Born in Tokyo in 1938. Passed his boyhood on Amami-oshima island. Moved to Amami again in 1974 from Tokyo. Interested in taking pictures, shooting videos and fishing.

A vast mangrove forest spreads at the delta where the Yakugachi and Sumiyo Rivers meet. It boasts of being the second largest in size (71ha) after that of Iriomote Island, Okinawa Prefecture. Our mangrove forest consists of more than ten kinds of trees. Mehirugi (Kandelia candel) and Ohirugi (Bruguiera gymnorrhiza) trees are typical.
   Picture 1 shows Mehirugi trees. Their white flowers bloom around July and the slender, viviparous fruit come to maturity on the twigs almost after a year, reaching the length of 20 to 40 centimeters. Then they drop to the muddy sand. Some stick in the mud and grow there. Some are carried off to other places by the waves. If they are lucky, they will germinate and grow there.
   Picture 2 shows Ohirugi trees that form a canopy, overhanging both banks of the stream. At high tide, you can enjoy canoeing through the tunnel of Ohirugi trees.
   The mangrove swamp is inhabited by various small creatures. At ebb tide, Minami-Kometsukigani crabs (Southern-Japanese sand-bubbler crabs/Picture 3)  are in countless numbers on the tidal flat. Their uniqueness is that they walk forward, not sideways like almost all other crabs. They scoop mud into their mouth and take in only organic matter, filtering out impurities. If you would like to watch them, you will need a pair of binoculars or a telescope, because they  easily frighten and bury themselves into the mud very quickly.       
To enlarge, please click the photo.