifying newly hatched larvae that we collected from the site. The restricted size of this spawning area ensures that the eel larvae enter a particular current that transports them to the freshwater areas in east Asia where they mature, and it also prevents them from being carried southwards away from their species range by a different local current.
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