Sea Urchin is one of the most useful tools in
developmental biology studies because this organism has the simplest kind of
developmental stages. We aimed to determine developmental stages and timetable of
Echinometra mathaei embryo (the species of Persian Gulf). The
spawning of E. mathaei was induced by 0.5M KCl injection (1ml) into
the coelomic cavity. After fertilization, embryos were placed ...
