The results showed that, spawning of
Thai river sprat occurred throughout of the year
according to Sirimonkonthawon (1994) and
Chookajorn et al.(1997). The populations of Thai
river sprat in northeast Thailand is a short-life span,
spawning period is peaked in June to July or rainy
season and low in December to February or cold
season. Occurrence of larval population surveys
in June and August which covered this period was
regarded according to their spawning season.