It will also use other readily available structures for nesting, such as concrete blocks, lengths of bamboo, or glass bottles.

[4] The eggs are reddish-yellow[5] to tangerine[2] in color, about 2 mm (0.08 in) in width, and sticky in texture, adhering to the shell or other nest material.

[2] In the Ariake Sea of Japan the juveniles show a clear preference for the calanoid copepod species Sinocalanus sinensis.

[3] Juveniles have been reared in the laboratory on diets of midge larvae, water fleas, and the brine shrimp Artemia salina.

Pollution from rapid urban development, overfishing, and the construction of dams and dikes threaten the species in this region.