Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, Japan.
Nanae Freshwater Station, Field Science Center for Northern Biosphere, Hokkaido University, Hokkaido, Japan.
J Fish Biol. 2024 Sep;105(3):998-1003. doi: 10.1111/jfb.15824. Epub 2024 May 29.
Anguilla marmorata collected in the Odana River lower reaches were passive integrated transponder-tagged displaced and released into the upper river reaches (54 up-transported eels), and eels collected in the upper reaches were tagged and released downstream (52 down-transported eels). Their movements were detected once per day for 10 days using a portable radio-frequency identification (RFID) system. The homing rate of the down-transported eels was 38.9%, compared to 3.7% for the up-transported eels, suggesting that eels inhabiting upstream areas have relatively high fidelity to their habitats and downstream eels have less fidelity.
在奥达纳河下游采集的大理石鳗被被动集成射频识别标签标记并转移到上游（54 条上移鳗鱼），在上游采集的鳗鱼被标记并释放到下游（52 条下移鳗鱼）。使用便携式射频识别（RFID）系统，每天检测一次，共 10 天。下移鳗鱼的归巢率为 38.9%，而上移鳗鱼的归巢率为 3.7%，这表明栖息在上游地区的鳗鱼对其栖息地具有相对较高的保真度，而下游的鳗鱼保真度较低。
