Dr. EEL

09/08/2018

The paper is open access on the journal website or search the title of the paper online for the PDF file:
http://zoolstud.sinica.edu.tw/

Tracking Anguilla japonica Silver Eels Along the West Marina Ridge Using Pop-up Archival Transmitting Tags

09/08/2018

A unique analysis of the nighttime depth of the eel in relation to lunar cycle and the presence or absence of the moon each night clearly showed that the eel moved deeper in the presence of the moon. This would be a predator avoidance strategy, since large predators feed at these depths at night.

09/08/2018

This eel showed a clear diel vertical migration (DVM) from shallow night depths, to deep day depths. Likely a predator avoidance strategy, but also for temperature regulation of gonadal maturation during the long migration. It reached a more constant daytime temperature, compared to depth, suggesting a low temperature preference.

09/08/2018

Our Nihon University Eel Science Laboratory graduate student Higuchi San’s first scientific paper was published recently about Japanese eels released in their spawning area after being tagged with pop-up satellite transmitting data recording tags.

08/08/2018

The paper is open access on the Nature Journals website:

Article

08/08/2018

This plot of the ages of the v-larvae shows that they were transported faster to the west in the North Equatorial Current and more entered and went farther in the Kuroshio Current.

08/08/2018

This shows the simulated transport patterns of leptocephali (v-larvae in the model) that were plotted for each year from 1993 to 2013. The amount of successful transport (possible recruitment) was usually higher in the earlier years.

08/08/2018

We recently collaborated with transport modelling experts at JAMSTEC to publish this paper about the possible influence of changing patterns of ocean currents on recruitment declines on the Japanese eel.

07/07/2018

It has been a busy year in the Eel Science Lab, and its time for the 2018 Unadon Public Symposium at the University of Tokyo Tomorrow Sunday July 8. Dr. Alan Walker from the U.K. will be the Keynote Speaker to talk about issues related to the European eel and CITES etc. Other talks are about the Japanese eel.

01/08/2017

The symposium began with research presentations from students, including from our laboratory. One of our students won the best presentation award.

01/08/2017

The 5th annual open-to-public Unadon Symposium was held recently at the University of Tokyo Yayoi wooden Auditorium to educate the public about research and conservation issues related to Japanese eels. Lectures were given by representatives from various organizations related to eels in Japan. There was also a guest lecture from an eel NPO in Europe.

30/06/2017

The YKDT towed camera system was used to collect water samples with newly attached Niskin bottles and to survey for eels at shallower nighttime depths. During one dive, an anguillid eel was seen underwater in its spawning area for the first time in the world, and Japanese eel eDNA was detected several times from water samples.