Research groups such as Nagasaki University have announced that they have discovered that when juvenile Japanese eels, which are designated as endangered species, can escape from the gaps in the eels of the fish when they are eaten by fish, and decided to increase the amount of eel resources. It is said that it is a connected result.
The research group of Associate Professor Yuuki Kawabata of the Graduate School of Fisheries and Environmental Sciences, Nagasaki University is known to eat fry because the amount of resources has decreased significantly, such as the designation of Japanese eel as an endangered species. I put a fry of an eel in a water tank containing a fish called Donko and investigated how it behaves.
Then, although the eel fry was once preyed on by the sleeper, it was confirmed that it was swimming in the aquarium after a while, and when I examined the images taken by the camera, the eel fry that was eaten came through the gap of Ella. It means that I found out that I could escape.
Of the 54 eel fry that were eaten, more than half, 28, escaped from the gills, all of which escaped backwards from their tails.
Yu Hasegawa, a graduate student who conducted the experiment, said, "This is an achievement that increases the probability that eels will survive and increases the amount of resources."