Burgerhout Erik, Manabe Ryotaro, Brittijn Sebastiaan A, Aoyama Jun, Tsukamoto Katsumi, van den Thillart Guido E E J M
ZF-Screens BV, Niels Bohrweg, CA Leiden, The Netherlands.
Naturwissenschaften. 2011 Jul;98(7):631-4. doi: 10.1007/s00114-011-0805-0. Epub 2011 May 19.
The journey of the European eel to the spawning area in the Sargasso Sea is still a mystery. Several trials have been carried out to follow migrating eels with pop-up satellite tags (PSATs), without much success. As eels are very efficient swimmers, tags likely interfere with their high swimming efficiency. Here we report a more than twofold increase in swimming cost caused by a regular small satellite tag. The impact was determined at a range of swimming speeds with and without tag in a 2-m swimming tunnel. These results help to explain why the previous use of PSATs to identify spawning sites in the Sargasso Sea was thus far unsuccessful.
欧洲鳗鱼前往马尾藻海产卵区的旅程仍是个谜。人们已经进行了多次试验，试图用弹出式卫星标签（PSAT）追踪洄游的鳗鱼，但成效不大。由于鳗鱼是非常高效的游泳者，标签可能会干扰它们的高游泳效率。在此我们报告，一个普通的小型卫星标签会使游泳成本增加两倍多。在一个2米长的游泳隧道中，我们测定了有标签和无标签情况下一系列游泳速度下的影响。这些结果有助于解释为何此前使用PSAT来确定马尾藻海产卵地的尝试至今未成功。
