An 18 months study was conducted from July 2012 to December 2013 to evaluate the impact of channel construction work on the reproduction of a goby, Rhinoqobius rubromaculatus, in a stream of southern Taiwan. The result showed that stream engineering can decrease the egg mass production of R. rubromaculatus, but it can quickly recover and adapt to the human-modified channel by increasing egg mass and fecundity after disturbance.