I have traveled to Okinawa in Japanese subtropics in June and have taken pictures of freshwater fish in a natural habitat in the water.
Some pictures of the fish and videos besides Stiphodon genus are introduced.
Around the mouth of a river.
The young fish crowd(Amphidromous migration) going upstream to a freshwater river from a sea.
Video clip is on youtube.
http://www.youtube.com/watch?v=hA4Hdim1TBw
Pandaka trimaculata,Rinogobius sp,Sicyoputerus sp and others.



Fish from downstream.
Various fish and shrimp are seen in this videoclip.
http://www.youtube.com/watch?v=5rkdHU9Ce_E
Eleotris acanthopoma


Eleotris fusca
http://tanzawa-sky-club.air-nifty.com/p ... /anago.jpg[/img]
Microphis (Coelonotus) leiaspis


Stenogobius sp

Mugil cephalus cephalus

Macrobrachium sp

Rinogobius sp in a middle-class area on a river.
Video clip is blow.
http://www.youtube.com/watch?v=PMIoO3sEO2w
Rinogobius sp


