Restoration of Aka River (Tsuruoka City, Yamagata Prefecture)

As for Aka River running through Yamagata Prefecture and flowing into the Japan Sea, the number of migratory fish including oncorhynchus masou has decreased which is caused by migration prevention due to the groundsill and the disappearance of deep pools, which provide a valuable habitat. Along with the thick growth of trees such as Robinia pseudoacacia, the bar area is decreasing and the riparian part shrinking, thus the river landscape unique to Aka River has been lost.
For this reason, a nature regeneration project including the improvement of fish passes and Robinia pseudoacacia extermination tests is being conducted to secure the continuity of the river, conserve and create the river environment and regenerate the original nature of Aka River.

By JRRN-secre | Category: Nature oriented restoration,Tohoku | Comment(0) | Trackback(0) |
Date: 2011.09.10 17:56